diff mbox series

[02/15] bcache: trace missed reading by cache_missed

Message ID 20181008124121.20192-3-colyli@suse.de (mailing list archive)
State New, archived
Headers show
Series bcache patches for 4.20 | expand

Commit Message

Coly Li Oct. 8, 2018, 12:41 p.m. UTC 
From: Tang Junhui <tang.junhui.linux@gmail.com>

Missed reading IOs are identified by s->cache_missed, not the
s->cache_miss, so in trace_bcache_read() using trace_bcache_read
to identify whether the IO is missed or not.

Signed-off-by: Tang Junhui <tang.junhui.linux@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Coly Li <colyli@suse.de>
---
 drivers/md/bcache/request.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 51be355a3309..4946d486f734 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -850,7 +850,7 @@  static void cached_dev_read_done_bh(struct closure *cl)
 
 	bch_mark_cache_accounting(s->iop.c, s->d,
 				  !s->cache_missed, s->iop.bypass);
-	trace_bcache_read(s->orig_bio, !s->cache_miss, s->iop.bypass);
+	trace_bcache_read(s->orig_bio, !s->cache_missed, s->iop.bypass);
 
 	if (s->iop.status)
 		continue_at_nobarrier(cl, cached_dev_read_error, bcache_wq);