tree 870368a850b6ebb37e30c3d4407649f30f2d4741
parent 66cb45aa41315d1d9972cada354fbdf7870d7714
author Jens Axboe <axboe@fb.com> 1403706154 -0600
committer Jens Axboe <axboe@fb.com> 1403706154 -0600

blk-mq: blk_mq_start_hw_queue() should use blk_mq_run_hw_queue()

Currently it calls __blk_mq_run_hw_queue(), which depends on the
CPU placement being correct. This means it's not possible to call
blk_mq_start_hw_queues(q) from a context that is correct for all
queues, leading to triggering the

WARN_ON(!cpumask_test_cpu(raw_smp_processor_id(), hctx->cpumask));

in __blk_mq_run_hw_queue().

Reported-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>