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authorSteven Whitehouse <swhiteho@redhat.com>2011-04-18 14:18:38 +0100
committerSteven Whitehouse <swhiteho@redhat.com>2011-04-20 09:01:58 +0100
commitc83ae9cad8776bab153a05cc466be39f14011091 (patch)
treeb8ae7e94b03e3e6d21df24ff41d466ea552b6ccb /fs/gfs2/log.c
parent4667a0ec32867865fd4deccf834594b3ea831baf (diff)
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GFS2: Add an AIL writeback tracepoint
Add a tracepoint for monitoring writeback of the AIL. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/log.c')
-rw-r--r--fs/gfs2/log.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 03e0041..ad1f188 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -144,6 +144,7 @@ void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc)
struct list_head *head = &sdp->sd_ail1_list;
struct gfs2_ail *ai;
+ trace_gfs2_ail_flush(sdp, wbc, 1);
spin_lock(&sdp->sd_ail_lock);
list_for_each_entry_reverse(ai, head, ai_list) {
if (wbc->nr_to_write <= 0)
@@ -151,6 +152,7 @@ void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc)
gfs2_ail1_start_one(sdp, wbc, ai); /* This may drop ail lock */
}
spin_unlock(&sdp->sd_ail_lock);
+ trace_gfs2_ail_flush(sdp, wbc, 0);
}
/**