linux-kernel - Re: [RFC][PATCH] mips: Fix arch_spin

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 02 Feb 2016 18:23:37 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	paulmck@...ux.vnet.ibm.com, Boqun Feng <boqun.feng@...il.com>
CC:	Will Deacon <will.deacon@....com>,
	"Maciej W. Rozycki" <macro@...tec.com>,
	David Daney <ddaney@...iumnetworks.com>,
	Måns Rullgård <mans@...sr.com>,
	Ralf Baechle <ralf@...ux-mips.org>,
	linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org
Subject: Re: [RFC][PATCH] mips: Fix arch_spin_unlock()



On 2 February 2016 07:44:33 CET, "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> wrote:

>
>> If so, do we also need to take the following pairing into
>consideration?
>> 
>> o	smp_store_release() -> READ_ONCE(); if ;smp_rmb(); <ACCESS_ONCE()>


We rely on this with smp_cond_aquire() to extend the chain.
-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.