Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753237Ab0ATQzG (ORCPT ); Wed, 20 Jan 2010 11:55:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752748Ab0ATQzF (ORCPT ); Wed, 20 Jan 2010 11:55:05 -0500 Received: from caramon.arm.linux.org.uk ([78.32.30.218]:47638 "EHLO caramon.arm.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753173Ab0ATQzB (ORCPT ); Wed, 20 Jan 2010 11:55:01 -0500 Date: Wed, 20 Jan 2010 16:54:44 +0000 From: Russell King To: Geert Uytterhoeven Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [CFT] MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself Message-ID: <20100120165443.GB3284@flint.arm.linux.org.uk> Mail-Followup-To: Geert Uytterhoeven , linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org References: <20100120135202.GA20937@flint.arm.linux.org.uk> <10f740e81001200845o7a31bcb6yea475f3aabcb5476@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <10f740e81001200845o7a31bcb6yea475f3aabcb5476@mail.gmail.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1568 Lines: 35 On Wed, Jan 20, 2010 at 05:45:34PM +0100, Geert Uytterhoeven wrote: > > diff --git a/Documentation/cachetlb.txt b/Documentation/cachetlb.txt > > index da42ab4..74a8b6f 100644 > > --- a/Documentation/cachetlb.txt > > +++ b/Documentation/cachetlb.txt > > @@ -88,12 +88,12 @@ changes occur: > > ? ? ? ?This is used primarily during fault processing. > > > > ?5) void update_mmu_cache(struct vm_area_struct *vma, > > - ? ? ? ? ? ? ? ? ? ? ? ?unsigned long address, pte_t pte) > > + ? ? ? ? ? ? ? ? ? ? ? ?unsigned long address, pte_t *ptep) > > > > ? ? ? ?At the end of every page fault, this routine is invoked to > > ? ? ? ?tell the architecture specific code that a translation > > - ? ? ? described by "pte" now exists at virtual address "address" > > - ? ? ? for address space "vma->vm_mm", in the software page tables. > > + ? ? ? now exists at virtual address "address" for address space > > + ? ? ? "vma->vm_mm", in the software page tables. > > > > ? ? ? ?A port may use this information in any way it so chooses. > > ? ? ? ?For example, it could use this event to pre-load TLB > > Now the documentation no longer mentions what the 3rd parameter is used for? I'm open to suggestions for a suitable description for it. -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: -- 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/