Received: by 2002:a05:6a10:9afc:0:0:0:0 with SMTP id t28csp3283209pxm; Mon, 28 Feb 2022 16:25:40 -0800 (PST) X-Google-Smtp-Source: ABdhPJwueE19SuUQMeymwRezzyNAltZDiTcsBjl3DG/S9/+w5K6zIjCOsDapYlWCWq6Gzcjy/FnQ X-Received: by 2002:a17:903:2289:b0:151:64c6:20fd with SMTP id b9-20020a170903228900b0015164c620fdmr8361261plh.64.1646094340416; Mon, 28 Feb 2022 16:25:40 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1646094340; cv=none; d=google.com; s=arc-20160816; b=kEj12btuchyasmXpfB9EGkPc+XftqPEqJ8jueiar3X6vyQ+6ExxHsMyZR7J0daQ3sJ yTWIpbKWgRWfBexqLrtkNWd4kffiYvqz1TJp3fL+wSyeVtsaFsV39dpR6b52ozc6spyd cbjfurmeqiiEr8s+EIr6bj8nHIlmN9gok1yoIXYC6ks+35ZCDwyX+Ii9/BsT5/D48P1F uwRtgSPp+RqWo+n+lKh3RHugUYNxdmq/tjW843J373roWm9dssJ6so6V+xnKMvQ4/J2W 1vyl14ZOf/3KtTou3McZF6sa6fxjJ3wuvl3EuL9TKsAbKC9mg6JcAhogVyu2Wcz9m3E2 KBHw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=7qVTXgEk7jDbNe3RIcGVI67pez+4LMoxn8Ha8tkNEVM=; b=AmpseOL/cFJeu7r5/hpdoy5nglFYZpsPp6ZQjGvkFB5leluwR4ScB/Ud1yCmmuP44v qCWhrTNtpuaTF7JosZh5OxDOOgqNzauvGKQP2YEwhPzOpJEcil1XUzkhj4HXEIAXWcbG hN88RPbSn3tCPk338NWd8+XmoN6GLIPaj2o1zkDfJOQbYmMDa4abWN5YCBtgRjAESWSH Mz3xRwRU3dhJts0g90IHnD7zCS5psqwT+12Kwm9IvEzvbYCBmjmtq+mzkpNL8Uts3kGi thTrmzP37mhSYWCwfan9ff1C6woWTtO2NQ56YiG25BSfMDCPJ0/vHXCopupOe0DWMFJ3 PLBg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b="I/uneKQY"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id 34-20020a631362000000b00372d2935a19si10106323pgt.482.2022.02.28.16.25.23; Mon, 28 Feb 2022 16:25:40 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b="I/uneKQY"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231629AbiB1X6v (ORCPT + 99 others); Mon, 28 Feb 2022 18:58:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35044 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231607AbiB1X6o (ORCPT ); Mon, 28 Feb 2022 18:58:44 -0500 Received: from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com [IPv6:2607:f8b0:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DD93A40E4E; Mon, 28 Feb 2022 15:58:04 -0800 (PST) Received: by mail-pl1-x62a.google.com with SMTP id ay5so9251891plb.1; Mon, 28 Feb 2022 15:58:04 -0800 (PST) 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 :mime-version:content-transfer-encoding; bh=7qVTXgEk7jDbNe3RIcGVI67pez+4LMoxn8Ha8tkNEVM=; b=I/uneKQYRfBvvU1QYfMRxA9cdeOKNDx/GA80yQj/Vii5WOYT8JOLzKQ39OtDsLJu0e w68+trSpW+r3e+66nPqchuDl41VrZKCXAQGBhtvqKIYb9WYtGnPkgetwDILXcx3Ufnm6 qMBAVb3txy8flmueV6alKq9spfgtUhlVfk7krxGlnlerA9XBBtqiWGZLBz96Yoa74hLj Od7jXKzhB8UI9wQQeuJYi4wYkOq19NjFPBQEOFDqXYdIwIKiaAZkzknKapA4y0+lcBGv J2k+NZJFmd7jy+8HFikciV61Djwz36lqySOqaLUGqMA7vNp0f/ai6ZRZpZv18TqYZ8j0 EYOQ== 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:mime-version:content-transfer-encoding; bh=7qVTXgEk7jDbNe3RIcGVI67pez+4LMoxn8Ha8tkNEVM=; b=6h0dU8/uMz0b5aalZ5alqVNnBpRZhWH2HKe6SxMNvPcRmIpVyj40Q+qBmu+qi/3ISi SbXnJ9iYIXcy9vspVFUBMs5mnB/7/EZZUTtLN+mVQlISM1gwq7R0wK6Z2qHLw3rZeWx7 aCDM5NERmMqhUkTuyG+0P7YnhC9qk/lc6I4jOsYRLyu+rz1R9qgBzVJ9/wOv0RmXgAVb RWrnQoNU6WutKPr09o30F4LH1kPAoBaT/lZxUSrHBJz8KOIRnMpK8evfsTa53lvJbBX8 iaHVEvOUiSSDLJoNiEF4179LUsx2EIDPO/djPfpAdNsjUkpHf1V5AkHvYSMQoNr5Hsnl Ytjw== X-Gm-Message-State: AOAM530zO55JZw/7N9tiRcieUaizykWpAfB3mzZgYnES3sgCdVGeGjEb oP2Va/7qk7+1Xa2sURXyk0w= X-Received: by 2002:a17:902:b204:b0:14d:a8c8:af37 with SMTP id t4-20020a170902b20400b0014da8c8af37mr23074869plr.108.1646092684471; Mon, 28 Feb 2022 15:58:04 -0800 (PST) Received: from localhost.localdomain (c-67-174-241-145.hsd1.ca.comcast.net. [67.174.241.145]) by smtp.gmail.com with ESMTPSA id on15-20020a17090b1d0f00b001b9d1b5f901sm396963pjb.47.2022.02.28.15.57.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Feb 2022 15:58:04 -0800 (PST) From: Yang Shi To: vbabka@suse.cz, kirill.shutemov@linux.intel.com, songliubraving@fb.com, linmiaohe@huawei.com, riel@surriel.com, willy@infradead.org, ziy@nvidia.com, akpm@linux-foundation.org, tytso@mit.edu, adilger.kernel@dilger.ca, darrick.wong@oracle.com Cc: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/8] sched: coredump.h: clarify the use of MMF_VM_HUGEPAGE Date: Mon, 28 Feb 2022 15:57:34 -0800 Message-Id: <20220228235741.102941-2-shy828301@gmail.com> X-Mailer: git-send-email 2.26.3 In-Reply-To: <20220228235741.102941-1-shy828301@gmail.com> References: <20220228235741.102941-1-shy828301@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org MMF_VM_HUGEPAGE is set as long as the mm is available for khugepaged by khugepaged_enter(), not only when VM_HUGEPAGE is set on vma. Correct the comment to avoid confusion. Signed-off-by: Yang Shi --- include/linux/sched/coredump.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/linux/sched/coredump.h b/include/linux/sched/coredump.h index 4d9e3a656875..4d0a5be28b70 100644 --- a/include/linux/sched/coredump.h +++ b/include/linux/sched/coredump.h @@ -57,7 +57,8 @@ static inline int get_dumpable(struct mm_struct *mm) #endif /* leave room for more dump flags */ #define MMF_VM_MERGEABLE 16 /* KSM may merge identical pages */ -#define MMF_VM_HUGEPAGE 17 /* set when VM_HUGEPAGE is set on vma */ +#define MMF_VM_HUGEPAGE 17 /* set when mm is available for + khugepaged */ /* * This one-shot flag is dropped due to necessity of changing exe once again * on NFS restore -- 2.26.3