CRED: Wrap task credential accesses in the Ext3 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>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: adilger@sun.com
Cc: linux-ext4@vger.kernel.org
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index 47b678d73e7a..490bd0ed7896 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -539,7 +539,7 @@ got:
                 percpu_counter_inc(&sbi->s_dirs_counter);
         sb->s_dirt = 1;
 
-        inode->i_uid = current->fsuid;
+        inode->i_uid = current_fsuid();
         if (test_opt (sb, GRPID))
                 inode->i_gid = dir->i_gid;
         else if (dir->i_mode & S_ISGID) {
@@ -547,7 +547,7 @@ got:
                 if (S_ISDIR(mode))
                         mode |= S_ISGID;
         } else
-                inode->i_gid = current->fsgid;
+                inode->i_gid = current_fsgid();
         inode->i_mode = mode;
 
         inode->i_ino = ino;