tree 9400809275952c263a8512447cf625b3c490fa61
parent 6077c2d706097c00d8f2fed57d3f3c45cd228ee8
author Bart Van Assche <bart.vanassche@sandisk.com> 1491590409 -0600
committer Jens Axboe <axboe@fb.com> 1491590409 -0600

blk-mq: Restart a single queue if tag sets are shared

To improve scalability, if hardware queues are shared, restart
a single hardware queue in round-robin fashion. Rename
blk_mq_sched_restart_queues() to reflect the new semantics.
Remove blk_mq_sched_mark_restart_queue() because this function
has no callers. Remove flag QUEUE_FLAG_RESTART because this
patch removes the code that uses this flag.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>