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=-10.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 D08A2C433E2 for ; Fri, 3 Jul 2020 15:40:40 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8B17C21582 for ; Fri, 3 Jul 2020 15:40:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="04nrdMor" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8B17C21582 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=XaaQ67KkO3ql9z6dJa+0HAF9N+h+5wxPJb6MIh9IDME=; b=04nrdMorpDPqLGAbFSCu6O4cd 0qMyZxNlaWvdKCN7JKTodHGAD2kbZWnuqawb9tL/3OzVsLVSaFm/FxEmiyvT2K01yME7eXMliaSCR AW2J1OFIIS8N2WTn/JmCzvb0qEIxX7AwY3Dp0FqI0u8yqEBgDMStlBP4w+QblNO7ytTRt2FOcSsrX iuO8+jrC2N7O/Nmda2yfurLiPyCQMu2ALLdmWx3wi0dCceMMgrPC0QmhgSqJ9P/KN34idfIYB7suI FR4oMlPqSapjWYlFK1Z9ZBK0JVJowKj3/sZs5Pgb16swkBScUswvHehSNHiApXnIZm8Hf++0K66G2 XuvO15T5Q==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jrNm7-0001lZ-K0; Fri, 03 Jul 2020 15:38:51 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jrNl5-0001ED-Gm for linux-arm-kernel@lists.infradead.org; Fri, 03 Jul 2020 15:37:48 +0000 Received: from localhost.localdomain (unknown [95.146.230.158]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0B5DD2186A; Fri, 3 Jul 2020 15:37:44 +0000 (UTC) From: Catalin Marinas To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v6 10/26] arm64: Avoid unnecessary clear_user_page() indirection Date: Fri, 3 Jul 2020 16:37:02 +0100 Message-Id: <20200703153718.16973-11-catalin.marinas@arm.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200703153718.16973-1-catalin.marinas@arm.com> References: <20200703153718.16973-1-catalin.marinas@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200703_113747_700892_E8754ACE X-CRM114-Status: GOOD ( 10.45 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, Szabolcs Nagy , Andrey Konovalov , Kevin Brodsky , Peter Collingbourne , linux-mm@kvack.org, Andrew Morton , Vincenzo Frascino , Will Deacon , Dave P Martin Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Since clear_user_page() calls clear_page() directly, avoid the unnecessary indirection. Signed-off-by: Catalin Marinas Cc: Will Deacon --- Notes: New in v5. arch/arm64/include/asm/page.h | 3 +-- arch/arm64/mm/copypage.c | 6 ------ 2 files changed, 1 insertion(+), 8 deletions(-) diff --git a/arch/arm64/include/asm/page.h b/arch/arm64/include/asm/page.h index 11734ce29702..d918cb1d83a6 100644 --- a/arch/arm64/include/asm/page.h +++ b/arch/arm64/include/asm/page.h @@ -18,7 +18,6 @@ struct page; struct vm_area_struct; -extern void __cpu_clear_user_page(void *p, unsigned long user); extern void copy_page(void *to, const void *from); extern void clear_page(void *to); @@ -33,7 +32,7 @@ void copy_highpage(struct page *to, struct page *from); alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE -#define clear_user_page(addr,vaddr,pg) __cpu_clear_user_page(addr, vaddr) +#define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) typedef struct page *pgtable_t; diff --git a/arch/arm64/mm/copypage.c b/arch/arm64/mm/copypage.c index 4a2233fa674e..70a71f38b6a9 100644 --- a/arch/arm64/mm/copypage.c +++ b/arch/arm64/mm/copypage.c @@ -35,9 +35,3 @@ void copy_user_highpage(struct page *to, struct page *from, flush_dcache_page(to); } EXPORT_SYMBOL_GPL(copy_user_highpage); - -void __cpu_clear_user_page(void *kaddr, unsigned long vaddr) -{ - clear_page(kaddr); -} -EXPORT_SYMBOL_GPL(__cpu_clear_user_page); _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel