3.18-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tomasz Majchrzak <tomasz.majchr...@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.majchr...@intel.com>
Reviewed-by: Artur Paszkiewicz <artur.paszkiew...@intel.com>
Signed-off-by: Shaohua Li <s...@fb.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/md/raid10.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1171,6 +1171,8 @@ 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.
@@ -1556,8 +1558,6 @@ static void make_request(struct mddev *m
return;
}
- md_write_start(mddev, bio);
-
do {
/*
