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authorSteven Whitehouse <swhiteho@redhat.com>2011-03-14 12:40:29 +0000
committerSteven Whitehouse <swhiteho@redhat.com>2011-03-14 12:40:29 +0000
commitc618e87a5fd02aaad006c12d5a80a231dfa39250 (patch)
tree3f8f1f39fb6dedf3cb72fbd71377cc0eecafc7ce /fs/gfs2/lops.c
parentd6a079e82efd5fcbb1c7295f22e123c2cc748018 (diff)
GFS2: Update to AIL list locking
The previous patch missed a couple of places where the AIL list needed locking, so this fixes up those places, plus a comment is corrected too. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Cc: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/gfs2/lops.c')
-rw-r--r--fs/gfs2/lops.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c
index 4295a6a0f1e..e919abf25ec 100644
--- a/fs/gfs2/lops.c
+++ b/fs/gfs2/lops.c
@@ -51,8 +51,10 @@ static void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh)
/* If this buffer is in the AIL and it has already been written
* to in-place disk block, remove it from the AIL.
*/
+ spin_lock(&sdp->sd_ail_lock);
if (bd->bd_ail)
list_move(&bd->bd_ail_st_list, &bd->bd_ail->ai_ail2_list);
+ spin_unlock(&sdp->sd_ail_lock);
get_bh(bh);
atomic_inc(&sdp->sd_log_pinned);
trace_gfs2_pin(bd, 1);