Searched hist:a8ac51e4ab97765838ae6a07d6ff7f7bfaaa0ea3 (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/drivers/md/ |
| H A D | dm-rq.c | diff a8ac51e4ab97765838ae6a07d6ff7f7bfaaa0ea3 Fri Sep 09 18:24:57 CDT 2016 Mike Snitzer <snitzer@redhat.com> dm rq: add DM_MAPIO_DELAY_REQUEUE to delay requeue of blk-mq requests
Otherwise blk-mq will immediately dispatch requests that are requeued
via a BLK_MQ_RQ_QUEUE_BUSY return from blk_mq_ops .queue_rq.
Delayed requeue is implemented using blk_mq_delay_kick_requeue_list()
with a delay of 5 secs. In the context of DM multipath (all paths down)
it doesn't make any sense to requeue more quickly.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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| /openbmc/linux/include/linux/ |
| H A D | device-mapper.h | diff a8ac51e4ab97765838ae6a07d6ff7f7bfaaa0ea3 Fri Sep 09 18:24:57 CDT 2016 Mike Snitzer <snitzer@redhat.com> dm rq: add DM_MAPIO_DELAY_REQUEUE to delay requeue of blk-mq requests
Otherwise blk-mq will immediately dispatch requests that are requeued
via a BLK_MQ_RQ_QUEUE_BUSY return from blk_mq_ops .queue_rq.
Delayed requeue is implemented using blk_mq_delay_kick_requeue_list()
with a delay of 5 secs. In the context of DM multipath (all paths down)
it doesn't make any sense to requeue more quickly.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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