From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 22 Oct 2002 14:29:52 -0500 From: Dave McCracken Subject: Re: [PATCH 2.5.43-mm2] New shared page table patch Message-ID: <190260000.1035314992@baldur.austin.ibm.com> In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linux-mm@kvack.org Return-Path: To: Gerrit Huizenga , Andrew Morton Cc: Rik van Riel , "Eric W. Biederman" , "Martin J. Bligh" , Bill Davidsen , Linux Kernel , Linux Memory Management List-ID: --On Tuesday, October 22, 2002 12:06:29 -0700 Gerrit Huizenga wrote: > If the shared pte patch had mmap support, then all shared libraries > would benefit. Might need to align them to 4 MB boundaries for best > results, which would also be easy for libraries with unspecified > attach addresses (e.g. most shared libraries). Shared page tables do support mmap, but only for areas that are marked shared. Private mappings are only shared at fork time. If shared libraries are mapped shared, then shared page tables will actively share pte pages for them. Dave McCracken ====================================================================== Dave McCracken IBM Linux Base Kernel Team 1-512-838-3059 dmccr@us.ibm.com T/L 678-3059 -- 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/