Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754063AbZCJIFA (ORCPT ); Tue, 10 Mar 2009 04:05:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753252AbZCJIEq (ORCPT ); Tue, 10 Mar 2009 04:04:46 -0400 Received: from gmp-eb-inf-1.sun.com ([192.18.6.21]:34701 "EHLO gmp-eb-inf-1.sun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753244AbZCJIEp (ORCPT ); Tue, 10 Mar 2009 04:04:45 -0400 MIME-version: 1.0 Date: Tue, 10 Mar 2009 09:04:19 +0100 From: Frank Mehnert Subject: Re: remap_pfn_range() not suitable for physical RAM? In-reply-to: <200903042025.46861.frank.mehnert@sun.com> To: linux-kernel@vger.kernel.org Cc: peterz@infradead.org, suresh.b.siddha@intel.com Message-id: <200903100904.22753.frank.mehnert@sun.com> Organization: Sun Microsystems Content-type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary=nextPart3251115.IUt3qJTegk Content-transfer-encoding: 7BIT References: <200903042025.46861.frank.mehnert@sun.com> User-Agent: KMail/1.9.9 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1447 Lines: 44 --nextPart3251115.IUt3qJTegk Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hi, sorry for re-posting this message and sorry for addressing you directly. Perhaps you can help me again or can you give me a pointer for a proper documentation of the various *remap* and *vm_insert* functions: On Wednesday 04 March 2009, Frank Mehnert wrote: > since 2.6.29-rcX it seems to be not allowed anymore to use > remap_pfn_range() to remap physical RAM to userland. This restriction > applies only if CONFIG_X86_PAT is enabled. It seems that vm_insert_page() > does not have this restriction. Am I correct? And what is the reason > for this restriction? Kind regards, =46rank =2D-=20 Dr.-Ing. Frank Mehnert Sun Microsystems http://www.sun.com/ --nextPart3251115.IUt3qJTegk Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEABECAAYFAkm2HwMACgkQ6z8pigLf3EfwuACfVK+LGpDachLCjdUmhtJoEbrl i/MAniC8a1VB9eZ20zbWlocGlhkt9Ow2 =a2YC -----END PGP SIGNATURE----- --nextPart3251115.IUt3qJTegk-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/