d4dc53dad2
Linux kernel 6.3 changed a bunch of APIs to use the dedicated idmap type for mounts (struct mnt_idmap), we need to detect these changes and make zfs work with the new APIs. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Youzhong Yang <yyang@mathworks.com> Closes #14682
134 lines
3.9 KiB
Plaintext
134 lines
3.9 KiB
Plaintext
AC_DEFUN([ZFS_AC_KERNEL_SRC_RENAME], [
|
|
dnl #
|
|
dnl # 3.9 (to 4.9) API change,
|
|
dnl #
|
|
dnl # A new version of iops->rename() was added (rename2) that takes a flag
|
|
dnl # argument (to support renameat2). However this separate function was
|
|
dnl # merged back into iops->rename() in Linux 4.9.
|
|
dnl #
|
|
ZFS_LINUX_TEST_SRC([inode_operations_rename2], [
|
|
#include <linux/fs.h>
|
|
int rename2_fn(struct inode *sip, struct dentry *sdp,
|
|
struct inode *tip, struct dentry *tdp,
|
|
unsigned int flags) { return 0; }
|
|
|
|
static const struct inode_operations
|
|
iops __attribute__ ((unused)) = {
|
|
.rename2 = rename2_fn,
|
|
};
|
|
],[])
|
|
|
|
dnl #
|
|
dnl # 4.9 API change,
|
|
dnl #
|
|
dnl # iops->rename2() merged into iops->rename(), and iops->rename() now
|
|
dnl # wants flags.
|
|
dnl #
|
|
ZFS_LINUX_TEST_SRC([inode_operations_rename_flags], [
|
|
#include <linux/fs.h>
|
|
int rename_fn(struct inode *sip, struct dentry *sdp,
|
|
struct inode *tip, struct dentry *tdp,
|
|
unsigned int flags) { return 0; }
|
|
|
|
static const struct inode_operations
|
|
iops __attribute__ ((unused)) = {
|
|
.rename = rename_fn,
|
|
};
|
|
],[])
|
|
|
|
dnl #
|
|
dnl # EL7 compatibility
|
|
dnl #
|
|
dnl # EL7 has backported renameat2 support, but it's done by defining a
|
|
dnl # separate iops wrapper structure that takes the .renameat2 function.
|
|
dnl #
|
|
ZFS_LINUX_TEST_SRC([dir_inode_operations_wrapper_rename2], [
|
|
#include <linux/fs.h>
|
|
int rename2_fn(struct inode *sip, struct dentry *sdp,
|
|
struct inode *tip, struct dentry *tdp,
|
|
unsigned int flags) { return 0; }
|
|
|
|
static const struct inode_operations_wrapper
|
|
iops __attribute__ ((unused)) = {
|
|
.rename2 = rename2_fn,
|
|
};
|
|
],[])
|
|
|
|
dnl #
|
|
dnl # 5.12 API change,
|
|
dnl #
|
|
dnl # Linux 5.12 introduced passing struct user_namespace* as the first
|
|
dnl # argument of the rename() and other inode_operations members.
|
|
dnl #
|
|
ZFS_LINUX_TEST_SRC([inode_operations_rename_userns], [
|
|
#include <linux/fs.h>
|
|
int rename_fn(struct user_namespace *user_ns, struct inode *sip,
|
|
struct dentry *sdp, struct inode *tip, struct dentry *tdp,
|
|
unsigned int flags) { return 0; }
|
|
|
|
static const struct inode_operations
|
|
iops __attribute__ ((unused)) = {
|
|
.rename = rename_fn,
|
|
};
|
|
],[])
|
|
|
|
dnl #
|
|
dnl # 6.3 API change - the first arg is now struct mnt_idmap*
|
|
dnl #
|
|
ZFS_LINUX_TEST_SRC([inode_operations_rename_mnt_idmap], [
|
|
#include <linux/fs.h>
|
|
int rename_fn(struct mnt_idmap *idmap, struct inode *sip,
|
|
struct dentry *sdp, struct inode *tip, struct dentry *tdp,
|
|
unsigned int flags) { return 0; }
|
|
|
|
static const struct inode_operations
|
|
iops __attribute__ ((unused)) = {
|
|
.rename = rename_fn,
|
|
};
|
|
],[])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_RENAME], [
|
|
AC_MSG_CHECKING([whether iops->rename() takes struct mnt_idmap*])
|
|
ZFS_LINUX_TEST_RESULT([inode_operations_rename_mnt_idmap], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_IOPS_RENAME_IDMAP, 1,
|
|
[iops->rename() takes struct mnt_idmap*])
|
|
],[
|
|
AC_MSG_CHECKING([whether iops->rename() takes struct user_namespace*])
|
|
ZFS_LINUX_TEST_RESULT([inode_operations_rename_userns], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_IOPS_RENAME_USERNS, 1,
|
|
[iops->rename() takes struct user_namespace*])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
|
|
AC_MSG_CHECKING([whether iops->rename2() exists])
|
|
ZFS_LINUX_TEST_RESULT([inode_operations_rename2], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_RENAME2, 1, [iops->rename2() exists])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
|
|
AC_MSG_CHECKING([whether iops->rename() wants flags])
|
|
ZFS_LINUX_TEST_RESULT([inode_operations_rename_flags], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_RENAME_WANTS_FLAGS, 1,
|
|
[iops->rename() wants flags])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
|
|
AC_MSG_CHECKING([whether struct inode_operations_wrapper takes .rename2()])
|
|
ZFS_LINUX_TEST_RESULT([dir_inode_operations_wrapper_rename2], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_RENAME2_OPERATIONS_WRAPPER, 1,
|
|
[struct inode_operations_wrapper takes .rename2()])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
])
|
|
])
|
|
])
|
|
])
|