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authorBart Van Assche <bart.vanassche@wdc.com>2017-11-09 10:49:57 -0800
committerJens Axboe <axboe@kernel.dk>2017-11-10 19:53:25 -0700
commitc9254f2ddb19387ea9714a57ea48463c20333b92 (patch)
tree8b0ded19c9d2847de42e971b9f951570416acc60 /block/blk-mq.c
parent039c635f4e666b647df2100038de276a83fb3fca (diff)
downloadlinux-c9254f2ddb19387ea9714a57ea48463c20333b92.tar.bz2
block: Add the QUEUE_FLAG_PREEMPT_ONLY request queue flag
This flag will be used in the next patch to let the block layer core know whether or not a SCSI request queue has been quiesced. A quiesced SCSI queue namely only processes RQF_PREEMPT requests. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Tested-by: Martin Steigerwald <martin@lichtvoll.de> Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name> Cc: Ming Lei <ming.lei@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq.c')
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