From: Yu Kuai <yukuai3@xxxxxxxxxx> Because flush sync_work may trigger mddev_suspend() if there are spares, and this should never be done in IO path because mddev_suspend() is used to wait for IO. This problem is found by code review. Fixes: bc08041b32ab ("md: suspend array in md_start_sync() if array need reconfiguration") Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx> --- drivers/md/md.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index d3a837506a36..23cc77d51676 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -8668,7 +8668,6 @@ void md_write_start(struct mddev *mddev, struct bio *bi) BUG_ON(mddev->ro == MD_RDONLY); if (mddev->ro == MD_AUTO_READ) { /* need to switch to read/write */ - flush_work(&mddev->sync_work); mddev->ro = MD_RDWR; set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); md_wakeup_thread(mddev->thread); -- 2.39.2