From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f69.google.com (mail-wm0-f69.google.com [74.125.82.69]) by kanga.kvack.org (Postfix) with ESMTP id BFBB56B0253 for ; Fri, 19 Aug 2016 07:21:10 -0400 (EDT) Received: by mail-wm0-f69.google.com with SMTP id l4so16005821wml.0 for ; Fri, 19 Aug 2016 04:21:10 -0700 (PDT) Received: from mail-wm0-f67.google.com (mail-wm0-f67.google.com. [74.125.82.67]) by mx.google.com with ESMTPS id cf10si5892801wjc.162.2016.08.19.04.21.09 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 19 Aug 2016 04:21:09 -0700 (PDT) Received: by mail-wm0-f67.google.com with SMTP id i5so3035922wmg.2 for ; Fri, 19 Aug 2016 04:21:09 -0700 (PDT) Date: Fri, 19 Aug 2016 13:21:08 +0200 From: Michal Hocko Subject: Re: [RFC PATCH] arm64/hugetlb enable gigantic hugepage Message-ID: <20160819112107.GG32619@dhcp22.suse.cz> References: <1471521929-9207-1-git-send-email-xieyisheng1@huawei.com> <20160819102551.GA32632@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Yisheng Xie Cc: akpm@linux-foundation.org, guohanjun@huawei.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org On Fri 19-08-16 19:08:51, Yisheng Xie wrote: > > > On 2016/8/19 18:25, Michal Hocko wrote: > > On Thu 18-08-16 20:05:29, Xie Yisheng wrote: > >> As we know, arm64 also support gigantic hugepage eg. 1G. > > > > Well, I do not know that. How can I check? > > > Hi Michal, > Thank you for your reply. > Maybe you can check the setup_hugepagesz() OK, I see. The support was added by 084bd29810a5 ("ARM64: mm: HugeTLB support.") in 3.11 but this got later broken. I suspect 944d9fec8d7a ("hugetlb: add support for gigantic page allocation at runtime") in 3.16 but this would require double checking. Information like this would be really helpful in the changelog... -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org