From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it0-f69.google.com (mail-it0-f69.google.com [209.85.214.69]) by kanga.kvack.org (Postfix) with ESMTP id BB0BF6B0385 for ; Wed, 21 Dec 2016 03:09:33 -0500 (EST) Received: by mail-it0-f69.google.com with SMTP id o141so131314381itc.1 for ; Wed, 21 Dec 2016 00:09:33 -0800 (PST) Received: from merlin.infradead.org (merlin.infradead.org. [2001:4978:20e::2]) by mx.google.com with ESMTPS id r137si10213491itr.2.2016.12.21.00.09.33 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 21 Dec 2016 00:09:33 -0800 (PST) Date: Wed, 21 Dec 2016 09:09:31 +0100 From: Peter Zijlstra Subject: Re: [RFC][PATCH] make global bitlock waitqueues per-node Message-ID: <20161221080931.GQ3124@twins.programming.kicks-ass.net> References: <20161219225826.F8CB356F@viggo.jf.intel.com> <156a5b34-ad3b-d0aa-83c9-109b366c1bdf@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Linus Torvalds Cc: Dave Hansen , Bob Peterson , Linux Kernel Mailing List , Steven Whitehouse , Andrew Lutomirski , Andreas Gruenbacher , Mel Gorman , linux-mm On Tue, Dec 20, 2016 at 10:02:46AM -0800, Linus Torvalds wrote: > On Tue, Dec 20, 2016 at 9:31 AM, Linus Torvalds > wrote: > > > > I'll go back and try to see why the page flag contention patch didn't > > get applied. > > Ahh, a combination of warring patches by Nick and PeterZ, and worry > about the page flag bits. I think Nick actually had a patch freeing up a pageflag, although Hugh had a comment on that. That said, I'm not a huge fan of his waiters patch, I'm still not sure why he wants to write another whole wait loop, but whatever. Whichever you prefer I suppose. -- 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