CRED: Wrap task credential accesses in the SYSV 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: Christoph Hellwig <hch@infradead.org>
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/sysv/ialloc.c b/fs/sysv/ialloc.c
index 115ab0d6f4b..241e9765cfa 100644
--- a/fs/sysv/ialloc.c
+++ b/fs/sysv/ialloc.c
@@ -165,9 +165,9 @@ struct inode * sysv_new_inode(const struct inode * dir, mode_t mode)
                 if (S_ISDIR(mode))
                         mode |= S_ISGID;
         } else
-                inode->i_gid = current->fsgid;
+                inode->i_gid = current_fsgid();
 
-        inode->i_uid = current->fsuid;
+        inode->i_uid = current_fsuid();
         inode->i_ino = fs16_to_cpu(sbi, ino);
         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
         inode->i_blocks = 0;