diff options
| author | Shaohua Li <shli@fb.com> | 2016-03-14 11:49:32 -0700 |
|---|---|---|
| committer | Shaohua Li <shli@fb.com> | 2016-03-17 14:27:01 -0700 |
| commit | 23ddba80ebe836476bb2fa1f5ef305dd1c63dc0b (patch) | |
| tree | 087fe99d5d520c7caaeefaa9784329f720a41b0c /drivers/md | |
| parent | ccfc7bf1f09d6190ef86693ddc761d5fe3fa47cb (diff) | |
raid10: include bio_end_io_list in nr_queued to prevent freeze_array hang
This is the raid10 counterpart of the bug fixed by Nate
(raid1: include bio_end_io_list in nr_queued to prevent freeze_array hang)
Fixes: 95af587e95(md/raid10: ensure device failure recorded before write request returns)
Cc: stable@vger.kernel.org (V4.3+)
Cc: Nate Dailey <nate.dailey@stratus.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/raid10.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 1c1447dd3417..e3fd725d5c4d 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2664,6 +2664,7 @@ static void handle_write_completed(struct r10conf *conf, struct r10bio *r10_bio) if (fail) { spin_lock_irq(&conf->device_lock); list_add(&r10_bio->retry_list, &conf->bio_end_io_list); + conf->nr_queued++; spin_unlock_irq(&conf->device_lock); md_wakeup_thread(conf->mddev->thread); } else { @@ -2691,8 +2692,10 @@ static void raid10d(struct md_thread *thread) LIST_HEAD(tmp); spin_lock_irqsave(&conf->device_lock, flags); if (!test_bit(MD_CHANGE_PENDING, &mddev->flags)) { - list_add(&tmp, &conf->bio_end_io_list); - list_del_init(&conf->bio_end_io_list); + while (!list_empty(&conf->bio_end_io_list)) { + list_move(conf->bio_end_io_list.prev, &tmp); + conf->nr_queued--; + } } spin_unlock_irqrestore(&conf->device_lock, flags); while (!list_empty(&tmp)) { |