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authorMing Lei <ming.lei@redhat.com>2018-02-23 23:36:56 +0800
committerJens Axboe <axboe@kernel.dk>2018-02-24 15:55:54 -0700
commit105976f517791aed3b11f8f53b308a2069d42055 (patch)
tree2c3d09d3f0e2495be37f67b29f45a5ca19089bf2 /block/kyber-iosched.c
parent0bd1ed4860d0f5f836aa8371797689a3779d1bf5 (diff)
downloadlinux-0-day-105976f517791aed3b11f8f53b308a2069d42055.tar.gz
blk-mq: don't call io sched's .requeue_request when requeueing rq to ->dispatch
__blk_mq_requeue_request() covers two cases: - one is that the requeued request is added to hctx->dispatch, such as blk_mq_dispatch_rq_list() - another case is that the request is requeued to io scheduler, such as blk_mq_requeue_request(). We should call io sched's .requeue_request callback only for the 2nd case. Cc: Paolo Valente <paolo.valente@linaro.org> Cc: Omar Sandoval <osandov@fb.com> Fixes: bd166ef183c2 ("blk-mq-sched: add framework for MQ capable IO schedulers") Cc: stable@vger.kernel.org Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com> Acked-by: Paolo Valente <paolo.valente@linaro.org> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/kyber-iosched.c')
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