From patchwork Wed Jun 16 03:21:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Lutomirski X-Patchwork-Id: 12323809 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=-16.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 22C95C48BDF for ; Wed, 16 Jun 2021 03:21:23 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id A11C6613D0 for ; Wed, 16 Jun 2021 03:21:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A11C6613D0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 501696B0071; Tue, 15 Jun 2021 23:21:19 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4B0266B0072; Tue, 15 Jun 2021 23:21:19 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 290476B0073; Tue, 15 Jun 2021 23:21:19 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0180.hostedemail.com [216.40.44.180]) by kanga.kvack.org (Postfix) with ESMTP id ECF146B0072 for ; Tue, 15 Jun 2021 23:21:18 -0400 (EDT) Received: from smtpin35.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 8A2D8181AC9B6 for ; Wed, 16 Jun 2021 03:21:18 +0000 (UTC) X-FDA: 78258136236.35.5132A4B Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf29.hostedemail.com (Postfix) with ESMTP id 093D5371 for ; Wed, 16 Jun 2021 03:21:04 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 7C57D613D3; Wed, 16 Jun 2021 03:21:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1623813677; bh=KDnBZ2GHbeI0IjN+6nTEJv7f76MsISUAkc+t+tLuGYc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PzjhJGz+SpVdoASezCgMOqvFDc6hpGx6dhaMfNT9d5C3EW5ZginQ8GoKPB++A3vcf mCA1iyMzMRD4kGdYNFop8UHd+LylSRGCEqS95/ANcsATNeBwu4cI8LBeryq3thgosO yQi1F9CVZYfIos9SGUQA4pGMvh1tSEYrWsTzooKVBHRnkbzwtgNVsOTfCgl4k/Opeo k9nMFSDm+g02ufFTu3JBOlCV0vuWSCC21abQU/0X6NWwkRU3SQNfncb11RtDGfxupu OdwaU/nM5Ufaa3K+4Rkyg59DyhQwst1aPszUA14M5pVv1r/xV38Hw5z+dLarYjPmW4 DJrD1z+n9Btiw== From: Andy Lutomirski To: x86@kernel.org Cc: Dave Hansen , LKML , linux-mm@kvack.org, Andrew Morton , Andy Lutomirski , Mathieu Desnoyers , Nicholas Piggin , Peter Zijlstra Subject: [PATCH 3/8] membarrier: Remove membarrier_arch_switch_mm() prototype in core code Date: Tue, 15 Jun 2021 20:21:08 -0700 Message-Id: <2d45c55c4fbbe38317ff625e2a2158b6fbe0dc2d.1623813516.git.luto@kernel.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: References: MIME-Version: 1.0 Authentication-Results: imf29.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=PzjhJGz+; spf=pass (imf29.hostedemail.com: domain of luto@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=luto@kernel.org; dmarc=pass (policy=none) header.from=kernel.org X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 093D5371 X-Stat-Signature: rw3cby5me43tjmke4oy74wmwyo7y791m X-HE-Tag: 1623813664-204936 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: membarrier_arch_switch_mm()'s sole implementation and caller are in arch/powerpc. Having a fallback implementation in include/linux is confusing -- remove it. It's still mentioned in a comment, but a subsequent patch will remove it. Cc: Mathieu Desnoyers Cc: Nicholas Piggin Cc: Peter Zijlstra Signed-off-by: Andy Lutomirski Acked-by: Nicholas Piggin Acked-by: Mathieu Desnoyers --- include/linux/sched/mm.h | 7 ------- 1 file changed, 7 deletions(-) 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 *mm); extern void membarrier_update_current_mm(struct mm_struct *next_mm); #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) { }