Commit bd5c39ed authored Jun 23, 2021 by Christoph Hellwig Committed by Jens Axboe Jun 30, 2021

loop: reduce loop_ctl_mutex coverage in loop_exit



loop_ctl_mutex is only needed to iterate the IDR for removing the loop
devices, so reduce the coverage.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Link: https://lore.kernel.org/r/20210623145908.92973-3-hch@lst.de


Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent 8b52d8be

drivers/block/loop.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -2549,13 +2549,14 @@ static int loop_exit_cb(int id, void ptr, void data)

		static void __exit loop_exit(void)
		{
		mutex_lock(&loop_ctl_mutex);
		unregister_blkdev(LOOP_MAJOR, "loop");
		misc_deregister(&loop_misc);

		mutex_lock(&loop_ctl_mutex);
		idr_for_each(&loop_index_idr, &loop_exit_cb, NULL);
		idr_destroy(&loop_index_idr);
		mutex_unlock(&loop_ctl_mutex);

		idr_destroy(&loop_index_idr);
		}

		module_init(loop_init);