From b6553bef8cdc2983943f60edb8dc5e49361ebb3b Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 14 Feb 2023 19:33:06 +0100 Subject: [PATCH] Revert "blk-cgroup: delay blk-cgroup initialization until add_disk" This reverts commit 178fa7d49815ea8001f43ade37a22072829fd8ab. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20230214183308.1658775-4-hch@lst.de Signed-off-by: Jens Axboe --- block/genhd.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index 7e03155..093ef29 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -466,13 +466,9 @@ int __must_check device_add_disk(struct device *parent, struct gendisk *disk, */ pm_runtime_set_memalloc_noio(ddev, true); - ret = blkcg_init_disk(disk); - if (ret) - goto out_del_block_link; - ret = blk_integrity_add(disk); if (ret) - goto out_blkcg_exit; + goto out_del_block_link; disk->part0->bd_holder_dir = kobject_create_and_add("holders", &ddev->kobj); @@ -538,8 +534,6 @@ out_put_holder_dir: kobject_put(disk->part0->bd_holder_dir); out_del_integrity: blk_integrity_del(disk); -out_blkcg_exit: - blkcg_exit_disk(disk); out_del_block_link: if (!sysfs_deprecated) sysfs_remove_link(block_depr, dev_name(ddev)); @@ -668,8 +662,6 @@ void del_gendisk(struct gendisk *disk) rq_qos_exit(q); blk_mq_unquiesce_queue(q); - blkcg_exit_disk(disk); - /* * If the disk does not own the queue, allow using passthrough requests * again. Else leave the queue frozen to fail all I/O. @@ -1178,6 +1170,8 @@ static void disk_release(struct device *dev) !test_bit(GD_ADDED, &disk->state)) blk_mq_exit_queue(disk->queue); + blkcg_exit_disk(disk); + bioset_exit(&disk->bio_split); disk_release_events(disk); @@ -1390,6 +1384,9 @@ struct gendisk *__alloc_disk_node(struct request_queue *q, int node_id, if (xa_insert(&disk->part_tbl, 0, disk->part0, GFP_KERNEL)) goto out_destroy_part_tbl; + if (blkcg_init_disk(disk)) + goto out_erase_part0; + rand_initialize_disk(disk); disk_to_dev(disk)->class = &block_class; disk_to_dev(disk)->type = &disk_type; @@ -1402,6 +1399,8 @@ struct gendisk *__alloc_disk_node(struct request_queue *q, int node_id, #endif return disk; +out_erase_part0: + xa_erase(&disk->part_tbl, 0); out_destroy_part_tbl: xa_destroy(&disk->part_tbl); disk->part0->bd_disk = NULL; -- 2.7.4