On 2/15/19 11:14 AM, Ming Lei wrote:
> On Fri, Feb 15, 2019 at 10:34:39AM +0800, jianchao.wang wrote:
>> Hi Ming
>>
>> Thanks for your kindly response.
>>
>> On 2/15/19 10:00 AM, Ming Lei wrote:
>>> On Tue, Feb 12, 2019 at 09:56:25AM +0800, Jianchao Wang wrote:
When requeue, if RQF_DONTPREP
On Fri, Feb 15, 2019 at 10:34:39AM +0800, jianchao.wang wrote:
> Hi Ming
>
> Thanks for your kindly response.
>
> On 2/15/19 10:00 AM, Ming Lei wrote:
> > On Tue, Feb 12, 2019 at 09:56:25AM +0800, Jianchao Wang wrote:
> >> When requeue, if RQF_DONTPREP, rq has contained some driver
> >> specific
Hi Ming
Thanks for your kindly response.
On 2/15/19 10:00 AM, Ming Lei wrote:
> On Tue, Feb 12, 2019 at 09:56:25AM +0800, Jianchao Wang wrote:
>> When requeue, if RQF_DONTPREP, rq has contained some driver
>> specific data, so insert it to hctx dispatch list to avoid any
>> merge. Take scsi as ex
On Tue, Feb 12, 2019 at 09:56:25AM +0800, Jianchao Wang wrote:
> When requeue, if RQF_DONTPREP, rq has contained some driver
> specific data, so insert it to hctx dispatch list to avoid any
> merge. Take scsi as example, here is the trace event log (no
> io scheduler, because RQF_STARTED would prev
On 2/11/19 6:56 PM, Jianchao Wang wrote:
> When requeue, if RQF_DONTPREP, rq has contained some driver
> specific data, so insert it to hctx dispatch list to avoid any
> merge. Take scsi as example, here is the trace event log (no
> io scheduler, because RQF_STARTED would prevent merging),
>
>
When requeue, if RQF_DONTPREP, rq has contained some driver
specific data, so insert it to hctx dispatch list to avoid any
merge. Take scsi as example, here is the trace event log (no
io scheduler, because RQF_STARTED would prevent merging),
kworker/0:1H-339 [000] ...1 2037.209289: block_rq_
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