From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e23smtp06.au.ibm.com (e23smtp06.au.ibm.com [202.81.31.148]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e23smtp06.au.ibm.com", Issuer "GeoTrust SSL CA" (not verified)) by ozlabs.org (Postfix) with ESMTPS id B0FC52C00DE for ; Tue, 30 Apr 2013 15:19:22 +1000 (EST) Received: from /spool/local by e23smtp06.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 30 Apr 2013 15:13:18 +1000 Received: from d23relay03.au.ibm.com (d23relay03.au.ibm.com [9.190.235.21]) by d23dlp02.au.ibm.com (Postfix) with ESMTP id AFCA02BB0052 for ; Tue, 30 Apr 2013 15:19:17 +1000 (EST) Received: from d23av04.au.ibm.com (d23av04.au.ibm.com [9.190.235.139]) by d23relay03.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r3U5JArT20709396 for ; Tue, 30 Apr 2013 15:19:11 +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 r3U5JGaU026984 for ; Tue, 30 Apr 2013 15:19:16 +1000 Date: Tue, 30 Apr 2013 15:16:34 +1000 From: David Gibson To: "Aneesh Kumar K.V" Subject: Re: [PATCH -V7 08/18] powerpc: New hugepage directory format Message-ID: <20130430051634.GA20202@truffula.fritz.box> References: <1367177859-7893-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> <1367177859-7893-9-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="VcZjVMblxkg0/8Ur" In-Reply-To: <1367177859-7893-9-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: , --VcZjVMblxkg0/8Ur Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Apr 29, 2013 at 01:07:29AM +0530, Aneesh Kumar K.V wrote: > From: "Aneesh Kumar K.V" >=20 > Change the hugepage directory format so that we can have leaf ptes direct= ly > at page directory avoiding the allocation of hugepage directory. >=20 > With the new table format we have 3 cases for pgds and pmds: > (1) invalid (all zeroes) > (2) pointer to next table, as normal; bottom 6 bits =3D=3D 0 > (4) hugepd pointer, bottom two bits =3D=3D 00, next 4 bits indicate size = of table >=20 > Instead of storing shift value in hugepd pointer we use mmu_psize_def ind= ex > so that we can fit all the supported hugepage size in 4 bits >=20 > Signed-off-by: Aneesh Kumar K.V Looks ok. Reviewed-by: David Gibson --=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 --VcZjVMblxkg0/8Ur Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAlF/U7IACgkQaILKxv3ab8YN3gCeKnNvwfsBdlQsaxOeHcN3Jq7V jEUAnimhVE/KpOz8T8NTKyEuKlpLYFTy =566/ -----END PGP SIGNATURE----- --VcZjVMblxkg0/8Ur--