Ming,
On 9/12/17 18:26, Ming Lei wrote:
>>> OK, I suggest to document this guarantee of no write reorder for ZBC
>>> somewhere, so that people will keep it in mind when trying to change
>>> the current code.
>>
>> Have you looked at the comments in sd_zbc.c ? That is explained there.
>> Granted,
On Tue, Sep 12, 2017 at 05:24:02PM +0900, Damien Le Moal wrote:
> Ming,
>
> On 9/10/17 14:10, Ming Lei wrote:
> > On Fri, Sep 08, 2017 at 09:53:53AM -0700, Damien Le Moal wrote:
> >> Ming,
> >>
> >> On 9/8/17 05:43, Ming Lei wrote:
> >>> Hi Damien,
> >>>
> >>> On Fri, Sep 08, 2017 at 01:16:38AM
Ming,
On 9/10/17 14:10, Ming Lei wrote:
> On Fri, Sep 08, 2017 at 09:53:53AM -0700, Damien Le Moal wrote:
>> Ming,
>>
>> On 9/8/17 05:43, Ming Lei wrote:
>>> Hi Damien,
>>>
>>> On Fri, Sep 08, 2017 at 01:16:38AM +0900, Damien Le Moal wrote:
In the case of a ZBC disk used with scsi-mq, zone
On Fri, Sep 08, 2017 at 09:53:53AM -0700, Damien Le Moal wrote:
> Ming,
>
> On 9/8/17 05:43, Ming Lei wrote:
> > Hi Damien,
> >
> > On Fri, Sep 08, 2017 at 01:16:38AM +0900, Damien Le Moal wrote:
> >> In the case of a ZBC disk used with scsi-mq, zone write locking does
> >> not prevent write
Ming,
On 9/8/17 05:43, Ming Lei wrote:
> Hi Damien,
>
> On Fri, Sep 08, 2017 at 01:16:38AM +0900, Damien Le Moal wrote:
>> In the case of a ZBC disk used with scsi-mq, zone write locking does
>> not prevent write reordering in sequential zones. Unlike the legacy
>> case, zone locking can only be
Hi Damien,
On Fri, Sep 08, 2017 at 01:16:38AM +0900, Damien Le Moal wrote:
> In the case of a ZBC disk used with scsi-mq, zone write locking does
> not prevent write reordering in sequential zones. Unlike the legacy
> case, zone locking can only be done after the command request is
> removed from
In the case of a ZBC disk used with scsi-mq, zone write locking does
not prevent write reordering in sequential zones. Unlike the legacy
case, zone locking can only be done after the command request is
removed from the scheduler dispatch queue. That is, at the time of
zone locking, the write
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