OrgACRN
/
acrn-kernel
mirror of https://github.com/projectacrn/acrn-kernel.git
1
0
Fork 0
Code Issues Releases Wiki Activity

loop: rewrite loop_exit using idr_for_each_entry 

Use idr_for_each_entry to simplify removing all devices.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Link: https://lore.kernel.org/r/20210623145908.92973-10-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2021-06-23 16:59:08 +02:00 committed by Jens Axboe
parent b984808146
commit 8e60947d2f
1 changed files with 5 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/block/loop.c
View File

@ -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);