From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail190.messagelabs.com (mail190.messagelabs.com [216.82.249.51]) by kanga.kvack.org (Postfix) with SMTP id 581B56B004D for ; Tue, 10 Nov 2009 17:29:31 -0500 (EST) Date: Tue, 10 Nov 2009 22:29:28 +0000 (GMT) From: Hugh Dickins Subject: Re: [PATCH 5/6] mm: stop ptlock enlarging struct page In-Reply-To: <1257891277.4108.498.camel@laptop> Message-ID: References: <1257891277.4108.498.camel@laptop> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org To: Peter Zijlstra Cc: Hugh Dickins , Andrew Morton , Izik Eidus , Andrea Arcangeli , Christoph Lameter , linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: On Tue, 10 Nov 2009, Peter Zijlstra wrote: > > fwiw, in -rt we carry this, because there spinlock_t is huge even > without lockdep. Thanks, I may want to consider that; but I'm not keen on darting off to another cacheline even for the non-debug spinlock case. Hugh -- 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