Messages in this thread | | | Date | Sun, 15 Oct 2017 07:16:28 +0800 | From | Ming Lei <> | Subject | Re: [PATCH V10 0/8] blk-mq-sched: improve sequential I/O performance |
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On Sat, Oct 14, 2017 at 07:38:29PM +0200, Oleksandr Natalenko wrote: > Hi. > > By any chance, could this be backported to 4.14? I'm confused with "SCSI: > allow to pass null rq to scsi_prep_state_check()" since it uses refactored > flags. > > === > if (req && !(req->rq_flags & RQF_PREEMPT)) > === > > Is it safe to revert to REQ_PREEMPT here, or rq_flags should also be replaced > with cmd_flags?
Hi Oleksandr,
Inside scsi_mq_get_budget(), req is passed as null, and RQF_PREEMPT won't be checked at all.
Thanks, Ming
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