From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sun, 22 Jun 2008 11:18:07 -0700 (PDT) From: Linus Torvalds Subject: Re: [patch] mm: fix race in COW logic In-Reply-To: Message-ID: References: <20080622153035.GA31114@wotan.suse.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Hugh Dickins Cc: Nick Piggin , Linux Memory Management List , Andrew Morton List-ID: On Sun, 22 Jun 2008, Hugh Dickins wrote: > > I'm puzzled. No, you're right. It was me who was confused. The pages are different, duh, and yes, there's a SMP memory ordering issue between updating the new page table entry and decrementing the use count for the old page. My bad. Ignore me. Linus -- 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