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authorMing Lei <ming.lei@redhat.com>2017-10-27 06:43:30 +0200
committerJens Axboe <axboe@kernel.dk>2017-11-01 15:20:34 +0100
commit1f460b63d4b37f504d8d0affc2cd492eb005ea97 (patch)
tree829611af2a709a83ac018bf6c1d083e2fde02659 /drivers/block
parentblk-mq: don't handle TAG_SHARED in restart (diff)
downloadlinux-1f460b63d4b37f504d8d0affc2cd492eb005ea97.tar.xz
linux-1f460b63d4b37f504d8d0affc2cd492eb005ea97.zip
blk-mq: don't restart queue when .get_budget returns BLK_STS_RESOURCE
SCSI restarts its queue in scsi_end_request() automatically, so we don't need to handle this case in blk-mq. Especailly any request won't be dequeued in this case, we needn't to worry about IO hang caused by restart vs. dispatch. Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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