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| author | Bart Van Assche <bvanassche@acm.org> | 2024-10-22 21:16:17 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-10-23 04:11:25 +0300 |
| commit | ccd9e252c515ac5a3ed04a414c95d1307d17f159 (patch) | |
| tree | 21966a99098342d8bf53f38b81fc1baeaad646c1 /tools/perf/scripts/python/arm-cs-trace-disasm.py | |
| parent | 904ebd2527c507752f5ddb358f887d2e0dab96a0 (diff) | |
| download | linux-ccd9e252c515ac5a3ed04a414c95d1307d17f159.tar.xz | |
blk-mq: Make blk_mq_quiesce_tagset() hold the tag list mutex less long
Make sure that the tag_list_lock mutex is not held any longer than
necessary. This change reduces latency if e.g. blk_mq_quiesce_tagset()
is called concurrently from more than one thread. This function is used
by the NVMe core and also by the UFS driver.
Reported-by: Peter Wang <peter.wang@mediatek.com>
Cc: Chao Leng <lengchao@huawei.com>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 414dd48e882c ("blk-mq: add tagset quiesce interface")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Link: https://lore.kernel.org/r/20241022181617.2716173-1-bvanassche@acm.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'tools/perf/scripts/python/arm-cs-trace-disasm.py')
0 files changed, 0 insertions, 0 deletions