From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 10 Oct 2006 23:00:42 -0700 From: Andrew Morton Subject: Re: [patch 2/5] mm: fault vs invalidate/truncate race fix Message-Id: <20061010230042.3d4e4df1.akpm@osdl.org> In-Reply-To: <452C838A.70806@yahoo.com.au> References: <20061010121314.19693.75503.sendpatchset@linux.site> <20061010121332.19693.37204.sendpatchset@linux.site> <20061010213843.4478ddfc.akpm@osdl.org> <452C838A.70806@yahoo.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Nick Piggin Cc: Nick Piggin , Linux Memory Management , Linux Kernel , Linus Torvalds List-ID: On Wed, 11 Oct 2006 15:39:22 +1000 Nick Piggin wrote: > But I see that it does read twice. Do you want that behaviour retained? It > seems like at this level it would be logical to read it once and let lower > layers take care of any retries? argh. Linus has good-sounding reasons for retrying the pagefault-path's read a single time, but I forget what they are. Something to do with networked filesystems? (adds cc) -- 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