Commit a09b3140 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe

block: freeze the queue earlier in del_gendisk

Freeze the queue earlier in del_gendisk so that the state does not
change while we remove debugfs and sysfs files.

Ming mentioned that being able to observer request in debugfs might
be useful while the queue is being frozen in del_gendisk, which is
made possible by this change.
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220614074827.458955-5-hch@lst.deSigned-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 99d055b4
......@@ -623,6 +623,7 @@ void del_gendisk(struct gendisk *disk)
* Prevent new I/O from crossing bio_queue_enter().
*/
blk_queue_start_drain(q);
blk_mq_freeze_queue_wait(q);
if (!(disk->flags & GENHD_FL_HIDDEN)) {
sysfs_remove_link(&disk_to_dev(disk)->kobj, "bdi");
......@@ -646,8 +647,6 @@ void del_gendisk(struct gendisk *disk)
pm_runtime_set_memalloc_noio(disk_to_dev(disk), false);
device_del(disk_to_dev(disk));
blk_mq_freeze_queue_wait(q);
blk_throtl_cancel_bios(disk->queue);
blk_sync_queue(q);
......
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