diff options
| author | Chengming Zhou <zhouchengming@bytedance.com> | 2023-04-13 14:28:05 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-04-13 06:48:11 -0600 |
| commit | 8e15dfbd9ae21e518979e3823e335073e725f445 (patch) | |
| tree | c52de30f05381d2c5e2c361ce597a91a1ef43867 /block/blk-throttle.c | |
| parent | 20de765f6d9da0c47b756429c60b41063b990a10 (diff) | |
blk-throttle: only enable blk-stat when BLK_DEV_THROTTLING_LOW
blk_throtl_register() will unconditionally enable blk-stat for gendisk
when register, even when we have no BLK_DEV_THROTTLING_LOW config.
Since the kernel always has only BLK_DEV_THROTTLING config and the
BLK_DEV_THROTTLING_LOW config is still in EXPERIMENTAL state, we can
just skip blk-stat when !BLK_DEV_THROTTLING_LOW.
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20230413062805.2081970-2-chengming.zhou@linux.dev
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-throttle.c')
| -rw-r--r-- | block/blk-throttle.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/block/blk-throttle.c b/block/blk-throttle.c index 9bac95343ba0..9d010d867fbf 100644 --- a/block/blk-throttle.c +++ b/block/blk-throttle.c @@ -2443,11 +2443,12 @@ void blk_throtl_register(struct gendisk *disk) #ifndef CONFIG_BLK_DEV_THROTTLING_LOW /* if no low limit, use previous default */ td->throtl_slice = DFL_THROTL_SLICE_HD; -#endif +#else td->track_bio_latency = !queue_is_mq(q); if (!td->track_bio_latency) blk_stat_enable_accounting(q); +#endif } #ifdef CONFIG_BLK_DEV_THROTTLING_LOW |