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freebsd-nq/config/kernel-xattr-handler.m4

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Linux 2.6.35 compat, const struct xattr_handler The const keyword was added to the 'struct xattr_handler' in the generic Linux super_block structure. To handle this we define an appropriate xattr_handler_t typedef which can be used. This was the preferred solution because it keeps the code clean and readable.
2011-02-11 00:16:52 +00:00
dnl #
dnl # 2.6.35 API change,
dnl # The 'struct xattr_handler' was constified in the generic
dnl # super_block structure.
dnl #
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
AC_DEFUN([ZFS_AC_KERNEL_SRC_CONST_XATTR_HANDLER], [
ZFS_LINUX_TEST_SRC([const_xattr_handler], [
Linux 2.6.35 compat, const struct xattr_handler The const keyword was added to the 'struct xattr_handler' in the generic Linux super_block structure. To handle this we define an appropriate xattr_handler_t typedef which can be used. This was the preferred solution because it keeps the code clean and readable.
2011-02-11 00:16:52 +00:00
#include <linux/fs.h>
#include <linux/xattr.h>
const struct xattr_handler xattr_test_handler = {
.prefix = "test",
.get = NULL,
.set = NULL,
};
const struct xattr_handler *xattr_handlers[] = {
&xattr_test_handler,
};
Stop runtime pointer modifications in autotools checks c38367c73f592ca9729ba0d5e70b5e3bc67e0745 was meant to eliminate runtime function pointer modifications in autotools checks because they were prone to false negatives on kernels hardened by the PaX project. Unfortunately, I missed the xattr_handler and super_block->s_bdi autotools checks. Recent changes to PaX constified xattr_handler->get/set, which lead me to discover this oversight. Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #1433
2013-09-10 19:13:44 +00:00
const struct super_block sb __attribute__ ((unused)) = {
.s_xattr = xattr_handlers,
};
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_CONST_XATTR_HANDLER], [
AC_MSG_CHECKING([whether super_block uses const struct xattr_handler])
ZFS_LINUX_TEST_RESULT([const_xattr_handler], [
Linux 2.6.35 compat, const struct xattr_handler The const keyword was added to the 'struct xattr_handler' in the generic Linux super_block structure. To handle this we define an appropriate xattr_handler_t typedef which can be used. This was the preferred solution because it keeps the code clean and readable.
2011-02-11 00:16:52 +00:00
AC_MSG_RESULT([yes])
],[
Linux compat: Minimum kernel version 3.10 Increase the minimum supported kernel version from 2.6.32 to 3.10. This removes support for the following Linux enterprise distributions. Distribution | Kernel | End of Life ---------------- | ------ | ------------- Ubuntu 12.04 LTS | 3.2 | Apr 28, 2017 SLES 11 | 3.0 | Mar 32, 2019 RHEL / CentOS 6 | 2.6.32 | Nov 30, 2020 The following changes were made as part of removing support. * Updated `configure` to enforce a minimum kernel version as specified in the META file (Linux-Minimum: 3.10). configure: error: *** Cannot build against kernel version 2.6.32. *** The minimum supported kernel version is 3.10. * Removed all `configure` kABI checks and matching C code for interfaces which solely predate the Linux 3.10 kernel. * Updated all `configure` kABI checks to fail when an interface is missing which was in the 3.10 kernel up to the latest 5.1 kernel. Removed the HAVE_* preprocessor defines for these checks and updated the code to unconditionally use the verified interface. * Inverted the detection logic in several kABI checks to match the new interface as it appears in 3.10 and newer and not the legacy interface. * Consolidated the following checks in to individual files. Due the large number of changes in the checks it made sense to handle this now. It would be desirable to group other related checks in the same fashion, but this as left as future work. - config/kernel-blkdev.m4 - Block device kABI checks - config/kernel-blk-queue.m4 - Block queue kABI checks - config/kernel-bio.m4 - Bio interface kABI checks * Removed the kABI checks for sops->nr_cached_objects() and sops->free_cached_objects(). These interfaces are currently unused. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #9566
2019-11-12 16:59:06 +00:00
ZFS_LINUX_TEST_ERROR([const xattr_handler])
Linux 2.6.35 compat, const struct xattr_handler The const keyword was added to the 'struct xattr_handler' in the generic Linux super_block structure. To handle this we define an appropriate xattr_handler_t typedef which can be used. This was the preferred solution because it keeps the code clean and readable.
2011-02-11 00:16:52 +00:00
])
])
Linux 2.6.33 compat, get/set xattr callbacks The xattr handler prototypes were sanitized with the idea being that the same handlers could be used for multiple methods. The result of this was the inode type was changes to a dentry, and both the get() and set() hooks had a handler_flags argument added. The list() callback was similiarly effected but no autoconf check was added because we do not use the list() callback.
2011-02-11 18:33:01 +00:00
Linux 4.5 compat: Use xattr_handler->name for acl Linux 4.5 added member "name" to xattr_handler. xattr_handler which matches to whole name rather than prefix should use "name" instead of "prefix". Otherwise, kernel will return with EINVAL when it tries to resolve handlers. Also, we remove the strcmp checks when xattr_handler has name, because xattr_resolve_name will do the check for us. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #4549 Closes #4537
2016-04-22 00:19:07 +00:00
dnl #
dnl # 4.5 API change,
dnl # struct xattr_handler added new member "name".
dnl # xattr_handler which matches to whole name rather than prefix should use
dnl # "name" instead of "prefix", e.g. "system.posix_acl_access"
dnl #
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
AC_DEFUN([ZFS_AC_KERNEL_SRC_XATTR_HANDLER_NAME], [
ZFS_LINUX_TEST_SRC([xattr_handler_name], [
Linux 4.5 compat: Use xattr_handler->name for acl Linux 4.5 added member "name" to xattr_handler. xattr_handler which matches to whole name rather than prefix should use "name" instead of "prefix". Otherwise, kernel will return with EINVAL when it tries to resolve handlers. Also, we remove the strcmp checks when xattr_handler has name, because xattr_resolve_name will do the check for us. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #4549 Closes #4537
2016-04-22 00:19:07 +00:00
#include <linux/xattr.h>
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.name = XATTR_NAME_POSIX_ACL_ACCESS,
};
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_NAME], [
AC_MSG_CHECKING([whether xattr_handler has name])
ZFS_LINUX_TEST_RESULT([xattr_handler_name], [
Linux 4.5 compat: Use xattr_handler->name for acl Linux 4.5 added member "name" to xattr_handler. xattr_handler which matches to whole name rather than prefix should use "name" instead of "prefix". Otherwise, kernel will return with EINVAL when it tries to resolve handlers. Also, we remove the strcmp checks when xattr_handler has name, because xattr_resolve_name will do the check for us. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #4549 Closes #4537
2016-04-22 00:19:07 +00:00
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_HANDLER_NAME, 1,
[xattr_handler has name])
],[
AC_MSG_RESULT(no)
])
Linux 4.9 compat: remove iops->{set,get,remove}xattr In Linux 4.9, torvalds/linux@fd50eca, iops->{set,get,remove}xattr and generic_{set,get,remove}xattr are removed. xattr operations will directly go through sb->s_xattr. Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
2016-10-19 18:19:17 +00:00
])
dnl #
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
dnl # Supported xattr handler get() interfaces checked newest to oldest.
Linux 4.9 compat: remove iops->{set,get,remove}xattr In Linux 4.9, torvalds/linux@fd50eca, iops->{set,get,remove}xattr and generic_{set,get,remove}xattr are removed. xattr operations will directly go through sb->s_xattr. Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
2016-10-19 18:19:17 +00:00
dnl #
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
AC_DEFUN([ZFS_AC_KERNEL_SRC_XATTR_HANDLER_GET], [
ZFS_LINUX_TEST_SRC([xattr_handler_get_dentry_inode], [
Linux 4.9 compat: remove iops->{set,get,remove}xattr In Linux 4.9, torvalds/linux@fd50eca, iops->{set,get,remove}xattr and generic_{set,get,remove}xattr are removed. xattr operations will directly go through sb->s_xattr. Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
2016-10-19 18:19:17 +00:00
#include <linux/xattr.h>
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
int get(const struct xattr_handler *handler,
struct dentry *dentry, struct inode *inode,
const char *name, void *buffer, size_t size) { return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.get = get,
Linux 4.9 compat: remove iops->{set,get,remove}xattr In Linux 4.9, torvalds/linux@fd50eca, iops->{set,get,remove}xattr and generic_{set,get,remove}xattr are removed. xattr operations will directly go through sb->s_xattr. Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
2016-10-19 18:19:17 +00:00
};
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
],[])
Linux 4.5 compat: Use xattr_handler->name for acl Linux 4.5 added member "name" to xattr_handler. xattr_handler which matches to whole name rather than prefix should use "name" instead of "prefix". Otherwise, kernel will return with EINVAL when it tries to resolve handlers. Also, we remove the strcmp checks when xattr_handler has name, because xattr_resolve_name will do the check for us. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #4549 Closes #4537
2016-04-22 00:19:07 +00:00
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
ZFS_LINUX_TEST_SRC([xattr_handler_get_xattr_handler], [
Linux 2.6.33 compat, get/set xattr callbacks The xattr handler prototypes were sanitized with the idea being that the same handlers could be used for multiple methods. The result of this was the inode type was changes to a dentry, and both the get() and set() hooks had a handler_flags argument added. The list() callback was similiarly effected but no autoconf check was added because we do not use the list() callback.
2011-02-11 18:33:01 +00:00
#include <linux/xattr.h>
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
int get(const struct xattr_handler *handler,
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
struct dentry *dentry, const char *name,
void *buffer, size_t size) { return 0; }
Stop runtime pointer modifications in autotools checks c38367c73f592ca9729ba0d5e70b5e3bc67e0745 was meant to eliminate runtime function pointer modifications in autotools checks because they were prone to false negatives on kernels hardened by the PaX project. Unfortunately, I missed the xattr_handler and super_block->s_bdi autotools checks. Recent changes to PaX constified xattr_handler->get/set, which lead me to discover this oversight. Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #1433
2013-09-10 19:13:44 +00:00
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.get = get,
};
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
],[])
ZFS_LINUX_TEST_SRC([xattr_handler_get_dentry], [
#include <linux/xattr.h>
int get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int handler_flags)
{ return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.get = get,
};
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_GET], [
dnl #
dnl # 4.7 API change,
dnl # The xattr_handler->get() callback was changed to take both
dnl # dentry and inode.
dnl #
AC_MSG_CHECKING([whether xattr_handler->get() wants dentry and inode])
ZFS_LINUX_TEST_RESULT([xattr_handler_get_dentry_inode], [
Linux 2.6.33 compat, get/set xattr callbacks The xattr handler prototypes were sanitized with the idea being that the same handlers could be used for multiple methods. The result of this was the inode type was changes to a dentry, and both the get() and set() hooks had a handler_flags argument added. The list() callback was similiarly effected but no autoconf check was added because we do not use the list() callback.
2011-02-11 18:33:01 +00:00
AC_MSG_RESULT(yes)
Linux 4.7 compat: handler->get() takes both dentry and inode Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4665
2016-05-18 20:44:13 +00:00
AC_DEFINE(HAVE_XATTR_GET_DENTRY_INODE, 1,
Linux 4.7 compat: handler->set() takes both dentry and inode Counterpart to fd4c7b7, the same approach was taken to resolve the compatibility issue. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Closes #4717 Issue #4665
2016-06-02 01:10:06 +00:00
[xattr_handler->get() wants both dentry and inode])
Linux 2.6.33 compat, get/set xattr callbacks The xattr handler prototypes were sanitized with the idea being that the same handlers could be used for multiple methods. The result of this was the inode type was changes to a dentry, and both the get() and set() hooks had a handler_flags argument added. The list() callback was similiarly effected but no autoconf check was added because we do not use the list() callback.
2011-02-11 18:33:01 +00:00
],[
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
dnl #
Linux 4.7 compat: handler->get() takes both dentry and inode Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4665
2016-05-18 20:44:13 +00:00
dnl # 4.4 API change,
dnl # The xattr_handler->get() callback was changed to take a
dnl # attr_handler, and handler_flags argument was removed and
dnl # should be accessed by handler->flags.
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
dnl #
Add configure result for xattr_handler Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4828
2016-07-07 00:07:45 +00:00
AC_MSG_RESULT(no)
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
AC_MSG_CHECKING(
[whether xattr_handler->get() wants xattr_handler])
ZFS_LINUX_TEST_RESULT([xattr_handler_get_xattr_handler], [
Linux 4.4 compat: xattr operations takes xattr_handler The xattr_hander->{list,get,set} were changed to take a xattr_handler, and handler_flags argument was removed and should be accessed by handler->flags. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4021
2015-11-23 23:06:46 +00:00
AC_MSG_RESULT(yes)
Linux 4.7 compat: handler->get() takes both dentry and inode Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4665
2016-05-18 20:44:13 +00:00
AC_DEFINE(HAVE_XATTR_GET_HANDLER, 1,
[xattr_handler->get() wants xattr_handler])
Linux 4.4 compat: xattr operations takes xattr_handler The xattr_hander->{list,get,set} were changed to take a xattr_handler, and handler_flags argument was removed and should be accessed by handler->flags. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4021
2015-11-23 23:06:46 +00:00
],[
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
dnl #
Linux 4.7 compat: handler->get() takes both dentry and inode Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4665
2016-05-18 20:44:13 +00:00
dnl # 2.6.33 API change,
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
dnl # The xattr_handler->get() callback was changed
dnl # to take a dentry instead of an inode, and a
dnl # handler_flags argument was added.
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
dnl #
Linux 4.4 compat: xattr operations takes xattr_handler The xattr_hander->{list,get,set} were changed to take a xattr_handler, and handler_flags argument was removed and should be accessed by handler->flags. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4021
2015-11-23 23:06:46 +00:00
AC_MSG_RESULT(no)
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
AC_MSG_CHECKING(
[whether xattr_handler->get() wants dentry])
ZFS_LINUX_TEST_RESULT([xattr_handler_get_dentry], [
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
AC_MSG_RESULT(yes)
Linux 4.7 compat: handler->get() takes both dentry and inode Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4665
2016-05-18 20:44:13 +00:00
AC_DEFINE(HAVE_XATTR_GET_DENTRY, 1,
[xattr_handler->get() wants dentry])
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
],[
Linux compat: Minimum kernel version 3.10 Increase the minimum supported kernel version from 2.6.32 to 3.10. This removes support for the following Linux enterprise distributions. Distribution | Kernel | End of Life ---------------- | ------ | ------------- Ubuntu 12.04 LTS | 3.2 | Apr 28, 2017 SLES 11 | 3.0 | Mar 32, 2019 RHEL / CentOS 6 | 2.6.32 | Nov 30, 2020 The following changes were made as part of removing support. * Updated `configure` to enforce a minimum kernel version as specified in the META file (Linux-Minimum: 3.10). configure: error: *** Cannot build against kernel version 2.6.32. *** The minimum supported kernel version is 3.10. * Removed all `configure` kABI checks and matching C code for interfaces which solely predate the Linux 3.10 kernel. * Updated all `configure` kABI checks to fail when an interface is missing which was in the 3.10 kernel up to the latest 5.1 kernel. Removed the HAVE_* preprocessor defines for these checks and updated the code to unconditionally use the verified interface. * Inverted the detection logic in several kABI checks to match the new interface as it appears in 3.10 and newer and not the legacy interface. * Consolidated the following checks in to individual files. Due the large number of changes in the checks it made sense to handle this now. It would be desirable to group other related checks in the same fashion, but this as left as future work. - config/kernel-blkdev.m4 - Block device kABI checks - config/kernel-blk-queue.m4 - Block queue kABI checks - config/kernel-bio.m4 - Bio interface kABI checks * Removed the kABI checks for sops->nr_cached_objects() and sops->free_cached_objects(). These interfaces are currently unused. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #9566
2019-11-12 16:59:06 +00:00
ZFS_LINUX_TEST_ERROR([xattr get()])
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
])
Linux 4.4 compat: xattr operations takes xattr_handler The xattr_hander->{list,get,set} were changed to take a xattr_handler, and handler_flags argument was removed and should be accessed by handler->flags. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4021
2015-11-23 23:06:46 +00:00
])
Linux 2.6.33 compat, get/set xattr callbacks The xattr handler prototypes were sanitized with the idea being that the same handlers could be used for multiple methods. The result of this was the inode type was changes to a dentry, and both the get() and set() hooks had a handler_flags argument added. The list() callback was similiarly effected but no autoconf check was added because we do not use the list() callback.
2011-02-11 18:33:01 +00:00
])
])
dnl #
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
dnl # Supported xattr handler set() interfaces checked newest to oldest.
Linux 4.4 compat: xattr operations takes xattr_handler The xattr_hander->{list,get,set} were changed to take a xattr_handler, and handler_flags argument was removed and should be accessed by handler->flags. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4021
2015-11-23 23:06:46 +00:00
dnl #
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
AC_DEFUN([ZFS_AC_KERNEL_SRC_XATTR_HANDLER_SET], [
ZFS_LINUX_TEST_SRC([xattr_handler_set_dentry_inode], [
Linux 2.6.33 compat, get/set xattr callbacks The xattr handler prototypes were sanitized with the idea being that the same handlers could be used for multiple methods. The result of this was the inode type was changes to a dentry, and both the get() and set() hooks had a handler_flags argument added. The list() callback was similiarly effected but no autoconf check was added because we do not use the list() callback.
2011-02-11 18:33:01 +00:00
#include <linux/xattr.h>
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
int set(const struct xattr_handler *handler,
Linux 4.7 compat: handler->set() takes both dentry and inode Counterpart to fd4c7b7, the same approach was taken to resolve the compatibility issue. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Closes #4717 Issue #4665
2016-06-02 01:10:06 +00:00
struct dentry *dentry, struct inode *inode,
const char *name, const void *buffer,
size_t size, int flags)
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
{ return 0; }
Stop runtime pointer modifications in autotools checks c38367c73f592ca9729ba0d5e70b5e3bc67e0745 was meant to eliminate runtime function pointer modifications in autotools checks because they were prone to false negatives on kernels hardened by the PaX project. Unfortunately, I missed the xattr_handler and super_block->s_bdi autotools checks. Recent changes to PaX constified xattr_handler->get/set, which lead me to discover this oversight. Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #1433
2013-09-10 19:13:44 +00:00
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.set = set,
};
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
],[])
ZFS_LINUX_TEST_SRC([xattr_handler_set_xattr_handler], [
#include <linux/xattr.h>
int set(const struct xattr_handler *handler,
struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags)
{ return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.set = set,
};
],[])
ZFS_LINUX_TEST_SRC([xattr_handler_set_dentry], [
#include <linux/xattr.h>
int set(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags,
int handler_flags) { return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.set = set,
};
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_SET], [
dnl #
dnl # 4.7 API change,
dnl # The xattr_handler->set() callback was changed to take both
dnl # dentry and inode.
dnl #
AC_MSG_CHECKING([whether xattr_handler->set() wants dentry and inode])
ZFS_LINUX_TEST_RESULT([xattr_handler_set_dentry_inode], [
Linux 2.6.33 compat, get/set xattr callbacks The xattr handler prototypes were sanitized with the idea being that the same handlers could be used for multiple methods. The result of this was the inode type was changes to a dentry, and both the get() and set() hooks had a handler_flags argument added. The list() callback was similiarly effected but no autoconf check was added because we do not use the list() callback.
2011-02-11 18:33:01 +00:00
AC_MSG_RESULT(yes)
Linux 4.7 compat: handler->set() takes both dentry and inode Counterpart to fd4c7b7, the same approach was taken to resolve the compatibility issue. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Closes #4717 Issue #4665
2016-06-02 01:10:06 +00:00
AC_DEFINE(HAVE_XATTR_SET_DENTRY_INODE, 1,
[xattr_handler->set() wants both dentry and inode])
Linux 2.6.33 compat, get/set xattr callbacks The xattr handler prototypes were sanitized with the idea being that the same handlers could be used for multiple methods. The result of this was the inode type was changes to a dentry, and both the get() and set() hooks had a handler_flags argument added. The list() callback was similiarly effected but no autoconf check was added because we do not use the list() callback.
2011-02-11 18:33:01 +00:00
],[
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
dnl #
Linux 4.7 compat: handler->set() takes both dentry and inode Counterpart to fd4c7b7, the same approach was taken to resolve the compatibility issue. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Closes #4717 Issue #4665
2016-06-02 01:10:06 +00:00
dnl # 4.4 API change,
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
dnl # The xattr_handler->set() callback was changed to take a
Linux 4.7 compat: handler->set() takes both dentry and inode Counterpart to fd4c7b7, the same approach was taken to resolve the compatibility issue. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Closes #4717 Issue #4665
2016-06-02 01:10:06 +00:00
dnl # xattr_handler, and handler_flags argument was removed and
dnl # should be accessed by handler->flags.
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
dnl #
Add configure result for xattr_handler Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4828
2016-07-07 00:07:45 +00:00
AC_MSG_RESULT(no)
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
AC_MSG_CHECKING(
[whether xattr_handler->set() wants xattr_handler])
ZFS_LINUX_TEST_RESULT([xattr_handler_set_xattr_handler], [
Linux 4.4 compat: xattr operations takes xattr_handler The xattr_hander->{list,get,set} were changed to take a xattr_handler, and handler_flags argument was removed and should be accessed by handler->flags. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4021
2015-11-23 23:06:46 +00:00
AC_MSG_RESULT(yes)
Linux 4.7 compat: handler->set() takes both dentry and inode Counterpart to fd4c7b7, the same approach was taken to resolve the compatibility issue. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Closes #4717 Issue #4665
2016-06-02 01:10:06 +00:00
AC_DEFINE(HAVE_XATTR_SET_HANDLER, 1,
[xattr_handler->set() wants xattr_handler])
Linux 4.4 compat: xattr operations takes xattr_handler The xattr_hander->{list,get,set} were changed to take a xattr_handler, and handler_flags argument was removed and should be accessed by handler->flags. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4021
2015-11-23 23:06:46 +00:00
],[
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
dnl #
Linux 4.7 compat: handler->set() takes both dentry and inode Counterpart to fd4c7b7, the same approach was taken to resolve the compatibility issue. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Closes #4717 Issue #4665
2016-06-02 01:10:06 +00:00
dnl # 2.6.33 API change,
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
dnl # The xattr_handler->set() callback was changed
dnl # to take a dentry instead of an inode, and a
dnl # handler_flags argument was added.
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
dnl #
Linux 4.4 compat: xattr operations takes xattr_handler The xattr_hander->{list,get,set} were changed to take a xattr_handler, and handler_flags argument was removed and should be accessed by handler->flags. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4021
2015-11-23 23:06:46 +00:00
AC_MSG_RESULT(no)
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
AC_MSG_CHECKING(
[whether xattr_handler->set() wants dentry])
ZFS_LINUX_TEST_RESULT([xattr_handler_set_dentry], [
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
AC_MSG_RESULT(yes)
Linux 4.7 compat: handler->set() takes both dentry and inode Counterpart to fd4c7b7, the same approach was taken to resolve the compatibility issue. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Closes #4717 Issue #4665
2016-06-02 01:10:06 +00:00
AC_DEFINE(HAVE_XATTR_SET_DENTRY, 1,
[xattr_handler->set() wants dentry])
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
],[
Linux compat: Minimum kernel version 3.10 Increase the minimum supported kernel version from 2.6.32 to 3.10. This removes support for the following Linux enterprise distributions. Distribution | Kernel | End of Life ---------------- | ------ | ------------- Ubuntu 12.04 LTS | 3.2 | Apr 28, 2017 SLES 11 | 3.0 | Mar 32, 2019 RHEL / CentOS 6 | 2.6.32 | Nov 30, 2020 The following changes were made as part of removing support. * Updated `configure` to enforce a minimum kernel version as specified in the META file (Linux-Minimum: 3.10). configure: error: *** Cannot build against kernel version 2.6.32. *** The minimum supported kernel version is 3.10. * Removed all `configure` kABI checks and matching C code for interfaces which solely predate the Linux 3.10 kernel. * Updated all `configure` kABI checks to fail when an interface is missing which was in the 3.10 kernel up to the latest 5.1 kernel. Removed the HAVE_* preprocessor defines for these checks and updated the code to unconditionally use the verified interface. * Inverted the detection logic in several kABI checks to match the new interface as it appears in 3.10 and newer and not the legacy interface. * Consolidated the following checks in to individual files. Due the large number of changes in the checks it made sense to handle this now. It would be desirable to group other related checks in the same fashion, but this as left as future work. - config/kernel-blkdev.m4 - Block device kABI checks - config/kernel-blk-queue.m4 - Block queue kABI checks - config/kernel-bio.m4 - Bio interface kABI checks * Removed the kABI checks for sops->nr_cached_objects() and sops->free_cached_objects(). These interfaces are currently unused. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #9566
2019-11-12 16:59:06 +00:00
ZFS_LINUX_TEST_ERROR([xattr set()])
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
])
Linux 4.4 compat: xattr operations takes xattr_handler The xattr_hander->{list,get,set} were changed to take a xattr_handler, and handler_flags argument was removed and should be accessed by handler->flags. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4021
2015-11-23 23:06:46 +00:00
])
Linux 2.6.33 compat, get/set xattr callbacks The xattr handler prototypes were sanitized with the idea being that the same handlers could be used for multiple methods. The result of this was the inode type was changes to a dentry, and both the get() and set() hooks had a handler_flags argument added. The list() callback was similiarly effected but no autoconf check was added because we do not use the list() callback.
2011-02-11 18:33:01 +00:00
])
])
Posix ACL Support This change adds support for Posix ACLs by storing them as an xattr which is common practice for many Linux file systems. Since the Posix ACL is stored as an xattr it will not overwrite any existing ZFS/NFSv4 ACLs which may have been set. The Posix ACL will also be non-functional on other platforms although it may be visible as an xattr if that platform understands SA based xattrs. By default Posix ACLs are disabled but they may be enabled with the new 'aclmode=noacl|posixacl' property. Set the property to 'posixacl' to enable them. If ZFS/NFSv4 ACL support is ever added an appropriate acltype will be added. This change passes the POSIX Test Suite cleanly with the exception of xacl/00.t test 45 which is incorrect for Linux (Ext4 fails too). http://www.tuxera.com/community/posix-test-suite/ Signed-off-by: Massimo Maggi <me@massimo-maggi.eu> Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #170
2013-10-28 16:22:15 +00:00
dnl #
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
dnl # Supported xattr handler list() interfaces checked newest to oldest.
Linux 4.4 compat: xattr operations takes xattr_handler The xattr_hander->{list,get,set} were changed to take a xattr_handler, and handler_flags argument was removed and should be accessed by handler->flags. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4021
2015-11-23 23:06:46 +00:00
dnl #
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
AC_DEFUN([ZFS_AC_KERNEL_SRC_XATTR_HANDLER_LIST], [
ZFS_LINUX_TEST_SRC([xattr_handler_list_simple], [
Posix ACL Support This change adds support for Posix ACLs by storing them as an xattr which is common practice for many Linux file systems. Since the Posix ACL is stored as an xattr it will not overwrite any existing ZFS/NFSv4 ACLs which may have been set. The Posix ACL will also be non-functional on other platforms although it may be visible as an xattr if that platform understands SA based xattrs. By default Posix ACLs are disabled but they may be enabled with the new 'aclmode=noacl|posixacl' property. Set the property to 'posixacl' to enable them. If ZFS/NFSv4 ACL support is ever added an appropriate acltype will be added. This change passes the POSIX Test Suite cleanly with the exception of xacl/00.t test 45 which is incorrect for Linux (Ext4 fails too). http://www.tuxera.com/community/posix-test-suite/ Signed-off-by: Massimo Maggi <me@massimo-maggi.eu> Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #170
2013-10-28 16:22:15 +00:00
#include <linux/xattr.h>
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
bool list(struct dentry *dentry) { return 0; }
Posix ACL Support This change adds support for Posix ACLs by storing them as an xattr which is common practice for many Linux file systems. Since the Posix ACL is stored as an xattr it will not overwrite any existing ZFS/NFSv4 ACLs which may have been set. The Posix ACL will also be non-functional on other platforms although it may be visible as an xattr if that platform understands SA based xattrs. By default Posix ACLs are disabled but they may be enabled with the new 'aclmode=noacl|posixacl' property. Set the property to 'posixacl' to enable them. If ZFS/NFSv4 ACL support is ever added an appropriate acltype will be added. This change passes the POSIX Test Suite cleanly with the exception of xacl/00.t test 45 which is incorrect for Linux (Ext4 fails too). http://www.tuxera.com/community/posix-test-suite/ Signed-off-by: Massimo Maggi <me@massimo-maggi.eu> Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #170
2013-10-28 16:22:15 +00:00
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.list = list,
};
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
],[])
ZFS_LINUX_TEST_SRC([xattr_handler_list_xattr_handler], [
#include <linux/xattr.h>
size_t list(const struct xattr_handler *handler,
struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len) { return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.list = list,
};
],[])
ZFS_LINUX_TEST_SRC([xattr_handler_list_dentry], [
#include <linux/xattr.h>
size_t list(struct dentry *dentry,
char *list, size_t list_size,
const char *name, size_t name_len,
int handler_flags) { return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.list = list,
};
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_LIST], [
dnl # 4.5 API change,
dnl # The xattr_handler->list() callback was changed to take only a
dnl # dentry and it only needs to return if it's accessible.
AC_MSG_CHECKING([whether xattr_handler->list() wants simple])
ZFS_LINUX_TEST_RESULT([xattr_handler_list_simple], [
Posix ACL Support This change adds support for Posix ACLs by storing them as an xattr which is common practice for many Linux file systems. Since the Posix ACL is stored as an xattr it will not overwrite any existing ZFS/NFSv4 ACLs which may have been set. The Posix ACL will also be non-functional on other platforms although it may be visible as an xattr if that platform understands SA based xattrs. By default Posix ACLs are disabled but they may be enabled with the new 'aclmode=noacl|posixacl' property. Set the property to 'posixacl' to enable them. If ZFS/NFSv4 ACL support is ever added an appropriate acltype will be added. This change passes the POSIX Test Suite cleanly with the exception of xacl/00.t test 45 which is incorrect for Linux (Ext4 fails too). http://www.tuxera.com/community/posix-test-suite/ Signed-off-by: Massimo Maggi <me@massimo-maggi.eu> Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #170
2013-10-28 16:22:15 +00:00
AC_MSG_RESULT(yes)
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
AC_DEFINE(HAVE_XATTR_LIST_SIMPLE, 1,
[xattr_handler->list() wants simple])
Posix ACL Support This change adds support for Posix ACLs by storing them as an xattr which is common practice for many Linux file systems. Since the Posix ACL is stored as an xattr it will not overwrite any existing ZFS/NFSv4 ACLs which may have been set. The Posix ACL will also be non-functional on other platforms although it may be visible as an xattr if that platform understands SA based xattrs. By default Posix ACLs are disabled but they may be enabled with the new 'aclmode=noacl|posixacl' property. Set the property to 'posixacl' to enable them. If ZFS/NFSv4 ACL support is ever added an appropriate acltype will be added. This change passes the POSIX Test Suite cleanly with the exception of xacl/00.t test 45 which is incorrect for Linux (Ext4 fails too). http://www.tuxera.com/community/posix-test-suite/ Signed-off-by: Massimo Maggi <me@massimo-maggi.eu> Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #170
2013-10-28 16:22:15 +00:00
],[
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
dnl #
dnl # 4.4 API change,
dnl # The xattr_handler->list() callback was changed to take a
dnl # xattr_handler, and handler_flags argument was removed
dnl # and should be accessed by handler->flags.
dnl #
Posix ACL Support This change adds support for Posix ACLs by storing them as an xattr which is common practice for many Linux file systems. Since the Posix ACL is stored as an xattr it will not overwrite any existing ZFS/NFSv4 ACLs which may have been set. The Posix ACL will also be non-functional on other platforms although it may be visible as an xattr if that platform understands SA based xattrs. By default Posix ACLs are disabled but they may be enabled with the new 'aclmode=noacl|posixacl' property. Set the property to 'posixacl' to enable them. If ZFS/NFSv4 ACL support is ever added an appropriate acltype will be added. This change passes the POSIX Test Suite cleanly with the exception of xacl/00.t test 45 which is incorrect for Linux (Ext4 fails too). http://www.tuxera.com/community/posix-test-suite/ Signed-off-by: Massimo Maggi <me@massimo-maggi.eu> Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #170
2013-10-28 16:22:15 +00:00
AC_MSG_RESULT(no)
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
AC_MSG_CHECKING(
[whether xattr_handler->list() wants xattr_handler])
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
ZFS_LINUX_TEST_RESULT([xattr_handler_list_xattr_handler], [
Linux 4.4 compat: xattr operations takes xattr_handler The xattr_hander->{list,get,set} were changed to take a xattr_handler, and handler_flags argument was removed and should be accessed by handler->flags. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4021
2015-11-23 23:06:46 +00:00
AC_MSG_RESULT(yes)
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
AC_DEFINE(HAVE_XATTR_LIST_HANDLER, 1,
Linux 4.4 compat: xattr operations takes xattr_handler The xattr_hander->{list,get,set} were changed to take a xattr_handler, and handler_flags argument was removed and should be accessed by handler->flags. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4021
2015-11-23 23:06:46 +00:00
[xattr_handler->list() wants xattr_handler])
],[
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
dnl #
dnl # 2.6.33 API change,
dnl # The xattr_handler->list() callback was changed
dnl # to take a dentry instead of an inode, and a
dnl # handler_flags argument was added.
dnl #
Linux 4.4 compat: xattr operations takes xattr_handler The xattr_hander->{list,get,set} were changed to take a xattr_handler, and handler_flags argument was removed and should be accessed by handler->flags. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4021
2015-11-23 23:06:46 +00:00
AC_MSG_RESULT(no)
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
AC_MSG_CHECKING(
[whether xattr_handler->list() wants dentry])
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
ZFS_LINUX_TEST_RESULT([xattr_handler_list_dentry], [
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_LIST_DENTRY, 1,
[xattr_handler->list() wants dentry])
],[
Linux compat: Minimum kernel version 3.10 Increase the minimum supported kernel version from 2.6.32 to 3.10. This removes support for the following Linux enterprise distributions. Distribution | Kernel | End of Life ---------------- | ------ | ------------- Ubuntu 12.04 LTS | 3.2 | Apr 28, 2017 SLES 11 | 3.0 | Mar 32, 2019 RHEL / CentOS 6 | 2.6.32 | Nov 30, 2020 The following changes were made as part of removing support. * Updated `configure` to enforce a minimum kernel version as specified in the META file (Linux-Minimum: 3.10). configure: error: *** Cannot build against kernel version 2.6.32. *** The minimum supported kernel version is 3.10. * Removed all `configure` kABI checks and matching C code for interfaces which solely predate the Linux 3.10 kernel. * Updated all `configure` kABI checks to fail when an interface is missing which was in the 3.10 kernel up to the latest 5.1 kernel. Removed the HAVE_* preprocessor defines for these checks and updated the code to unconditionally use the verified interface. * Inverted the detection logic in several kABI checks to match the new interface as it appears in 3.10 and newer and not the legacy interface. * Consolidated the following checks in to individual files. Due the large number of changes in the checks it made sense to handle this now. It would be desirable to group other related checks in the same fashion, but this as left as future work. - config/kernel-blkdev.m4 - Block device kABI checks - config/kernel-blk-queue.m4 - Block queue kABI checks - config/kernel-bio.m4 - Bio interface kABI checks * Removed the kABI checks for sops->nr_cached_objects() and sops->free_cached_objects(). These interfaces are currently unused. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #9566
2019-11-12 16:59:06 +00:00
ZFS_LINUX_TEST_ERROR([xattr list()])
Linux 4.5 compat: xattr list handler The registered xattr .list handler was simplified in the 4.5 kernel to only perform a permission check. Given a dentry for the file it must return a boolean indicating if the name is visible. This differs slightly from the previous APIs which also required the function to copy the name in to the provided list and return its size. That is now all the responsibility of the caller. This should be straight forward change to make to ZoL since we've always required the caller to make the copy. However, this was slightly complicated by the need to support 3 older APIs. Yes, between 2.6.32 and 4.5 there are 4 versions of this interface! Therefore, while the functional change in this patch is small it includes significant cleanup to make the code understandable and maintainable. These changes include: - Improved configure checks for .list, .get, and .set interfaces. - Interfaces checked from newest to oldest. - Strict checking for each possible known interface. - Configure fails when no known interface is available. - HAVE_*_XATTR_LIST renamed HAVE_XATTR_LIST_* for consistency with similar iops and fops configure checks. - POSIX_ACL_XATTR_{DEFAULT|ACCESS} were removed forcing callers to move to their replacements, XATTR_NAME_POSIX_ACL_{DEFAULT|ACCESS}. Compatibility wrapper were added for old kernels. - ZPL_XATTR_LIST_WRAPPER added which behaves the same as the existing ZPL_XATTR_{GET|SET} WRAPPERs. Only the inode is guaranteed to be a valid pointer, passing NULL for the 'list' and 'name' variables is allowed and must be checked for. All .list functions were updated to use the wrapper to aid readability. - zpl_xattr_filldir() updated to use the .list function for its permission check which is consistent with the updated Linux 4.5 interface. If a .list function is registered it should return 0 to indicate a name should be skipped, if there is no registered function the name will be added. - Additional documentation from xattr(7) describing the correct behavior for each namespace was added before the relevant handlers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Issue #4228
2016-01-14 23:01:24 +00:00
])
Linux 4.4 compat: xattr operations takes xattr_handler The xattr_hander->{list,get,set} were changed to take a xattr_handler, and handler_flags argument was removed and should be accessed by handler->flags. Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4021
2015-11-23 23:06:46 +00:00
])
Posix ACL Support This change adds support for Posix ACLs by storing them as an xattr which is common practice for many Linux file systems. Since the Posix ACL is stored as an xattr it will not overwrite any existing ZFS/NFSv4 ACLs which may have been set. The Posix ACL will also be non-functional on other platforms although it may be visible as an xattr if that platform understands SA based xattrs. By default Posix ACLs are disabled but they may be enabled with the new 'aclmode=noacl|posixacl' property. Set the property to 'posixacl' to enable them. If ZFS/NFSv4 ACL support is ever added an appropriate acltype will be added. This change passes the POSIX Test Suite cleanly with the exception of xacl/00.t test 45 which is incorrect for Linux (Ext4 fails too). http://www.tuxera.com/community/posix-test-suite/ Signed-off-by: Massimo Maggi <me@massimo-maggi.eu> Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #170
2013-10-28 16:22:15 +00:00
])
])
dnl #
dnl # 3.7 API change,
dnl # The posix_acl_{from,to}_xattr functions gained a new
dnl # parameter: user_ns
dnl #
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
AC_DEFUN([ZFS_AC_KERNEL_SRC_POSIX_ACL_FROM_XATTR_USERNS], [
ZFS_LINUX_TEST_SRC([posix_acl_from_xattr_userns], [
Posix ACL Support This change adds support for Posix ACLs by storing them as an xattr which is common practice for many Linux file systems. Since the Posix ACL is stored as an xattr it will not overwrite any existing ZFS/NFSv4 ACLs which may have been set. The Posix ACL will also be non-functional on other platforms although it may be visible as an xattr if that platform understands SA based xattrs. By default Posix ACLs are disabled but they may be enabled with the new 'aclmode=noacl|posixacl' property. Set the property to 'posixacl' to enable them. If ZFS/NFSv4 ACL support is ever added an appropriate acltype will be added. This change passes the POSIX Test Suite cleanly with the exception of xacl/00.t test 45 which is incorrect for Linux (Ext4 fails too). http://www.tuxera.com/community/posix-test-suite/ Signed-off-by: Massimo Maggi <me@massimo-maggi.eu> Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #170
2013-10-28 16:22:15 +00:00
#include <linux/cred.h>
#include <linux/fs.h>
#include <linux/posix_acl_xattr.h>
],[
posix_acl_from_xattr(&init_user_ns, NULL, 0);
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
])
])
AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_FROM_XATTR_USERNS], [
AC_MSG_CHECKING([whether posix_acl_from_xattr() needs user_ns])
ZFS_LINUX_TEST_RESULT([posix_acl_from_xattr_userns], [
Posix ACL Support This change adds support for Posix ACLs by storing them as an xattr which is common practice for many Linux file systems. Since the Posix ACL is stored as an xattr it will not overwrite any existing ZFS/NFSv4 ACLs which may have been set. The Posix ACL will also be non-functional on other platforms although it may be visible as an xattr if that platform understands SA based xattrs. By default Posix ACLs are disabled but they may be enabled with the new 'aclmode=noacl|posixacl' property. Set the property to 'posixacl' to enable them. If ZFS/NFSv4 ACL support is ever added an appropriate acltype will be added. This change passes the POSIX Test Suite cleanly with the exception of xacl/00.t test 45 which is incorrect for Linux (Ext4 fails too). http://www.tuxera.com/community/posix-test-suite/ Signed-off-by: Massimo Maggi <me@massimo-maggi.eu> Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #170
2013-10-28 16:22:15 +00:00
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_POSIX_ACL_FROM_XATTR_USERNS, 1,
[posix_acl_from_xattr() needs user_ns])
],[
Linux compat: Minimum kernel version 3.10 Increase the minimum supported kernel version from 2.6.32 to 3.10. This removes support for the following Linux enterprise distributions. Distribution | Kernel | End of Life ---------------- | ------ | ------------- Ubuntu 12.04 LTS | 3.2 | Apr 28, 2017 SLES 11 | 3.0 | Mar 32, 2019 RHEL / CentOS 6 | 2.6.32 | Nov 30, 2020 The following changes were made as part of removing support. * Updated `configure` to enforce a minimum kernel version as specified in the META file (Linux-Minimum: 3.10). configure: error: *** Cannot build against kernel version 2.6.32. *** The minimum supported kernel version is 3.10. * Removed all `configure` kABI checks and matching C code for interfaces which solely predate the Linux 3.10 kernel. * Updated all `configure` kABI checks to fail when an interface is missing which was in the 3.10 kernel up to the latest 5.1 kernel. Removed the HAVE_* preprocessor defines for these checks and updated the code to unconditionally use the verified interface. * Inverted the detection logic in several kABI checks to match the new interface as it appears in 3.10 and newer and not the legacy interface. * Consolidated the following checks in to individual files. Due the large number of changes in the checks it made sense to handle this now. It would be desirable to group other related checks in the same fashion, but this as left as future work. - config/kernel-blkdev.m4 - Block device kABI checks - config/kernel-blk-queue.m4 - Block queue kABI checks - config/kernel-bio.m4 - Bio interface kABI checks * Removed the kABI checks for sops->nr_cached_objects() and sops->free_cached_objects(). These interfaces are currently unused. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #9566
2019-11-12 16:59:06 +00:00
ZFS_LINUX_TEST_ERROR([posix_acl_from_xattr()])
Posix ACL Support This change adds support for Posix ACLs by storing them as an xattr which is common practice for many Linux file systems. Since the Posix ACL is stored as an xattr it will not overwrite any existing ZFS/NFSv4 ACLs which may have been set. The Posix ACL will also be non-functional on other platforms although it may be visible as an xattr if that platform understands SA based xattrs. By default Posix ACLs are disabled but they may be enabled with the new 'aclmode=noacl|posixacl' property. Set the property to 'posixacl' to enable them. If ZFS/NFSv4 ACL support is ever added an appropriate acltype will be added. This change passes the POSIX Test Suite cleanly with the exception of xacl/00.t test 45 which is incorrect for Linux (Ext4 fails too). http://www.tuxera.com/community/posix-test-suite/ Signed-off-by: Massimo Maggi <me@massimo-maggi.eu> Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #170
2013-10-28 16:22:15 +00:00
])
])
Perform KABI checks in parallel Reduce the time required for ./configure to perform the needed KABI checks by allowing kbuild to compile multiple test cases in parallel. This was accomplished by splitting each test's source code from the logic handling whether that code could be compiled or not. By introducing this split it's possible to minimize the number of times kbuild needs to be invoked. As importantly, it means all of the tests can be built in parallel. This does require a little extra care since we expect some tests to fail, so the --keep-going (-k) option must be provided otherwise some tests may not get compiled. Furthermore, since a failure during the kbuild modpost phase will result in an early exit; the final linking phase is limited to tests which passed the initial compilation and produced an object file. Once everything has been built the configure script proceeds as previously. The only significant difference is that it now merely needs to test for the existence of a .ko file to determine the result of a given test. This vastly speeds up the entire process. New test cases should use ZFS_LINUX_TEST_SRC to declare their test source code and ZFS_LINUX_TEST_RESULT to check the result. All of the existing kernel-*.m4 files have been updated accordingly, see config/kernel-current-time.m4 for a basic example. The legacy ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases but it's use is not encouraged. master (secs) patched (secs) ------------- ---------------- autogen.sh 61 68 configure 137 24 (~17% of current run time) make -j $(nproc) 44 44 make rpms 287 150 Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #8547 Closes #9132 Closes #9341
2019-10-01 19:50:34 +00:00
dnl #
dnl # 4.9 API change,
dnl # iops->{set,get,remove}xattr and generic_{set,get,remove}xattr are
dnl # removed. xattr operations will directly go through sb->s_xattr.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_GENERIC_SETXATTR], [
ZFS_LINUX_TEST_SRC([have_generic_setxattr], [
#include <linux/fs.h>
#include <linux/xattr.h>
static const struct inode_operations
iops __attribute__ ((unused)) = {
.setxattr = generic_setxattr
};
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_GENERIC_SETXATTR], [
AC_MSG_CHECKING([whether generic_setxattr() exists])
ZFS_LINUX_TEST_RESULT([have_generic_setxattr], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GENERIC_SETXATTR, 1,
[generic_setxattr() exists])
],[
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_XATTR], [
ZFS_AC_KERNEL_SRC_CONST_XATTR_HANDLER
ZFS_AC_KERNEL_SRC_XATTR_HANDLER_NAME
ZFS_AC_KERNEL_SRC_XATTR_HANDLER_GET
ZFS_AC_KERNEL_SRC_XATTR_HANDLER_SET
ZFS_AC_KERNEL_SRC_XATTR_HANDLER_LIST
ZFS_AC_KERNEL_SRC_POSIX_ACL_FROM_XATTR_USERNS
ZFS_AC_KERNEL_SRC_GENERIC_SETXATTR
])
AC_DEFUN([ZFS_AC_KERNEL_XATTR], [
ZFS_AC_KERNEL_CONST_XATTR_HANDLER
ZFS_AC_KERNEL_XATTR_HANDLER_NAME
ZFS_AC_KERNEL_XATTR_HANDLER_GET
ZFS_AC_KERNEL_XATTR_HANDLER_SET
ZFS_AC_KERNEL_XATTR_HANDLER_LIST
ZFS_AC_KERNEL_POSIX_ACL_FROM_XATTR_USERNS
ZFS_AC_KERNEL_GENERIC_SETXATTR
])
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