Commit 4cb9da7d authored Jun 23, 2016 by Alexey Obitotskiy Committed by Shaohua Li Jul 19, 2016

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: Aleksey Obitotskiy <aleksey.obitotskiy@intel.com>
Signed-off-by: Shaohua Li <shli@fb.com>

parent 0e3ef49e

drivers/md/md.c

+2 −0

Original line number	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;
		}

		module_put(oldpers->owner);

		rdev_for_each(rdev, mddev) {
		if (rdev->raid_disk < 0)
		continue;

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