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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A45E2C04A68 for ; Thu, 28 Jul 2022 20:45:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233147AbiG1Upq (ORCPT ); Thu, 28 Jul 2022 16:45:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46104 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232760AbiG1Upe (ORCPT ); Thu, 28 Jul 2022 16:45:34 -0400 Received: from mail-pg1-x532.google.com (mail-pg1-x532.google.com [IPv6:2607:f8b0:4864:20::532]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 39BCD6B248 for ; Thu, 28 Jul 2022 13:45:30 -0700 (PDT) Received: by mail-pg1-x532.google.com with SMTP id 72so2469930pge.0 for ; Thu, 28 Jul 2022 13:45:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references:reply-to :mime-version:content-transfer-encoding; bh=PxrkjbDitHfD1d97Y8UhQKa79eOpeGRQUks9O/4b63c=; b=n16KoPlvBzd95MUn2w14Fg7+fI/TRVKK4xnSvA1Ck0fepbOeZl/M1zr2wzFKrwzRoq hgiUJNCFAhbYqljsgcuOFgUMTqg2+GGDVdxORVxkRtRM5ukuktVVziFfmfOiI1dDDILQ n308kWjnEH/SwP73po2piDXPGtObpbKY0zQLIu0bNzlHTs+TIt4545L7oDmfDKOmsb0C XTM7XFMODx5xPDR18Ao7XwDiOQ51/ooNyCvekRdjy0WNutaBFsNfvk+XVar9aHhoib09 FfYr3yRD0X8UgeNpPGScXUD9sMNcjHqLVvRQ4o3MhqABKodGl6F3wZKKcJ8vytC4mWjU LGDA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:reply-to:mime-version:content-transfer-encoding; bh=PxrkjbDitHfD1d97Y8UhQKa79eOpeGRQUks9O/4b63c=; b=rQjgAk1+S7EKmt1/Df3muvdtzuOTBr4b65z350Sn7VIoDwRYfTr43bcDO1AfRb85wY px5i8moZ8BgTdc/c47Q1A6a0lxZq1k7cqZbHVrOkTw1bqIUOsJDsDytyec2OirIfZvc7 kBrYj5YFo2RK8hIlx1uzqY6j8ZrriUz5g//bGXuMq5quwqSOIC2lAmyodUEKHN5hG6aU zvQUDwe+rMVbIoY4LBEuJjXzrpgair+C9hRzhmA5JMR6jODGCuUKbLbML7eYFUO1RBtC B0aU8L4pr2pU1QzXcDlXs3gFGkK4oTmz0ARwOBMTdSUolFUD4HnN1j1cI84hBQshg+iz eokw== X-Gm-Message-State: AJIora+/I3lpTPsdkF2i7NhSStqtlZ/iJ8qsCwAcEaAbBDiRnITx5Es8 45p2YJs2N4iPQ+i7IKIjbZw= X-Google-Smtp-Source: AGRyM1tXOVFNxoBFYbFBHG8eOFa0LJHrKzg+SUCMnYmaLeI2rBEw1bFu/iUgd6WGY5hnPF0K96m9AQ== X-Received: by 2002:a63:4004:0:b0:41b:64ff:7fe2 with SMTP id n4-20020a634004000000b0041b64ff7fe2mr419118pga.172.1659041129567; Thu, 28 Jul 2022 13:45:29 -0700 (PDT) Received: from KASONG-MB0.tencent.com ([114.254.3.190]) by smtp.gmail.com with ESMTPSA id 21-20020a170902c11500b0016c40f8cb58sm1787304pli.81.2022.07.28.13.45.27 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Thu, 28 Jul 2022 13:45:29 -0700 (PDT) From: Kairui Song To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, Andrew Morton , Kairui Song Subject: [RFC PATCH 5/7] mm: try use fast path for pmd setting as well Date: Fri, 29 Jul 2022 04:45:09 +0800 Message-Id: <20220728204511.56348-6-ryncsn@gmail.com> X-Mailer: git-send-email 2.35.2 In-Reply-To: <20220728204511.56348-1-ryncsn@gmail.com> References: <20220728204511.56348-1-ryncsn@gmail.com> Reply-To: Kairui Song MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kairui Song Use the per-CPU RSS cache helper as much as possible. Signed-off-by: Kairui Song --- mm/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/memory.c b/mm/memory.c index f00f302143b6..09d7d193da51 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -4419,7 +4419,7 @@ vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page) if (write) entry = maybe_pmd_mkwrite(pmd_mkdirty(entry), vma); - add_mm_counter(vma->vm_mm, mm_counter_file(page), HPAGE_PMD_NR); + add_mm_counter_fast(vma->vm_mm, mm_counter_file(page), HPAGE_PMD_NR); page_add_file_rmap(page, vma, true); /* -- 2.35.2