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[2620:137:e000::1:20]) by mx.google.com with ESMTP id np11-20020a17090b4c4b00b001fa63199641si2320302pjb.181.2022.08.17.09.53.10; Wed, 17 Aug 2022 09:53:23 -0700 (PDT) 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=@linux-foundation.org header.s=korg header.b=fB13grRc; 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240236AbiHQQCx (ORCPT + 99 others); Wed, 17 Aug 2022 12:02:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43790 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240243AbiHQQCw (ORCPT ); Wed, 17 Aug 2022 12:02:52 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EA0E49E2C7 for ; Wed, 17 Aug 2022 09:02:50 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 52622B81C83 for ; Wed, 17 Aug 2022 16:02:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CB506C433D6; Wed, 17 Aug 2022 16:02:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1660752168; bh=3UdwnNUZwdXFDg8LnAxqtXZ5ba2/AOzmihq8V8tBfmk=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=fB13grRcIyPXjYpP17x07Wyec960L6xilhbIxcL2F3z8CG1Ppq2OinKV/8NhE4F3a 304UcPEJY+2qu953d6eL60r/rn4TWOkoAP+zqVq/qZgHLx/bxBsIekM4P3HJBymtPt PI4jyNojFovzUad+TkmeBD/tr1dORzphJYGjtfuA= Date: Wed, 17 Aug 2022 09:02:47 -0700 From: Andrew Morton To: Pratyush Brahma Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, quic_charante@quicinc.com, Pratyush Brahma Subject: Re: [PATCH v2] mm: oom_kill: add trace logs in process_mrelease() system call Message-Id: <20220817090247.ef99115ca7a6c847f90dc4c6@linux-foundation.org> In-Reply-To: <20220816060017.17996-1-pbrahma@qti.qualcomm.com> References: <20220816060017.17996-1-pbrahma@qti.qualcomm.com> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED 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 On Tue, 16 Aug 2022 11:30:17 +0530 Pratyush Brahma wrote: > From: Charan Teja Kalla > > The process_mrelease() system call[1] is used to release the memory of > a dying process from the context of the caller, which is similar to and > uses the functions of the oom reaper logic. There exists trace logs for > a process when reaped by the oom reaper. Just extend the same to when > done by the process_mrelease() system call. > > ... > > + pr_debug("process_mrelease: reaped process %d (%s), now anon-rss:%lukB, file-rss:%lukB, shmem-rss:%lukB\n", > + task_pid_nr(task), task->comm, > + K(get_mm_counter(mm, MM_ANONPAGES)), > + K(get_mm_counter(mm, MM_FILEPAGES)), > + K(get_mm_counter(mm, MM_SHMEMPAGES))); This addition wasn't changelogged. It's the only pr_debug in oom_kill.c. Please explain?