From 4cb9da7d9c631514effa5e806f9de7c7c746c3a8 Mon Sep 17 00:00:00 2001 From: Alexey Obitotskiy Date: Thu, 23 Jun 2016 12:11:01 +0200 Subject: [PATCH] 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 Signed-off-by: Shaohua Li --- drivers/md/md.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/md/md.c b/drivers/md/md.c index 4b8a264e9777..29297e97cdea 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -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; -- 2.39.5