diff options
| author | Tang Junhui <tang.junhui.linux@gmail.com> | 2018-10-08 20:41:08 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-13 11:08:15 -0800 |
| commit | fec039ec69c8e1ba4ba6a4bc040e45d2ea5a6dfe (patch) | |
| tree | 573618b4bca96c7e657102fd65878e52fe32740e | |
| parent | 95e124ad80c1d4bce9fbda9eeb0d903c0afaa2bc (diff) | |
bcache: trace missed reading by cache_missed
commit 502b291568fc7faf1ebdb2c2590f12851db0ff76 upstream.
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>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/md/bcache/request.c | 2 |
1 files changed, 1 insertions, 1 deletions
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); |