Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4131c889 authored by Shaohua Li's avatar Shaohua Li Committed by Greg Kroah-Hartman
Browse files

md/raid10: submit bio directly to replacement disk 




[ Upstream commit 6d399783e9d4e9bd44931501948059d24ad96ff8 ]

Commit 57c67df4(md/raid10: submit IO from originating thread instead of
md thread) submits bio directly for normal disks but not for replacement
disks. There is no point we shouldn't do this for replacement disks.

Cc: NeilBrown <neilb@suse.com>
Signed-off-by: default avatarShaohua Li <shli@fb.com>
Signed-off-by: default avatarSasha Levin <alexander.levin@verizon.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5c6712ab

drivers/md/raid10.c

+16 −3
Original line number Diff line number Diff line
@@ -1407,11 +1407,24 @@ static void __make_request(struct mddev *mddev, struct bio *bio) 
			mbio->bi_private = r10_bio;



			atomic_inc(&r10_bio->remaining);



			cb = blk_check_plugged(raid10_unplug, mddev,

					       sizeof(*plug));

			if (cb)

				plug = container_of(cb, struct raid10_plug_cb,

						    cb);

			else

				plug = NULL;

			spin_lock_irqsave(&conf->device_lock, flags);

			if (plug) {

				bio_list_add(&plug->pending, mbio);

				plug->pending_cnt++;

			} else {

				bio_list_add(&conf->pending_bio_list, mbio);

				conf->pending_count++;

			}

			spin_unlock_irqrestore(&conf->device_lock, flags);

			if (!mddev_check_plugged(mddev))

			if (!plug)

				md_wakeup_thread(mddev->thread);

		}

	}