Re: [PATCH percpu/for-3.16 2/2] percpu-refcount: implement percpu_ref_tryget()

[Tejun Heo]

On Fri, May 09, 2014 at 12:40:21PM -0700, Kent Overstreet wrote:
> On Wed, May 07, 2014 at 11:58:10AM -0400, Tejun Heo wrote:
> > Implement percpu_ref_tryget() which fails if the refcnt already
> > reached zero.  Note that this is different from the recently renamed
> > percpu_ref_tryget_live() which fails if the refcnt has been killed and
> > is draining the remaining references.  percpu_ref_tryget() succeeds on
> > a killed refcnt as long as its current refcnt is above zero.
> 
> I'd still kind of prefer tryget() to be labelled "deprecated, don't use outside
> the cgroup code" or somesuch, but it's not a huge deal :)

Hmmm... why would it be deprecated?  These are just two different
operations.

Thanks.

-- 
tejun
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