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[60.242.147.73]) by smtp.gmail.com with ESMTPSA id b10sm642263pff.14.2021.06.15.21.26.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Jun 2021 21:26:45 -0700 (PDT) Date: Wed, 16 Jun 2021 14:26:39 +1000 From: Nicholas Piggin Subject: Re: [PATCH 3/8] membarrier: Remove membarrier_arch_switch_mm() prototype in core code To: Andy Lutomirski , x86@kernel.org Cc: Andrew Morton , Dave Hansen , LKML , linux-mm@kvack.org, Mathieu Desnoyers , Peter Zijlstra References: <2d45c55c4fbbe38317ff625e2a2158b6fbe0dc2d.1623813516.git.luto@kernel.org> In-Reply-To: <2d45c55c4fbbe38317ff625e2a2158b6fbe0dc2d.1623813516.git.luto@kernel.org> MIME-Version: 1.0 Message-Id: <1623817538.r80z7qt0vv.astroid@bobo.none> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 5F1B8200107A Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=gmail.com header.s=20161025 header.b=diujc4RQ; spf=pass (imf11.hostedemail.com: domain of npiggin@gmail.com designates 209.85.210.173 as permitted sender) smtp.mailfrom=npiggin@gmail.com; dmarc=pass (policy=none) header.from=gmail.com X-Stat-Signature: erk3kz9sdppcbj914gdf43unjqp9jxcp X-HE-Tag: 1623817594-351639 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Excerpts from Andy Lutomirski's message of June 16, 2021 1:21 pm: > membarrier_arch_switch_mm()'s sole implementation and caller are in > arch/powerpc. Having a fallback implementation in include/linux is > confusing -- remove it. >=20 > It's still mentioned in a comment, but a subsequent patch will remove > it. >=20 > Cc: Mathieu Desnoyers > Cc: Nicholas Piggin > Cc: Peter Zijlstra > Signed-off-by: Andy Lutomirski Acked-by: Nicholas Piggin > --- > include/linux/sched/mm.h | 7 ------- > 1 file changed, 7 deletions(-) >=20 > diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h > index 24d97d1b6252..10aace21d25e 100644 > --- a/include/linux/sched/mm.h > +++ b/include/linux/sched/mm.h > @@ -350,13 +350,6 @@ extern void membarrier_exec_mmap(struct mm_struct *m= m); > extern void membarrier_update_current_mm(struct mm_struct *next_mm); > =20 > #else > -#ifdef CONFIG_ARCH_HAS_MEMBARRIER_CALLBACKS > -static inline void membarrier_arch_switch_mm(struct mm_struct *prev, > - struct mm_struct *next, > - struct task_struct *tsk) > -{ > -} > -#endif > static inline void membarrier_exec_mmap(struct mm_struct *mm) > { > } > --=20 > 2.31.1 >=20 >=20