Messages in this thread | | | Date | Thu, 18 Nov 2021 09:44:36 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH] refcount: introduce refcount_is_one() helper function |
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On Thu, Nov 18, 2021 at 08:12:56AM +0000, yajun.deng@linux.dev wrote: > November 18, 2021 3:42 PM, "Peter Zijlstra" <peterz@infradead.org> wrote: > > > On Thu, Nov 18, 2021 at 11:53:28AM +0800, Yajun Deng wrote: > > > >> There are many cases where it is necessary to determine if refcount is one, > >> introduce refcount_is_one() helper function for these cases. > > > > Give me one that is not racy? > > The following determine refcount is one, 35 count.
Very good, now get me one that isn't broken :-)
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