From: Coly Li <colyli@suse.de>
To: axboe@kernel.dk
Cc: linux-bcache@vger.kernel.org, linux-block@vger.kernel.org,
Tang Junhui <tang.junhui.linux@gmail.com>,
stable@vger.kernel.org, Coly Li <colyli@suse.de>
Subject: [PATCH 02/15] bcache: trace missed reading by cache_missed
Date: Mon, 8 Oct 2018 20:41:08 +0800 [thread overview]
Message-ID: <20181008124121.20192-3-colyli@suse.de> (raw)
In-Reply-To: <20181008124121.20192-1-colyli@suse.de>
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);
--
2.19.0
next prev parent reply other threads:[~2018-10-08 12:41 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-08 12:41 [PATCH 00/15] bcache patches for 4.20 Coly Li
2018-10-08 12:41 ` [PATCH 01/15] bcache: account size of buckets used in uuid write to ca->meta_sectors_written Coly Li
2018-10-08 12:41 ` Coly Li [this message]
2018-10-08 12:41 ` [PATCH 03/15] bcache: use REQ_PRIO to indicate bio for metadata Coly Li
2018-10-08 12:41 ` [PATCH 04/15] bcache: fix ioctl in flash device Coly Li
2018-10-08 12:41 ` [PATCH 05/15] bcache: fix typo in code comments of closure_return_with_destructor() Coly Li
2018-10-08 12:41 ` [PATCH 06/15] bcache: correct dirty data statistics Coly Li
2018-10-08 12:41 ` [PATCH 07/15] bcache: Populate writeback_rate_minimum attribute Coly Li
2018-10-08 14:19 ` Jens Axboe
2018-10-08 15:02 ` Coly Li
2018-10-08 15:22 ` Jens Axboe
2018-10-08 12:41 ` [PATCH 08/15] bcache: fix miss key refill->end in writeback Coly Li
2018-10-08 12:41 ` [PATCH 09/15] bcache: recal cached_dev_sectors on detach Coly Li
2018-10-08 12:41 ` [PATCH 10/15] bcache: remove unused bch_passthrough_cache Coly Li
2018-10-08 12:41 ` [PATCH 11/15] bcache: remove useless parameter of bch_debug_init() Coly Li
2018-10-08 12:41 ` [PATCH 12/15] bcache: replace hard coded number with BUCKET_GC_GEN_MAX Coly Li
2018-10-08 12:41 ` [PATCH 13/15] bcache: use MAX_CACHES_PER_SET instead of magic number 8 in __bch_bucket_alloc_set Coly Li
2018-10-08 12:41 ` [PATCH 14/15] bcache: split combined if-condition code into separate ones Coly Li
2018-10-08 12:41 ` [PATCH 15/15] bcache: panic fix for making cache device Coly Li
2018-10-08 14:20 ` [PATCH 00/15] bcache patches for 4.20 Jens Axboe
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