From 8e60947d2f1ee675681a526da99fa587e63f78e3 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 23 Jun 2021 16:59:08 +0200 Subject: [PATCH] loop: rewrite loop_exit using idr_for_each_entry Use idr_for_each_entry to simplify removing all devices. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Link: https://lore.kernel.org/r/20210623145908.92973-10-hch@lst.de Signed-off-by: Jens Axboe --- drivers/block/loop.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index ff7014608ef6..39c05cf518fb 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -2518,21 +2518,17 @@ static int __init loop_init(void) return err; } -static int loop_exit_cb(int id, void *ptr, void *data) -{ - struct loop_device *lo = ptr; - - loop_remove(lo); - return 0; -} - static void __exit loop_exit(void) { + struct loop_device *lo; + int id; + 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_for_each_entry(&loop_index_idr, lo, id) + loop_remove(lo); mutex_unlock(&loop_ctl_mutex); idr_destroy(&loop_index_idr);