CRED: Wrap current->cred and a few other accessors

Wrap current->cred and a few other accessors to hide their actual
implementation.

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

1 files changed, 3 insertions, 4 deletions

diff --git a/fs/file_table.c b/fs/file_table.c
index 3152b53cfab0..bc4563fe791d 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -94,7 +94,7 @@ int proc_nr_files(ctl_table *table, int write, struct file *filp,
  */
 struct file *get_empty_filp(void)
 {
-        struct task_struct *tsk;
+        const struct cred *cred = current_cred();
         static int old_max;
         struct file * f;
 
@@ -118,12 +118,11 @@ struct file *get_empty_filp(void)
         if (security_file_alloc(f))
                 goto fail_sec;
 
-        tsk = current;
         INIT_LIST_HEAD(&f->f_u.fu_list);
         atomic_long_set(&f->f_count, 1);
         rwlock_init(&f->f_owner.lock);
-        f->f_uid = tsk->cred->fsuid;
-        f->f_gid = tsk->cred->fsgid;
+        f->f_uid = cred->fsuid;
+        f->f_gid = cred->fsgid;
         eventpoll_init_file(f);
         /* f->f_version: 0 */
         return f;