md: don't wait faulty rdev in md_wait_for_blocked_rdev()

md_wait_for_blocked_rdev() is called for write IO while rdev is
blocked, howerver, rdev can be faulty after choosing this rdev to write,
and faulty rdev should never be accessed anymore, hence there is no point
to wait for faulty rdev to be unblocked.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Tested-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
Link: https://lore.kernel.org/r/20241031033114.3845582-3-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
This commit is contained in:
Yu Kuai 2024-10-31 11:31:09 +08:00 committed by Song Liu
parent 4abfce19c7
commit 50e8274855

View File

@ -9762,9 +9762,7 @@ EXPORT_SYMBOL(md_reap_sync_thread);
void md_wait_for_blocked_rdev(struct md_rdev *rdev, struct mddev *mddev)
{
sysfs_notify_dirent_safe(rdev->sysfs_state);
wait_event_timeout(rdev->blocked_wait,
!test_bit(Blocked, &rdev->flags) &&
!test_bit(BlockedBadBlocks, &rdev->flags),
wait_event_timeout(rdev->blocked_wait, !rdev_blocked(rdev),
msecs_to_jiffies(5000));
rdev_dec_pending(rdev, mddev);
}