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Message-ID: <20160524165836.GC15189@worktop.bitpit.net> Date: Tue, 24 May 2016 18:58:36 +0200 From: Peter Zijlstra <peterz@...radead.org> To: Tejun Heo <tj@...nel.org> Cc: Linus Torvalds <torvalds@...ux-foundation.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Manfred Spraul <manfred@...orfullife.com>, Davidlohr Bueso <dave@...olabs.net>, Paul McKenney <paulmck@...ux.vnet.ibm.com>, Will Deacon <will.deacon@....com>, Boqun Feng <boqun.feng@...il.com>, Waiman Long <Waiman.Long@....com>, Pablo Neira Ayuso <pablo@...filter.org>, Patrick McHardy <kaber@...sh.net>, David Miller <davem@...emloft.net>, Oleg Nesterov <oleg@...hat.com>, netfilter-devel@...r.kernel.org, Sasha Levin <sasha.levin@...cle.com>, hofrat@...dl.org Subject: Re: [RFC][PATCH 2/3] locking: Annotate spin_unlock_wait() users On Tue, May 24, 2016 at 12:22:07PM -0400, Tejun Heo wrote: > A delta but that particular libata usage is probably not needed now. > The path was used while libata was gradually adding error handlers to > the low level drivers. I don't think we don't have any left w/o one > at this point. I'll verify and get rid of that usage. OK, that would be great; I was sorta lost in there, but it looked like if you need the spin_unlock_wait() you also need the extra barrier thing. If you can remove it, better still.
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