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=-7.1 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY 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 7DC44C4346E for ; Sun, 27 Sep 2020 09:17:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4C1A623977 for ; Sun, 27 Sep 2020 09:17:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726869AbgI0JRu (ORCPT ); Sun, 27 Sep 2020 05:17:50 -0400 Received: from pegase1.c-s.fr ([93.17.236.30]:41185 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726358AbgI0JQY (ORCPT ); Sun, 27 Sep 2020 05:16:24 -0400 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4Bzg4d3jxbz9vCy3; Sun, 27 Sep 2020 11:16:17 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id YnL7fQKgnr5O; Sun, 27 Sep 2020 11:16:17 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4Bzg4d2GF7z9vCxw; Sun, 27 Sep 2020 11:16:17 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 99B168B771; Sun, 27 Sep 2020 11:16:21 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id 03abVDqyohdV; Sun, 27 Sep 2020 11:16:21 +0200 (CEST) Received: from po17688vm.idsi0.si.c-s.fr (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 499CC8B75B; Sun, 27 Sep 2020 11:16:21 +0200 (CEST) Received: by po17688vm.idsi0.si.c-s.fr (Postfix, from userid 0) id 2EB8665DE8; Sun, 27 Sep 2020 09:16:21 +0000 (UTC) Message-Id: <9d14540bd10832b6c9519d74fb5728fdc4974b36.1601197618.git.christophe.leroy@csgroup.eu> In-Reply-To: References: From: Christophe Leroy Subject: [PATCH v1 04/30] powerpc/vdso: Remove get_page() in vdso_pagelist initialization To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Date: Sun, 27 Sep 2020 09:16:21 +0000 (UTC) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Partly copied from commit 16fb1a9bec61 ("arm64: vdso: clean up vdso_pagelist initialization"). No need to get_page() the vdso text/data - these are part of the kernel image. Signed-off-by: Christophe Leroy --- arch/powerpc/kernel/vdso.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c index 6d106fcafb9e..dfaa4be258d2 100644 --- a/arch/powerpc/kernel/vdso.c +++ b/arch/powerpc/kernel/vdso.c @@ -748,7 +748,7 @@ static int __init vdso_init(void) BUG_ON(vdso32_pagelist == NULL); for (i = 0; i < vdso32_pages; i++) { struct page *pg = virt_to_page(vdso32_kbase + i*PAGE_SIZE); - get_page(pg); + vdso32_pagelist[i] = pg; } vdso32_pagelist[i++] = virt_to_page(vdso_data); @@ -761,15 +761,13 @@ static int __init vdso_init(void) BUG_ON(vdso64_pagelist == NULL); for (i = 0; i < vdso64_pages; i++) { struct page *pg = virt_to_page(vdso64_kbase + i*PAGE_SIZE); - get_page(pg); + vdso64_pagelist[i] = pg; } vdso64_pagelist[i++] = virt_to_page(vdso_data); vdso64_pagelist[i] = NULL; #endif /* CONFIG_PPC64 */ - get_page(virt_to_page(vdso_data)); - smp_wmb(); vdso_ready = 1; -- 2.25.0 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=-7.1 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY 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 1529EC4346E for ; Sun, 27 Sep 2020 09:19:19 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (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 D1AA82389F for ; Sun, 27 Sep 2020 09:19:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D1AA82389F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4Bzg8211r2zDqQR for ; Sun, 27 Sep 2020 19:19:14 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=csgroup.eu (client-ip=93.17.236.30; helo=pegase1.c-s.fr; envelope-from=christophe.leroy@csgroup.eu; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4Bzg4p6HqlzDqPm for ; Sun, 27 Sep 2020 19:16:25 +1000 (AEST) Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4Bzg4d3jxbz9vCy3; Sun, 27 Sep 2020 11:16:17 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id YnL7fQKgnr5O; Sun, 27 Sep 2020 11:16:17 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4Bzg4d2GF7z9vCxw; Sun, 27 Sep 2020 11:16:17 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 99B168B771; Sun, 27 Sep 2020 11:16:21 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id 03abVDqyohdV; Sun, 27 Sep 2020 11:16:21 +0200 (CEST) Received: from po17688vm.idsi0.si.c-s.fr (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 499CC8B75B; Sun, 27 Sep 2020 11:16:21 +0200 (CEST) Received: by po17688vm.idsi0.si.c-s.fr (Postfix, from userid 0) id 2EB8665DE8; Sun, 27 Sep 2020 09:16:21 +0000 (UTC) Message-Id: <9d14540bd10832b6c9519d74fb5728fdc4974b36.1601197618.git.christophe.leroy@csgroup.eu> In-Reply-To: References: From: Christophe Leroy Subject: [PATCH v1 04/30] powerpc/vdso: Remove get_page() in vdso_pagelist initialization To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman Date: Sun, 27 Sep 2020 09:16:21 +0000 (UTC) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Partly copied from commit 16fb1a9bec61 ("arm64: vdso: clean up vdso_pagelist initialization"). No need to get_page() the vdso text/data - these are part of the kernel image. Signed-off-by: Christophe Leroy --- arch/powerpc/kernel/vdso.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c index 6d106fcafb9e..dfaa4be258d2 100644 --- a/arch/powerpc/kernel/vdso.c +++ b/arch/powerpc/kernel/vdso.c @@ -748,7 +748,7 @@ static int __init vdso_init(void) BUG_ON(vdso32_pagelist == NULL); for (i = 0; i < vdso32_pages; i++) { struct page *pg = virt_to_page(vdso32_kbase + i*PAGE_SIZE); - get_page(pg); + vdso32_pagelist[i] = pg; } vdso32_pagelist[i++] = virt_to_page(vdso_data); @@ -761,15 +761,13 @@ static int __init vdso_init(void) BUG_ON(vdso64_pagelist == NULL); for (i = 0; i < vdso64_pages; i++) { struct page *pg = virt_to_page(vdso64_kbase + i*PAGE_SIZE); - get_page(pg); + vdso64_pagelist[i] = pg; } vdso64_pagelist[i++] = virt_to_page(vdso_data); vdso64_pagelist[i] = NULL; #endif /* CONFIG_PPC64 */ - get_page(virt_to_page(vdso_data)); - smp_wmb(); vdso_ready = 1; -- 2.25.0