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 --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);