From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 3 Nov 1999 14:32:54 -0500 (EST) From: "Benjamin C.R. LaHaise" Subject: Re: Why don't we make mmap MAP_SHARED with /dev/zero possible? In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Ingo Molnar Cc: fxzhang@chpc.ict.ac.cn, "linux-mm@kvack.org" List-ID: On Wed, 3 Nov 1999, Ingo Molnar wrote: > it's now an unconditional __GFP_HIGHMEM in my tree. HIGHMEM gfp() > allocation automatically falls back to allocate in lowmem, if highmem > lists are empty. I'd like to look through the patches to see how you're doing things before making any comments. Specifically, I want to look at the buffer head address thing that was mentioned -- given that the devices that support addressing memory above 4G will expect a 64 bit address, I don't think the shift is the right way to go. -ben -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://humbolt.geo.uu.nl/Linux-MM/