From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e23smtp05.au.ibm.com (e23smtp05.au.ibm.com [202.81.31.147]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e23smtp05.au.ibm.com", Issuer "GeoTrust SSL CA" (not verified)) by ozlabs.org (Postfix) with ESMTPS id C86292C00C5 for ; Thu, 11 Apr 2013 16:18:47 +1000 (EST) Received: from /spool/local by e23smtp05.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 11 Apr 2013 16:13:59 +1000 Received: from d23relay05.au.ibm.com (d23relay05.au.ibm.com [9.190.235.152]) by d23dlp01.au.ibm.com (Postfix) with ESMTP id 877322CE804D for ; Thu, 11 Apr 2013 16:18:43 +1000 (EST) Received: from d23av04.au.ibm.com (d23av04.au.ibm.com [9.190.235.139]) by d23relay05.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r3B65FPw9568736 for ; Thu, 11 Apr 2013 16:05:15 +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 r3B6IgKg006574 for ; Thu, 11 Apr 2013 16:18:43 +1000 Date: Thu, 11 Apr 2013 16:18:35 +1000 From: David Gibson To: "Aneesh Kumar K.V" 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" In-Reply-To: <1365055083-31956-19-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Cc: paulus@samba.org, linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --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--