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Groups > linux.kernel > #1706817

Re: blk-mq breaks suspend even with runtime PM patch

From Jens Axboe <axboe@kernel.dk>
Newsgroups linux.kernel
Subject Re: blk-mq breaks suspend even with runtime PM patch
Date 2017-08-08 20:40 +0200
Message-ID <uchA6-3Kf-17@gated-at.bofh.it> (permalink)
References (3 earlier) <ucfyj-2uV-41@gated-at.bofh.it> <ucfHX-2yd-15@gated-at.bofh.it> <ucfRD-2BI-7@gated-at.bofh.it> <ucg1k-2Fc-21@gated-at.bofh.it> <uchA5-3Kf-15@gated-at.bofh.it>
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On 08/08/2017 12:33 PM, Mike Galbraith wrote:
> On Tue, 2017-08-08 at 18:50 +0200, Mike Galbraith wrote:
>> On Tue, 2017-08-08 at 09:44 -0700, Greg KH wrote:
>>>
>>> Should these go back farther than 4.12?  Looks like they apply cleanly
>>> to 4.9, didn't look older than that...
>>
>> I met prerequisites at 4.11...
> 
> FWIW, I took/modified 2d0364c8c1a9.  Dunno if the suspend regression
> exists in 4.11 though, without which you'll likely want nothing.

It does exist, the only change here is that we default people to
scsi-mq in 4.12+. Honestly, nobody complained since we've had scsi-mq,
so I could pivot both ways on whether we really need the changes in
earlier versions or not.

-- 
Jens Axboe

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Thread

Re: blk-mq breaks suspend even with runtime PM patch Greg KH <gregkh@linuxfoundation.org> - 2017-08-08 18:30 +0200
  Re: blk-mq breaks suspend even with runtime PM patch Mike Galbraith <efault@gmx.de> - 2017-08-08 18:40 +0200
    Re: blk-mq breaks suspend even with runtime PM patch Greg KH <gregkh@linuxfoundation.org> - 2017-08-08 18:50 +0200
      Re: blk-mq breaks suspend even with runtime PM patch Mike Galbraith <efault@gmx.de> - 2017-08-08 19:00 +0200
        Re: blk-mq breaks suspend even with runtime PM patch Mike Galbraith <efault@gmx.de> - 2017-08-08 20:40 +0200
          Re: blk-mq breaks suspend even with runtime PM patch Jens Axboe <axboe@kernel.dk> - 2017-08-08 20:40 +0200
  Re: blk-mq breaks suspend even with runtime PM patch Jens Axboe <axboe@kernel.dk> - 2017-08-08 18:40 +0200
    Re: blk-mq breaks suspend even with runtime PM patch Oleksandr Natalenko <oleksandr@natalenko.name> - 2017-08-08 18:40 +0200
      Re: blk-mq breaks suspend even with runtime PM patch Greg KH <gregkh@linuxfoundation.org> - 2017-08-08 18:50 +0200
        Re: blk-mq breaks suspend even with runtime PM patch Oleksandr Natalenko <oleksandr@natalenko.name> - 2017-08-08 18:50 +0200

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