From patchwork Tue Jan 26 18:14:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Hildenbrand X-Patchwork-Id: 12047641 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=-18.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 ABCDDC433DB for ; Tue, 26 Jan 2021 18:14:36 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 4BCAF207BC for ; Tue, 26 Jan 2021 18:14:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4BCAF207BC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 8C52A8D00FD; Tue, 26 Jan 2021 13:14:35 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 874768D00F8; Tue, 26 Jan 2021 13:14:35 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 78A828D00FD; Tue, 26 Jan 2021 13:14:35 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0155.hostedemail.com [216.40.44.155]) by kanga.kvack.org (Postfix) with ESMTP id 628788D00F8 for ; Tue, 26 Jan 2021 13:14:35 -0500 (EST) Received: from smtpin16.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 1873B363B for ; Tue, 26 Jan 2021 18:14:35 +0000 (UTC) X-FDA: 77748726510.16.dock25_2f0d32727590 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin16.hostedemail.com (Postfix) with ESMTP id DF5A3100E6903 for ; Tue, 26 Jan 2021 18:14:34 +0000 (UTC) X-HE-Tag: dock25_2f0d32727590 X-Filterd-Recvd-Size: 3665 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [63.128.21.124]) by imf41.hostedemail.com (Postfix) with ESMTP for ; Tue, 26 Jan 2021 18:14:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1611684873; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=86V3O1CpDYfjlF8VjAknPG5EI+Zpfg6lv7tE22Cqg3g=; b=L49rzUYruEK0goKr/DxqkeT9GsXmpqZiQe4cybZOhAH7H/D3UeW/ChpRTxI0WoFDstnMdQ nuoZvG+Ibooiwd8G8K8CO+Wr8ix1bhQK6jIfEl1ESY9lU+JL8NFOOd+RyDECDyvwvZ+3aN RzBsEWJBg7m625r0b82F3b/DvsX04P8= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-486-wTu-Vj2-Pp6aojRBEV30Zw-1; Tue, 26 Jan 2021 13:14:28 -0500 X-MC-Unique: wTu-Vj2-Pp6aojRBEV30Zw-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 58441107ACFE; Tue, 26 Jan 2021 18:14:26 +0000 (UTC) Received: from t480s.redhat.com (ovpn-114-192.ams2.redhat.com [10.36.114.192]) by smtp.corp.redhat.com (Postfix) with ESMTP id E96E36F991; Tue, 26 Jan 2021 18:14:20 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linux-csky@vger.kernel.org, David Hildenbrand , Andrew Morton , Guo Ren , Mike Rapoport , Oscar Salvador , Michal Hocko , Wei Yang Subject: [PATCH v1] csky: use free_initmem_default() in free_initmem() Date: Tue, 26 Jan 2021 19:14:20 +0100 Message-Id: <20210126181420.19223-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 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: The existing code is essentially free_initmem_default()->free_reserved_area() without poisoning. Note that existing code missed to update the managed page count of the zone. Cc: Andrew Morton Cc: Guo Ren Cc: Mike Rapoport Cc: Oscar Salvador Cc: Michal Hocko Cc: Wei Yang Signed-off-by: David Hildenbrand --- Not compile tested as documentation on how to get https://gitlab.com/c-sky/buildroot running, especially with a custom kernel, is a bit sparse. --- arch/csky/mm/init.c | 17 +---------------- 1 file changed, 1 insertion(+), 16 deletions(-) diff --git a/arch/csky/mm/init.c b/arch/csky/mm/init.c index 81e4e5e78f38..894050a8ce09 100644 --- a/arch/csky/mm/init.c +++ b/arch/csky/mm/init.c @@ -110,24 +110,9 @@ void __init mem_init(void) mem_init_print_info(NULL); } -extern char __init_begin[], __init_end[]; - void free_initmem(void) { - unsigned long addr; - - addr = (unsigned long) &__init_begin; - - while (addr < (unsigned long) &__init_end) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - totalram_pages_inc(); - addr += PAGE_SIZE; - } - - pr_info("Freeing unused kernel memory: %dk freed\n", - ((unsigned int)&__init_end - (unsigned int)&__init_begin) >> 10); + free_initmem_default(-1); } void pgd_init(unsigned long *p)