From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 23 Jun 2003 00:56:23 -0700 From: Andrew Morton Subject: Re: [PATCH] Fix vmtruncate race and distributed filesystem race Message-Id: <20030623005623.5fe1ab30.akpm@digeo.com> In-Reply-To: <20030623074353.GE19940@dualathlon.random> References: <133430000.1055448961@baldur.austin.ibm.com> <20030612134946.450e0f77.akpm@digeo.com> <20030612140014.32b7244d.akpm@digeo.com> <150040000.1055452098@baldur.austin.ibm.com> <20030612144418.49f75066.akpm@digeo.com> <184910000.1055458610@baldur.austin.ibm.com> <20030620001743.GI18317@dualathlon.random> <20030623032842.GA1167@us.ibm.com> <20030622233235.0924364d.akpm@digeo.com> <20030623074353.GE19940@dualathlon.random> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Andrea Arcangeli Cc: paulmck@us.ibm.com, dmccr@us.ibm.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: Andrea Arcangeli wrote: > > that will finally close the race Could someone please convince me that we really _need_ to close it? The VM handles the whacky pages OK (on slowpaths), and when this first came up two years ago it was argued that the application was racy/buggy anyway. So as long as we're secure and stable, we don't care. Certainly not to the point of adding more atomic ops on the fastpath. So... what bug are we actually fixing here? (I'd also like to see a clearer description of the distributed fs problem, and how this fixes it). Thanks. -- 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: aart@kvack.org