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Re: [PATCH -v6 10/13] futex,rt_mutex: Restructure rt_mutex_finish_proxy_lock()

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  Re: [PATCH -v6 10/13] futex,rt_mutex: Restructure  rt_mutex_finish_proxy_lock() Darren Hart <dvhart@infradead.org> - 2017-04-08 01:40 +0200

#1619160 — Re: [PATCH -v6 10/13] futex,rt_mutex: Restructure rt_mutex_finish_proxy_lock()

On Fri, Apr 07, 2017 at 04:30:59PM -0700, Darren Hart wrote:
> On Wed, Mar 22, 2017 at 11:35:57AM +0100, Peter Zijlstra wrote:
> > With the ultimate goal of keeping rt_mutex wait_list and futex_q
> > waiters consistent we want to split 'rt_mutex_futex_lock()' into finer
> 
> I want to be clear that I understand why this patch is needed - as it actually
> moves both the waiter removal and the rt_waiter freeing under the hb lock while
> you've been working to be less dependent on the hb lock.
> 
> Was inconsistency of the rt_mutex wait_list and the futex_q waiters a problem
> before this patch series, or do the previous patches make this one necessary?

Ah, this is a follow-on to the issue described in 7 of 10. Nevermind.

-- 
Darren Hart
VMware Open Source Technology Center

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