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=-9.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 55887C3A5A9 for ; Sat, 2 May 2020 14:35:28 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 1778B20661 for ; Sat, 2 May 2020 14:35:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="YQXECGzk" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1778B20661 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id BF36D8E0006; Sat, 2 May 2020 10:35:27 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id BA48D8E0001; Sat, 2 May 2020 10:35:27 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id AE0358E0006; Sat, 2 May 2020 10:35:27 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0050.hostedemail.com [216.40.44.50]) by kanga.kvack.org (Postfix) with ESMTP id 94E068E0001 for ; Sat, 2 May 2020 10:35:27 -0400 (EDT) Received: from smtpin16.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 51AF282499A8 for ; Sat, 2 May 2020 14:35:27 +0000 (UTC) X-FDA: 76772027094.16.drop95_127b6e1e9833e X-HE-Tag: drop95_127b6e1e9833e X-Filterd-Recvd-Size: 5365 Received: from mail-pl1-f195.google.com (mail-pl1-f195.google.com [209.85.214.195]) by imf24.hostedemail.com (Postfix) with ESMTP for ; Sat, 2 May 2020 14:35:26 +0000 (UTC) Received: by mail-pl1-f195.google.com with SMTP id b6so1525230plz.13 for ; Sat, 02 May 2020 07:35:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=8kpZT85vHMPDfoRsJVsBli9cXP+dX02wUdHl/wOww2M=; b=YQXECGzklur8JPV/Im0glT4lEE0ExOP0qehaqsh8l2SgSyOPHVq81hT+VxxLafAmrU Ynsw4UFd0+RQMO0OHVBaV2PDhH0zJ+0jnyEpOZ3knlwfbdpTpBlr9CvcIU2Rgxd7gk+6 GtPNR3rjyNwRxMXtgvTNk8/lc0e9thJDjIC85s27zL1D4rvJ6bAYWc9MvuPVe6BTV7OQ W57eER7uxt7RlunEbgq6zULF/KEXTdIqgmv+15sGD8czRw0XPDooiWF1Q31zQlJBEbgV 2OYJC29eyHbF4liFZqVf4Xnd113vQDSIlQtG+8R6WX4lM3jrXcwoyDuT0d51SlyW5l1W /aZA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=8kpZT85vHMPDfoRsJVsBli9cXP+dX02wUdHl/wOww2M=; b=UMtY9rDtGnrWkaxMmSJwZHpo/ua6o2MSnupZVsc7IHQqsQwI7fea4aUEh1O+3h5ryw wuQS9srjkgeW94hnqEB/gs5A5NMEqbk3JOAtTyDx5qKILvJeUFyNYUAMzkgC7r571evM bCbCB43zI6UYbD7O9vTSxRFr5wkLOJ/t200H46ltpBjbHEOvr9/aXPpx1CaZm4mieLrn KRgTYMItnrvV1R5mt7mj5v/kfGbB9BT98sMtGavbP2C91MIDOhTXS9wdDRJ91fxoIT3b MiA58ALGeOvKiKvbUm7n3grGIvHwgVc+g0U3zsFVWnXMCkGj2G6+G3g1fKYDVwYGaYMp 3yqg== X-Gm-Message-State: AGi0PuZmVka4qoywy1Lowgv6g//a8lEJhEHmguy6bNYXPWqVO8uLHWX1 QX8aH3Ruk7xk6oCYN2oZ0Kk= X-Google-Smtp-Source: APiQypIP+ZQBo6IluNTEUDHzGx0mAeR2wBAwWLJDoIKVu5u0nJIcv9su88pyzsCs+l2IZZLP6gnlew== X-Received: by 2002:a17:90a:362f:: with SMTP id s44mr6055660pjb.156.1588430125996; Sat, 02 May 2020 07:35:25 -0700 (PDT) Received: from localhost.localdomain ([203.100.54.194]) by smtp.gmail.com with ESMTPSA id o10sm4244867pgb.78.2020.05.02.07.35.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 02 May 2020 07:35:25 -0700 (PDT) From: Yafang Shao To: akpm@linux-foundation.org Cc: shakeelb@google.com, hannes@cmpxchg.org, mhocko@kernel.org, guro@fb.com, gthelen@google.com, linux-mm@kvack.org, Yafang Shao Subject: [PATCH 1/2] mm, memcg: better name mem_cgroup_out_of_memory() Date: Sat, 2 May 2020 10:34:51 -0400 Message-Id: <20200502143452.7640-2-laoar.shao@gmail.com> X-Mailer: git-send-email 2.18.1 In-Reply-To: <20200502143452.7640-1-laoar.shao@gmail.com> References: <20200502143452.7640-1-laoar.shao@gmail.com> X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Rename mem_cgroup_out_of_memory() to mem_cgroup_oom_kill() to indicate that this function is used to try to kill a process. With this change it will cooperate better with the oom events. function memcg event mem_cgroup_oom() oom mem_cgroup_oom_kill() oom_kill Cc: Shakeel Butt Cc: Johannes Weiner Cc: Michal Hocko Cc: Roman Gushchin Cc: Greg Thelen Signed-off-by: Yafang Shao --- mm/memcontrol.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 5beea03dd58a..985edce98491 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1570,7 +1570,7 @@ unsigned long mem_cgroup_size(struct mem_cgroup *memcg) return page_counter_read(&memcg->memory); } -static bool mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask, +static bool mem_cgroup_oom_kill(struct mem_cgroup *memcg, gfp_t gfp_mask, int order) { struct oom_control oc = { @@ -1799,7 +1799,7 @@ static enum oom_status mem_cgroup_oom(struct mem_cgroup *memcg, gfp_t mask, int * relying on the oom victim to make a forward progress and we can * invoke the oom killer here. * - * Please note that mem_cgroup_out_of_memory might fail to find a + * Please note that mem_cgroup_oom_kill might fail to find a * victim and then we have to bail out from the charge path. */ if (memcg->oom_kill_disable) { @@ -1821,7 +1821,7 @@ static enum oom_status mem_cgroup_oom(struct mem_cgroup *memcg, gfp_t mask, int mem_cgroup_oom_notify(memcg); mem_cgroup_unmark_under_oom(memcg); - if (mem_cgroup_out_of_memory(memcg, mask, order)) + if (mem_cgroup_oom_kill(memcg, mask, order)) ret = OOM_SUCCESS; else ret = OOM_FAILED; @@ -1879,7 +1879,7 @@ bool mem_cgroup_oom_synchronize(bool handle) if (locked && !memcg->oom_kill_disable) { mem_cgroup_unmark_under_oom(memcg); finish_wait(&memcg_oom_waitq, &owait.wait); - mem_cgroup_out_of_memory(memcg, current->memcg_oom_gfp_mask, + mem_cgroup_oom_kill(memcg, current->memcg_oom_gfp_mask, current->memcg_oom_order); } else { schedule(); @@ -6102,7 +6102,7 @@ static ssize_t memory_max_write(struct kernfs_open_file *of, } memcg_memory_event(memcg, MEMCG_OOM); - if (!mem_cgroup_out_of_memory(memcg, GFP_KERNEL, 0)) + if (!mem_cgroup_oom_kill(memcg, GFP_KERNEL, 0)) break; } -- 2.18.2