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Linux 4.8 compat: posix_acl_valid()

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The posix_acl_valid() function has been updated to require a
user namespace.  Filesystem callers should normally provide the
user_ns from the super block associcated with the ACL; the
zpl_posix_acl_valid() wrapper has been added for this purpose.
See https://github.com/torvalds/linux/commit/0d4d717f for
complete details.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Nikolay Borisov <n.borisov.lkml@gmail.com>
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Closes #4922
This commit is contained in:
Brian Behlendorf
2016-08-02 11:11:45 -07:00
parent e85a6396b0
commit 4b908d3220
4 changed files with 39 additions and 2 deletions
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include/linux/vfs_compat.h
+12
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@@ -316,6 +316,18 @@ typedef umode_t zpl_equivmode_t;
#else
typedef mode_t zpl_equivmode_t;
#endif /* HAVE_POSIX_ACL_EQUIV_MODE_UMODE_T */
/*
* 4.8 API change,
* posix_acl_valid() now must be passed a namespace, the namespace from
* from super block associated with the given inode is used for this purpose.
*/
#ifdef HAVE_POSIX_ACL_VALID_WITH_NS
#define zpl_posix_acl_valid(ip, acl) posix_acl_valid(ip->i_sb->s_user_ns, acl)
#else
#define zpl_posix_acl_valid(ip, acl) posix_acl_valid(acl)
#endif
#endif /* CONFIG_FS_POSIX_ACL */
/*