From patchwork Tue Jun 29 02:41:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 12349171 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 9FF8AC11F66 for ; Tue, 29 Jun 2021 02:41:04 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 712B861D0B for ; Tue, 29 Jun 2021 02:41:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 712B861D0B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id C8AF58D0109; Mon, 28 Jun 2021 22:41:03 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C13788D00F0; Mon, 28 Jun 2021 22:41:03 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id ADD718D0109; Mon, 28 Jun 2021 22:41:03 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0206.hostedemail.com [216.40.44.206]) by kanga.kvack.org (Postfix) with ESMTP id 7DDE98D00F0 for ; Mon, 28 Jun 2021 22:41:03 -0400 (EDT) Received: from smtpin23.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 8435817AAC for ; Tue, 29 Jun 2021 02:41:03 +0000 (UTC) X-FDA: 78305209206.23.24E3A6C Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf15.hostedemail.com (Postfix) with ESMTP id 3CC5BA0010D2 for ; Tue, 29 Jun 2021 02:41:03 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 6BB27611AE; Tue, 29 Jun 2021 02:41:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1624934462; bh=Og8hvzmrqDGRHNjupM5x/PxRv81RzmSZ3EU0NZS3MXI=; h=Date:From:To:Subject:In-Reply-To:From; b=SRbfkvMSG8pFkndfT9sFqKfMBJC5FrL0jA2gVYO5A5hP2XlWSQey0scnz2SsVhPYQ WIJTxQsa58VfFM4at5x83XMPNNApoosI/JDKCpDf83yspapDlfJALFKVnWHr2RmSXN 3mU7oFKrB3r7OJtk6PS9+WYVYuGgihe+DCuCi8c8= Date: Mon, 28 Jun 2021 19:41:02 -0700 From: Andrew Morton To: akpm@linux-foundation.org, js07.lee@samsung.com, linux-mm@kvack.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 148/192] mm: report which part of mem is being freed on initmem case Message-ID: <20210629024102.5LVKYwTtW%akpm@linux-foundation.org> In-Reply-To: <20210628193256.008961950a714730751c1423@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 3CC5BA0010D2 Authentication-Results: imf15.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=SRbfkvMS; spf=pass (imf15.hostedemail.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none X-Stat-Signature: akm9ra16btxfxczeb7ozb5p3czkgruac X-HE-Tag: 1624934463-319451 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: From: Jungseung Lee Subject: mm: report which part of mem is being freed on initmem case Add the details for figuring out which parts of the kernel image is being freed on initmem case. Before: Freeing unused kernel memory: 1024K After: Freeing unused kernel image (initmem) memory: 1024K Link: https://lkml.kernel.org/r/1622706274-4533-1-git-send-email-js07.lee@samsung.com Signed-off-by: Jungseung Lee Reviewed-by: Andrew Morton Signed-off-by: Andrew Morton --- include/linux/mm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/include/linux/mm.h~mm-report-which-part-of-mem-is-being-freed-on-initmem-case +++ a/include/linux/mm.h @@ -2416,7 +2416,7 @@ static inline unsigned long free_initmem extern char __init_begin[], __init_end[]; return free_reserved_area(&__init_begin, &__init_end, - poison, "unused kernel"); + poison, "unused kernel image (initmem)"); } static inline unsigned long get_num_physpages(void)