This is a note to let you know that I've just added the patch titled
bcache: trace missed reading by cache_missed
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
bcache-trace-missed-reading-by-cache_missed.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 502b291568fc7faf1ebdb2c2590f12851db0ff76 Mon Sep 17 00:00:00 2001
From: Tang Junhui <tang.junhui.linux@xxxxxxxxx>
Date: Mon, 8 Oct 2018 20:41:08 +0800
Subject: bcache: trace missed reading by cache_missed
From: Tang Junhui <tang.junhui.linux@xxxxxxxxx>
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@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Coly Li <colyli@xxxxxxx>
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/md/bcache/request.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -850,7 +850,7 @@ static void cached_dev_read_done_bh(stru
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);
Patches currently in stable-queue which might be from tang.junhui.linux@xxxxxxxxx are
queue-4.19/bcache-fix-ioctl-in-flash-device.patch
queue-4.19/bcache-trace-missed-reading-by-cache_missed.patch
queue-4.19/bcache-fix-miss-key-refill-end-in-writeback.patch
queue-4.19/bcache-correct-dirty-data-statistics.patch
