From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 1 Feb 2005 10:47:30 -0800 (PST) From: Christoph Lameter Subject: Re: page fault scalability patch V16 [3/4]: Drop page_table_lock in handle_mm_fault In-Reply-To: <41FF00CE.8060904@yahoo.com.au> Message-ID: References: <41E5B7AD.40304@yahoo.com.au> <41E5BC60.3090309@yahoo.com.au> <20050113031807.GA97340@muc.de> <20050113180205.GA17600@muc.de> <20050114043944.GB41559@muc.de> <20050114170140.GB4634@muc.de> <41FF00CE.8060904@yahoo.com.au> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Nick Piggin Cc: Andi Kleen , Andrew Morton , torvalds@osdl.org, hugh@veritas.com, linux-mm@kvack.org, linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org, benh@kernel.crashing.org List-ID: On Tue, 1 Feb 2005, Nick Piggin wrote: > Slightly OT: are you still planning to move the update_mem_hiwater and > friends crud out of these fastpaths? It looks like at least that function > is unsafe to be lockless. Yes. I have a patch pending and the author of the CSA patches is a cowoerker of mine. The patch will be resubmitted once certain aspects of the timer subsystem are stabilized and/or when he gets back from his vacation. The statistics are not critical to system operation. -- 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