| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 49/76] raid10: increment write counter after bio is split | Date | Tue, 28 Mar 2017 14:30:46 +0200 |
| |
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tomasz Majchrzak <tomasz.majchrzak@intel.com>
commit 9b622e2bbcf049c82e2550d35fb54ac205965f50 upstream.
md pending write counter must be incremented after bio is split, otherwise it gets decremented too many times in end bio callback and becomes negative.
Signed-off-by: Tomasz Majchrzak <tomasz.majchrzak@intel.com> Reviewed-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com> Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/md/raid10.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1072,6 +1072,8 @@ static void __make_request(struct mddev int max_sectors; int sectors; + md_write_start(mddev, bio); + /* * Register the new request and wait if the reconstruction * thread has put up a bar for new requests. @@ -1455,8 +1457,6 @@ static void make_request(struct mddev *m return; } - md_write_start(mddev, bio); - do { /*
|