Messages in this thread | | | Date | Thu, 18 Nov 2021 10:34:44 +0000 | From | yajun.deng@linux ... | Subject | Re: [PATCH] refcount: introduce refcount_is_one() helper function |
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November 18, 2021 4:44 PM, "Peter Zijlstra" <peterz@infradead.org> wrote:
> 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 :-)
Sorry, I didn't understand what is the 'isn't broken'。
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