CRED: Wrap task credential accesses in the XFS filesystem

Wrap access to task credentials so that they can be separated more easily from
the task_struct during the introduction of COW creds.

Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().

Change some task->e?[ug]id to task_e?[ug]id().  In some places it makes more
sense to use RCU directly rather than a convenient wrapper; these will be
addressed by later patches.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/fs/xfs/linux-2.6/xfs_cred.h b/fs/xfs/linux-2.6/xfs_cred.h
index 98da2199bc23..e279d00779f4 100644
--- a/fs/xfs/linux-2.6/xfs_cred.h
+++ b/fs/xfs/linux-2.6/xfs_cred.h
@@ -24,7 +24,7 @@
  * Credentials
  */
 typedef struct cred {
-        /* EMPTY */
+       /* EMPTY */
 } cred_t;
 
 #endif  /* __XFS_CRED_H__ */
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index d25694e8cd62..f1bd6c36e6fe 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -1006,7 +1006,7 @@ xfs_ioctl_setattr(
          * to the file owner ID, except in cases where the
          * CAP_FSETID capability is applicable.
          */
-        if (current->fsuid != ip->i_d.di_uid && !capable(CAP_FOWNER)) {
+        if (current_fsuid() != ip->i_d.di_uid && !capable(CAP_FOWNER)) {
                 code = XFS_ERROR(EPERM);
                 goto error_return;
         }