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authorweiping zhang2017-09-22 23:36:28 +0800
committerJens Axboe2017-11-03 12:21:06 -0600
commitc2e82a234873d905260a3bd0aca9577e85619bda (patch)
tree1d9b5b149222baab4164890c35e8e45bbb9b9af7 /scripts/Makefile.kasan
parenta116895fc7b61de4f26548c9b635a06515ec7563 (diff)
blk-mq: fix nr_requests wrong value when modify it from sysfs
if blk-mq use "none" io scheduler, nr_request get a wrong value when input a number > tag_set->queue_depth. blk_mq_tag_update_depth will get the smaller one min(nr, set->queue_depth), and then q->nr_request get a wrong value. Reproduce: echo none > /sys/block/nvme0n1/queue/scheduler echo 1000000 > /sys/block/nvme0n1/queue/nr_requests cat /sys/block/nvme0n1/queue/nr_requests 1000000 Signed-off-by: weiping zhang <zhangweiping@didichuxing.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'scripts/Makefile.kasan')
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