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=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,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 D3B89C43381 for ; Wed, 6 Mar 2019 19:20:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A57F620663 for ; Wed, 6 Mar 2019 19:20:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729830AbfCFTU0 (ORCPT ); Wed, 6 Mar 2019 14:20:26 -0500 Received: from shards.monkeyblade.net ([23.128.96.9]:39742 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726425AbfCFTU0 (ORCPT ); Wed, 6 Mar 2019 14:20:26 -0500 Received: from localhost (unknown [IPv6:2601:601:9f80:35cd::d71]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 029451454DBAD; Wed, 6 Mar 2019 11:20:23 -0800 (PST) Date: Wed, 06 Mar 2019 11:20:23 -0800 (PST) Message-Id: <20190306.112023.204648705168304981.davem@davemloft.net> To: alex@ghiti.fr Cc: vbabka@suse.cz, catalin.marinas@arm.com, will.deacon@arm.com, benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au, schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com, ysato@users.sourceforge.jp, dalias@libc.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, x86@kernel.org, dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org, mike.kravetz@oracle.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH v5 4/4] hugetlb: allow to free gigantic pages regardless of the configuration From: David Miller In-Reply-To: <20190306190005.7036-5-alex@ghiti.fr> References: <20190306190005.7036-1-alex@ghiti.fr> <20190306190005.7036-5-alex@ghiti.fr> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Wed, 06 Mar 2019 11:20:24 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Alexandre Ghiti Date: Wed, 6 Mar 2019 14:00:05 -0500 > On systems without CONTIG_ALLOC activated but that support gigantic pages, > boottime reserved gigantic pages can not be freed at all. This patch > simply enables the possibility to hand back those pages to memory > allocator. > > Signed-off-by: Alexandre Ghiti For sparc: Acked-by: David S. Miller