freebsd-dev/config/kernel-is_owner_or_cap.m4
Richard Yao 3b4f425a5a Refactor inode_owner_or_capable() autotools check
We need inode_owner_or_capable() for ZFS file attributes in addition to
xattrs, so it should go into its own file. This moves it into its own
file and changes it to be more comprehensive. It will now fail if no
known good API is detected.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #1691
2014-05-01 10:06:49 -07:00

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dnl #
dnl # 2.6.39 API change,
dnl # The is_owner_or_cap() macro was renamed to inode_owner_or_capable(),
dnl # This is used for permission checks in the xattr and file attribute call
dnl # paths.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INODE_OWNER_OR_CAPABLE], [
AC_MSG_CHECKING([whether inode_owner_or_capable() exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
],[
struct inode *ip = NULL;
(void) inode_owner_or_capable(ip);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE, 1,
[inode_owner_or_capable() exists])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether is_owner_or_cap() exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
#include <linux/sched.h>
],[
struct inode *ip = NULL;
(void) is_owner_or_cap(ip);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_IS_OWNER_OR_CAP, 1,
[is_owner_or_cap() exists])
],[
AC_MSG_ERROR(no - Please file a bug report at
https://github.com/zfsonlinux/zfs/issues/new)
])
])
])