[XFS] remove restricted chown parameter from xfs linux

On Linux all filesystems are supposed to be operating under Posix'
restricted chown. Restricted chown means it restricts chown to the owner
unless you have CAP_FOWNER.

NOTE: that 2 files outside of fs/xfs have been modified too for this
change.

Reviewed-by: Dave Chinner <david@fromorbit.com>

SGI-PV: 988919

SGI-Modid: xfs-linux-melb:xfs-kern:32413a

Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>

1 files changed, 2 insertions, 11 deletions

diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 34a1982ed6dc..c45ea278ef41 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -232,10 +232,6 @@ xfs_setattr(
 
         /*
          * Change file ownership.  Must be the owner or privileged.
-         * If the system was configured with the "restricted_chown"
-         * option, the owner is not permitted to give away the file,
-         * and can change the group id only to a group of which he
-         * or she is a member.
          */
         if (mask & (ATTR_UID|ATTR_GID)) {
                 /*
@@ -259,9 +255,8 @@ xfs_setattr(
                  * shall be equal to either the group ID or one of the
                  * supplementary group IDs of the calling process.
                  */
-                if (restricted_chown &&
-                    (iuid != uid || (igid != gid &&
-                                     !in_group_p((gid_t)gid))) &&
+                if ((iuid != uid ||
+                     (igid != gid && !in_group_p((gid_t)gid))) &&
                     !capable(CAP_CHOWN)) {
                         code = XFS_ERROR(EPERM);
                         goto error_return;
@@ -455,10 +450,6 @@ xfs_setattr(
 
         /*
          * Change file ownership.  Must be the owner or privileged.
-         * If the system was configured with the "restricted_chown"
-         * option, the owner is not permitted to give away the file,
-         * and can change the group id only to a group of which he
-         * or she is a member.
          */
         if (mask & (ATTR_UID|ATTR_GID)) {
                 /*