linux/drivers/block/loop.c
Zhaoyang Huang 3bee991f2b loop: release the lo_work_lock before queue_work
queue_work could spin on wq->cpu_pwq->pool->lock which could lead to
concurrent loop_process_work failed on lo_work_lock contention and
increase the request latency. Remove this combination by moving the
lock release ahead of queue_work.

Signed-off-by: Zhaoyang Huang <zhaoyang.huang@unisoc.com>
Link: https://lore.kernel.org/r/20250207091942.3966756-1-zhaoyang.huang@unisoc.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-02-11 07:14:28 -07:00

2333 lines
58 KiB