From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 83F36C48BE8 for ; Wed, 16 Jun 2021 04:26:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 67040613C7 for ; Wed, 16 Jun 2021 04:26:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230392AbhFPE2w (ORCPT ); Wed, 16 Jun 2021 00:28:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58204 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229716AbhFPE2v (ORCPT ); Wed, 16 Jun 2021 00:28:51 -0400 Received: from mail-pg1-x535.google.com (mail-pg1-x535.google.com [IPv6:2607:f8b0:4864:20::535]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D2BDEC061574 for ; Tue, 15 Jun 2021 21:26:45 -0700 (PDT) Received: by mail-pg1-x535.google.com with SMTP id t9so920540pgn.4 for ; Tue, 15 Jun 2021 21:26:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:subject:to:cc:references:in-reply-to:mime-version :message-id:content-transfer-encoding; bh=5pDUiEFBky1MOzTrHUgdXkybB+3H0cU9q8egqLbnkdo=; b=diujc4RQ7DcRN33e+LAbtqI2aTDoDClTpy4S+vyH/7Ymj38JLPRJGvOYkS7EzciskJ GGd4xP6Bj1ahZCIsaj/FlCSK05jmsUfc6UrbueGnoXQNC2l45P7MdSHTEv3ewVbEYgIL fRV6IVVqCQZ6lKpw1shjfggujbVzonp1ar7509rAxaFgSPTTNGFHapRtcoHSYcsyIYSz reEHHtyOyiE/8u2jOxy8xd3IQw1YTO1Y/X3xhMixbyM1wsRyvsscrmyIWEcVvpDgiPna HTl8bQ9dH02c4E8WPxOSXZ4IDrvWM1BReJUhJ+453Z9D4XYogeU9sRnH+AleBysYVo3k Yk9A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:subject:to:cc:references:in-reply-to :mime-version:message-id:content-transfer-encoding; bh=5pDUiEFBky1MOzTrHUgdXkybB+3H0cU9q8egqLbnkdo=; b=fbsFR5dKYBpTbMijbKvHztlFmgG6H6oD4GsBk8BXTtT4RX9YWe5lSZ341Y18ke1K4s gwJvjYM9eRPMC/JVJ0kjXoC1UcCcO94Y376xG1Y3chMF9ZHf2okE2J2mqB7H8xDfEhio QCrbEYHECeLbo6G14158PyGVIdcZ8xLLrynSds0hHUXGxWjaKkl93rk9WbHShJC5DIF/ R7tfR8pfCD39ax8FbFC9cIPTRuYnKQfECYd4a1VaNCBhI9+ix0chekaXycOZboeEY5n/ A5A/ars1d3J6ILcmNvhpu19KehndikFqV6m2jSVfNVh7e3QKL18emSqHqwnPgbGSfepd cDDw== X-Gm-Message-State: AOAM531px4xywYIi8C1/ZrSLyQwMnvNglzrKbmRP8085nBavS+Hj2+yN ua9VvqGFgRxthLIVF2E5OJs= X-Google-Smtp-Source: ABdhPJy+Y8/UYpHLI1NKubpDNG1U/QNWEVMSOB/fmA6HEHcRqNk3fIkPROuPsEEdCBf3nd1yxG7FMQ== X-Received: by 2002:a63:f13:: with SMTP id e19mr2986629pgl.112.1623817605334; Tue, 15 Jun 2021 21:26:45 -0700 (PDT) Received: from localhost (60-242-147-73.tpgi.com.au. [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 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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