From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx116.postini.com [74.125.245.116]) by kanga.kvack.org (Postfix) with SMTP id 759626B0005 for ; Thu, 11 Apr 2013 02:19:19 -0400 (EDT) Received: from /spool/local by e23smtp04.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 11 Apr 2013 16:07:58 +1000 Received: from d23relay04.au.ibm.com (d23relay04.au.ibm.com [9.190.234.120]) by d23dlp03.au.ibm.com (Postfix) with ESMTP id 6D4A43578050 for ; Thu, 11 Apr 2013 16:19:13 +1000 (EST) Received: from d23av04.au.ibm.com (d23av04.au.ibm.com [9.190.235.139]) by d23relay04.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r3B65Op155640152 for ; Thu, 11 Apr 2013 16:05:24 +1000 Received: from d23av04.au.ibm.com (loopback [127.0.0.1]) by d23av04.au.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r3B6IgKc006574 for ; Thu, 11 Apr 2013 16:18:43 +1000 Date: Thu, 11 Apr 2013 16:18:35 +1000 From: David Gibson Subject: Re: [PATCH -V5 18/25] powerpc/THP: Double the PMD table size for THP Message-ID: <20130411061835.GH8165@truffula.fritz.box> References: <1365055083-31956-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> <1365055083-31956-19-git-send-email-aneesh.kumar@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="kUr9BK2/TCCh1PYv" Content-Disposition: inline In-Reply-To: <1365055083-31956-19-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Sender: owner-linux-mm@kvack.org List-ID: To: "Aneesh Kumar K.V" Cc: benh@kernel.crashing.org, paulus@samba.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org --kUr9BK2/TCCh1PYv Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Apr 04, 2013 at 11:27:56AM +0530, Aneesh Kumar K.V wrote: > From: "Aneesh Kumar K.V" >=20 > THP code does PTE page allocation along with large page request and depos= it them > for later use. This is to ensure that we won't have any failures when we = split > hugepages to regular pages. >=20 > On powerpc we want to use the deposited PTE page for storing hash pte slo= t and > secondary bit information for the HPTEs. We use the second half > of the pmd table to save the deposted PTE page. The previous patch accesses data in that second half of the PMD table, so this patch should go before it. --=20 David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson --kUr9BK2/TCCh1PYv Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAlFmVbsACgkQaILKxv3ab8Z7igCfQFP08UqGTcSoCvL7Uoh0gh2a hC0AnjGnaz4B06XmMwdlMbPxCxqJdSkB =iQxQ -----END PGP SIGNATURE----- --kUr9BK2/TCCh1PYv-- -- 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