6.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yu Kuai yukuai3@huawei.com
commit 86ad4cda79e0dade87d4bb0d32e1fe541d4a63e8 upstream.
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") Cc: stable@vger.kernel.org Signed-off-by: Yu Kuai yukuai3@huawei.com Link: https://lore.kernel.org/r/20240801124746.242558-1-yukuai1@huaweicloud.com Signed-off-by: Song Liu song@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/md/md.c | 1 - 1 file changed, 1 deletion(-)
--- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -8648,7 +8648,6 @@ void md_write_start(struct mddev *mddev, 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);