Searched hist:"022333427 a8aa4ccb318a9db90cea4e69ca1826b" (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/drivers/md/ |
| H A D | dm-mpath.c | diff 022333427a8aa4ccb318a9db90cea4e69ca1826b Tue Mar 10 22:49:26 CDT 2015 Mike Snitzer <snitzer@redhat.com> dm: optimize dm_mq_queue_rq to _not_ use kthread if using pure blk-mq
dm_mq_queue_rq() is in atomic context so care must be taken to not
sleep -- as such GFP_ATOMIC is used for the md->bs bioset allocations
and dm-mpath's call to blk_get_request(). In the future the bioset
allocations will hopefully go away (by removing support for partial
completions of bios in a cloned request).
Also prepare for supporting DM blk-mq ontop of old-style request_fn
device(s) if a new dm-mod 'use_blk_mq' parameter is set. The kthread
will still be used to queue work if blk-mq is used ontop of old-style
request_fn device(s).
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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| H A D | dm.c | diff 022333427a8aa4ccb318a9db90cea4e69ca1826b Tue Mar 10 22:49:26 CDT 2015 Mike Snitzer <snitzer@redhat.com> dm: optimize dm_mq_queue_rq to _not_ use kthread if using pure blk-mq
dm_mq_queue_rq() is in atomic context so care must be taken to not
sleep -- as such GFP_ATOMIC is used for the md->bs bioset allocations
and dm-mpath's call to blk_get_request(). In the future the bioset
allocations will hopefully go away (by removing support for partial
completions of bios in a cloned request).
Also prepare for supporting DM blk-mq ontop of old-style request_fn
device(s) if a new dm-mod 'use_blk_mq' parameter is set. The kthread
will still be used to queue work if blk-mq is used ontop of old-style
request_fn device(s).
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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