xfs: exit AIL push work correctly when AIL is empty

[pandora-kernel.git] / fs / xfs / xfs_trans_ail.c

diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c
index acdb92f..226c58b 100644 (file)
--- a/fs/xfs/xfs_trans_ail.c
+++ b/fs/xfs/xfs_trans_ail.c
@@ -346,18 +346,20 @@ xfs_ail_delete(
  */
 STATIC void
 xfs_ail_worker(
-       struct work_struct *work)
+       struct work_struct      *work)
 {
-       struct xfs_ail  *ailp = container_of(to_delayed_work(work),
+       struct xfs_ail          *ailp = container_of(to_delayed_work(work),
                                        struct xfs_ail, xa_work);
-       long            tout;
-       xfs_lsn_t       target =  ailp->xa_target;
-       xfs_lsn_t       lsn;
-       xfs_log_item_t  *lip;
-       int             flush_log, count, stuck;
-       xfs_mount_t     *mp = ailp->xa_mount;
+       xfs_mount_t             *mp = ailp->xa_mount;
        struct xfs_ail_cursor   *cur = &ailp->xa_cursors;
-       int             push_xfsbufd = 0;
+       xfs_log_item_t          *lip;
+       xfs_lsn_t               lsn;
+       xfs_lsn_t               target = ailp->xa_target;
+       long                    tout = 10;
+       int                     flush_log = 0;
+       int                     stuck = 0;
+       int                     count = 0;
+       int                     push_xfsbufd = 0;
 
        spin_lock(&ailp->xa_lock);
        xfs_trans_ail_cursor_init(ailp, cur);
@@ -368,8 +370,7 @@ xfs_ail_worker(
                 */
                xfs_trans_ail_cursor_done(ailp, cur);
                spin_unlock(&ailp->xa_lock);
-               ailp->xa_last_pushed_lsn = 0;
-               return;
+               goto out_done;
        }
 
        XFS_STATS_INC(xs_push_ail);
@@ -386,7 +387,6 @@ xfs_ail_worker(
         * lots of contention on the AIL lists.
         */
        lsn = lip->li_lsn;
-       flush_log = stuck = count = 0;
        while ((XFS_LSN_CMP(lip->li_lsn, target) < 0)) {
                int     lock_result;
                /*
@@ -480,7 +480,7 @@ xfs_ail_worker(
        }
 
        /* assume we have more work to do in a short while */
-       tout = 10;
+out_done:
        if (!count) {
                /* We're past our target or empty, so idle */
                ailp->xa_last_pushed_lsn = 0;