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Commit 4cb9da7d authored by Alexey Obitotskiy's avatar Alexey Obitotskiy Committed by Shaohua Li
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Fix kernel module refcount handling 



md loads raidX modules and increments module refcount each time level
has changed but does not decrement it. You are unable to unload raid0
module after reshape because raid0 reshape changes level to raid4
and back to raid0.

Signed-off-by: default avatarAleksey Obitotskiy <aleksey.obitotskiy@intel.com>
Signed-off-by: default avatarShaohua Li <shli@fb.com>
parent 0e3ef49e

drivers/md/md.c

+2 −0
Original line number Original line Diff line number Diff line
@@ -3579,6 +3579,8 @@ level_store(struct mddev *mddev, const char *buf, size_t len) 
			mddev->to_remove = &md_redundancy_group;

			mddev->to_remove = &md_redundancy_group;

	}

	}





	module_put(oldpers->owner);



	rdev_for_each(rdev, mddev) {

	rdev_for_each(rdev, mddev) {

		if (rdev->raid_disk < 0)

		if (rdev->raid_disk < 0)

			continue;

			continue;