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Re: [PATCH RESENT] dm: Check kthread_run's return value

From Mike Snitzer <snitzer@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH RESENT] dm: Check kthread_run's return value
Date 2016-07-06 15:40 +0200
Message-ID <rRVdv-1mu-9@gated-at.bofh.it> (permalink)
References <rRdYR-7jy-1@gated-at.bofh.it> <rRUUa-1e4-23@gated-at.bofh.it> <rRV3Q-1jb-31@gated-at.bofh.it>
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On Wed, Jul 06 2016 at  9:27am -0400,
Minfei Huang <mnghuan@gmail.com> wrote:

> On 07/06/16 at 09:16P, Mike Snitzer wrote:
> > On Mon, Jul 04 2016 at 11:25am -0400,
> > Minfei Huang <mnghuan@gmail.com> wrote:
> > 
> > > kthread function is used to process kthread_work. And there is no return
> > > value checking during create this thread. Add this checking to fix this
> > > issue.
> > > 
> > > Signed-off-by: Minfei Huang <mnghuan@gmail.com>
> > This needed rebasing against linux-dm.git's 'for-next'.  I've now staged
> > this fix for 4.8 inclusion, see:
> > https://git.kernel.org/cgit/linux/kernel/git/device-mapper/linux-dm.git/commit/?h=for-next&id=7193a9defcab6f3d3f1eb64c68bad7534e5a39ad
> 
> Seems that we should fix it in stable as well.

Given the code movement it isn't easy to do (by simply adding a stable@
cc).  I've not seen a single report of an ignored kthread_run() failure
for multipath using .request_fn interface.

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Thread

[PATCH RESENT] dm: Check kthread_run's return value Minfei Huang <mnghuan@gmail.com> - 2016-07-04 17:30 +0200
  Re: [PATCH RESENT] dm: Check kthread_run's return value Mike Snitzer <snitzer@redhat.com> - 2016-07-06 15:20 +0200
    Re: [PATCH RESENT] dm: Check kthread_run's return value Minfei Huang <mnghuan@gmail.com> - 2016-07-06 15:30 +0200
      Re: [PATCH RESENT] dm: Check kthread_run's return value Mike Snitzer <snitzer@redhat.com> - 2016-07-06 15:40 +0200
        Re: [PATCH RESENT] dm: Check kthread_run's return value Minfei Huang <mnghuan@gmail.com> - 2016-07-06 15:40 +0200

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