Re: [PATCHSET block/for-next] blk-mq: update freezing

[Jens Axboe]

On 2014-06-28 06:13, Tejun Heo wrote:
> On Wed, Jun 18, 2014 at 09:19:26AM -0700, Jens Axboe wrote:
> > >   percpu/for-3.17 6fbc07bbe2b5 ("percpu: invoke __verify_pcpu_ptr() from the generic part of accessors and operations")
> > > +[1] [PATCHSET percpu/for-3.17] percpu: implement percpu_ref_reinit()
> > >
> > > and available in the following git branch.
> > >
> > >   git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git review-mq-percpu_ref
> > >
> > >   block/blk-core.c       |   13 ++++---
> > >   block/blk-mq.c         |   90 ++++++++++++++++---------------------------------
> > >   block/blk-mq.h         |    2 -
> > >   block/blk-sysfs.c      |    2 -
> > >   include/linux/blkdev.h |    4 +-
> > >   5 files changed, 44 insertions(+), 67 deletions(-)
> >
> > Thanks Tejun, this looks pretty good. I was worried the tryget_live() would
> > be too expensive, but that looks not to be the case. I like the cleanups to
> > using a general mechanism. I'll run this through some functional and
> > performance testing.
>
> FYI, the percpu_ref changes needed by this patchset are applied to
> percpu/for-3.17 branch which is stable and can be pulled into the
> block tree.
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu.git for-3.17

Great, thanks! Was just mulling over this yesterday. I'll get it pulled 
in as a base.

--
Jens Axboe

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