Messages in this thread | | | Subject | Re: [PATCH v3] powerpc: spinlock: Fix spin_unlock_wait() | From | Michael Ellerman <> | Date | Fri, 10 Jun 2016 10:57:54 +1000 |
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On Thu, 2016-06-09 at 19:50 +0200, Peter Zijlstra wrote: > On Thu, Jun 09, 2016 at 10:23:28PM +1000, Michael Ellerman wrote: > > Unfortunately the patch isn't 100%. > > So what I'll do; since my patch is trying to ensure all implementations > of spin_unlock_wait() provide ACQUIRE semantics, and this patch does > indeed do so, is skip touching PPC entirely and hope this patch lands > before 4.8.
OK.
I don't see any reason it wouldn't make 4.8, we just need to decide whether we use the old "while (lock->slock)" or one of the other options Boqun proposed.
cheers
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