CRED: Wrap task credential accesses in the UBIFS 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: Artem Bityutskiy <dedekind@infradead.org>
Cc: Adrian Hunter <ext-adrian.hunter@nokia.com>
Cc: linux-mtd@lists.infradead.org
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 526c01ec8003..856189014a3a 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -104,13 +104,13 @@ struct inode *ubifs_new_inode(struct ubifs_info *c, const struct inode *dir,
          */
         inode->i_flags |= (S_NOCMTIME);
 
-        inode->i_uid = current->fsuid;
+        inode->i_uid = current_fsuid();
         if (dir->i_mode & S_ISGID) {
                 inode->i_gid = dir->i_gid;
                 if (S_ISDIR(mode))
                         mode |= S_ISGID;
         } else
-                inode->i_gid = current->fsgid;
+                inode->i_gid = current_fsgid();
         inode->i_mode = mode;
         inode->i_mtime = inode->i_atime = inode->i_ctime =
                          ubifs_current_time(inode);