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| author | Yu Kuai <yukuai3@huawei.com> | 2024-05-09 20:11:07 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-05-09 09:44:56 -0600 |
| commit | a3166c51702bb00b8f8b84022090cbab8f37be1a (patch) | |
| tree | dc0f7d08dc8dc0438a578f96809658ff97016c5f /block/blk-sysfs.c | |
| parent | bf20ab538c81bb32edab86f503fc0c55d8243bbc (diff) | |
| download | linux-a3166c51702bb00b8f8b84022090cbab8f37be1a.tar.gz linux-a3166c51702bb00b8f8b84022090cbab8f37be1a.tar.bz2 linux-a3166c51702bb00b8f8b84022090cbab8f37be1a.zip | |
blk-throttle: delay initialization until configuration
Other cgroup policy like bfq, iocost are lazy-initialized when they are
configured for the first time for the device, but blk-throttle is
initialized unconditionally from blkcg_init_disk().
Delay initialization of blk-throttle as well, to save some cpu and
memory overhead if it's not configured.
Noted that once it's initialized, it can't be destroyed until disk
removal, even if it's disabled.
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240509121107.3195568-3-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-sysfs.c')
| -rw-r--r-- | block/blk-sysfs.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index 8796c350b33d..f0f9314ab65c 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -807,7 +807,6 @@ int blk_register_queue(struct gendisk *disk) blk_queue_flag_set(QUEUE_FLAG_REGISTERED, q); wbt_enable_default(disk); - blk_throtl_register(disk); /* Now everything is ready and send out KOBJ_ADD uevent */ kobject_uevent(&disk->queue_kobj, KOBJ_ADD); |