From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 9 Aug 2005 20:41:00 +0100 From: Russell King Subject: Re: [RFC][patch 0/2] mm: remove PageReserved Message-ID: <20050809204100.B29945@flint.arm.linux.org.uk> References: <42F57FCA.9040805@yahoo.com.au> <200508090710.00637.phillips@arcor.de> <1123562392.4370.112.camel@localhost> <42F83849.9090107@yahoo.com.au> <20050809080853.A25492@flint.arm.linux.org.uk> <523240000.1123598289@[10.10.2.4]> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <523240000.1123598289@[10.10.2.4]>; from mbligh@mbligh.org on Tue, Aug 09, 2005 at 07:38:52AM -0700 Sender: owner-linux-mm@kvack.org Return-Path: To: "Martin J. Bligh" Cc: Nick Piggin , ncunningham@cyclades.com, Daniel Phillips , Linux Kernel Mailing List , Linux Memory Management , Hugh Dickins , Linus Torvalds , Andrew Morton , Andrea Arcangeli , Benjamin Herrenschmidt List-ID: On Tue, Aug 09, 2005 at 07:38:52AM -0700, Martin J. Bligh wrote: > pfn_valid() doesn't tell you it's RAM or not - it tells you whether you > have a backing struct page for that address. Could be an IO mapped device, > a small memory hole, whatever. The only things which have a struct page is RAM. Nothing else does. -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 Serial core -- 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/ . Don't email: email@kvack.org