CRED: Wrap task credential accesses in the JFS 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>
Acked-by: Dave Kleikamp <shaggy@austin.ibm.com>
Cc: jfs-discussion@lists.sourceforge.net
Signed-off-by: James Morris <jmorris@namei.org>

diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c
index ed6574bee51a211ea1c46f82e04d01625308577b..70022fd1c5399f0b6c85ec0d5ceee8e13269cb0d 100644 (file)
--- a/fs/jfs/jfs_inode.c
+++ b/fs/jfs/jfs_inode.c
@@ -93,13 +93,13 @@ struct inode *ialloc(struct inode *parent, umode_t mode)
                return ERR_PTR(rc);
        }
 
-       inode->i_uid = current->fsuid;
+       inode->i_uid = current_fsuid();
        if (parent->i_mode & S_ISGID) {
                inode->i_gid = parent->i_gid;
                if (S_ISDIR(mode))
                        mode |= S_ISGID;
        } else
-               inode->i_gid = current->fsgid;
+               inode->i_gid = current_fsgid();
 
        /*
         * New inodes need to save sane values on disk when