From nobody Thu Sep 11 12:57:01 2025 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 D70E9CA0FE8 for ; Fri, 1 Sep 2023 07:52:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346715AbjIAHwL (ORCPT ); Fri, 1 Sep 2023 03:52:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43746 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244609AbjIAHwJ (ORCPT ); Fri, 1 Sep 2023 03:52:09 -0400 Received: from dggsgout11.his.huawei.com (unknown [45.249.212.51]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8C8AA10D5 for ; Fri, 1 Sep 2023 00:52:06 -0700 (PDT) Received: from mail02.huawei.com (unknown [172.30.67.143]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4RcVc10HnWz4f3m7Z for ; Fri, 1 Sep 2023 15:52:01 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.124.27]) by APP4 (Coremail) with SMTP id gCh0CgDnw6YfmPFk1Z5cCA--.13825S7; Fri, 01 Sep 2023 15:52:02 +0800 (CST) From: Kemeng Shi To: akpm@linux-foundation.org, baolin.wang@linux.alibaba.com, mgorman@techsingularity.net, david@redhat.com, willy@infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 5/6] mm/compaction: improve comment of is_via_compact_memory Date: Fri, 1 Sep 2023 23:51:40 +0800 Message-Id: <20230901155141.249860-6-shikemeng@huaweicloud.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20230901155141.249860-1-shikemeng@huaweicloud.com> References: <20230901155141.249860-1-shikemeng@huaweicloud.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: gCh0CgDnw6YfmPFk1Z5cCA--.13825S7 X-Coremail-Antispam: 1UD129KBjvdXoWrKF1kKr13AF4DXry7try8uFg_yoWDKwb_Jr 4IvFnYyr1Yvry8uFs3Ar43ZrykCa1rZrnrZan2gr4Yyas2yF4ktFWDZry7Xr4YgFZ2gr9I kwn7Jr1qy3W2yjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbS8YFVCjjxCrM7AC8VAFwI0_Wr0E3s1l1xkIjI8I6I8E6xAIw20E Y4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l87I20VAvwVAaII0Ic2I_JFv_Gryl82 xGYIkIc2x26280x7IE14v26r126s0DM28IrcIa0xkI8VCY1x0267AKxVW5JVCq3wA2ocxC 64kIII0Yj41l84x0c7CEw4AK67xGY2AK021l84ACjcxK6xIIjxv20xvE14v26w1j6s0DM2 8EF7xvwVC0I7IYx2IY6xkF7I0E14v26r4UJVWxJr1l84ACjcxK6I8E87Iv67AKxVW0oVCq 3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_GcCE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8w Aqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE 14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwCF04k20xvY0x 0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E 7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_JF0_Jw1lIxkGc2Ij64vIr41lIxAIcV C0I7IYx2IY67AKxVWUCVW8JwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF 04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7 CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x07jstxDUUUUU= X-CM-SenderInfo: 5vklyvpphqwq5kxd4v5lfo033gof0z/ X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" We do proactive compaction with order =3D=3D -1 via 1. /proc/sys/vm/compact_memory 2. /sys/devices/system/node/nodex/compact 3. /proc/sys/vm/compaction_proactiveness Add missed situation in which order =3D=3D -1. Signed-off-by: Kemeng Shi Reviewed-by: Baolin Wang Acked-by: Mel Gorman --- mm/compaction.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/mm/compaction.c b/mm/compaction.c index c377d78e0f15..ff3426a0d9c5 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -2065,8 +2065,10 @@ static isolate_migrate_t isolate_migratepages(struct= compact_control *cc) } =20 /* - * order =3D=3D -1 is expected when compacting via - * /proc/sys/vm/compact_memory + * order =3D=3D -1 is expected when compacting proactively via + * 1. /proc/sys/vm/compact_memory + * 2. /sys/devices/system/node/nodex/compact + * 3. /proc/sys/vm/compaction_proactiveness */ static inline bool is_via_compact_memory(int order) { --=20 2.30.0