From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qa0-f51.google.com (mail-qa0-f51.google.com [209.85.216.51]) by kanga.kvack.org (Postfix) with ESMTP id 317276B0074 for ; Sun, 16 Nov 2014 19:15:46 -0500 (EST) Received: by mail-qa0-f51.google.com with SMTP id k15so2379270qaq.38 for ; Sun, 16 Nov 2014 16:15:45 -0800 (PST) Received: from tyo202.gate.nec.co.jp (TYO202.gate.nec.co.jp. [210.143.35.52]) by mx.google.com with ESMTPS id j6si44914706qaz.30.2014.11.16.16.15.34 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Sun, 16 Nov 2014 16:15:35 -0800 (PST) From: Naoya Horiguchi Subject: Re: [PATCH 1/3] hugetlb: fix hugepages= entry in kernel-parameters.txt Date: Mon, 17 Nov 2014 00:11:17 +0000 Message-ID: <20141117001154.GA4667@hori1.linux.bs1.fc.nec.co.jp> References: <1415831593-9020-1-git-send-email-lcapitulino@redhat.com> <1415831593-9020-2-git-send-email-lcapitulino@redhat.com> In-Reply-To: <1415831593-9020-2-git-send-email-lcapitulino@redhat.com> Content-Language: ja-JP Content-Type: text/plain; charset="iso-2022-jp" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: Luiz Capitulino Cc: "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , "akpm@linux-foundation.org" , "andi@firstfloor.org" , "rientjes@google.com" , "riel@redhat.com" , "isimatu.yasuaki@jp.fujitsu.com" , "yinghai@kernel.org" , "davidlohr@hp.com" On Wed, Nov 12, 2014 at 05:33:11PM -0500, Luiz Capitulino wrote: > The hugepages=3D entry in kernel-parameters.txt states that > 1GB pages can only be allocated at boot time and not > freed afterwards. This is not true since commit > 944d9fec8d7aee, at least for x86_64. >=20 > Instead of adding arch-specifc observations to the > hugepages=3D entry, this commit just drops the out of date > information. Further information about arch-specific > support and available features can be obtained in the > hugetlb documentation. >=20 > Signed-off-by: Luiz Capitulino Acked-by: Naoya Horiguchi > --- > Documentation/kernel-parameters.txt | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) >=20 > diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-p= arameters.txt > index 479f332..d919af0 100644 > --- a/Documentation/kernel-parameters.txt > +++ b/Documentation/kernel-parameters.txt > @@ -1228,9 +1228,7 @@ bytes respectively. Such letter suffixes can also b= e entirely omitted. > multiple times interleaved with hugepages=3D to reserve > huge pages of different sizes. Valid pages sizes on > x86-64 are 2M (when the CPU supports "pse") and 1G > - (when the CPU supports the "pdpe1gb" cpuinfo flag) > - Note that 1GB pages can only be allocated at boot time > - using hugepages=3D and not freed afterwards. > + (when the CPU supports the "pdpe1gb" cpuinfo flag). > =20 > hvc_iucv=3D [S390] Number of z/VM IUCV hypervisor console (HVC) > terminal devices. Valid values: 0..8 > --=20 > 1.9.3 >=20 > -- > 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 = -- 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