From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f69.google.com (mail-pg0-f69.google.com [74.125.83.69]) by kanga.kvack.org (Postfix) with ESMTP id 6121B6B0038 for ; Mon, 1 May 2017 10:39:36 -0400 (EDT) Received: by mail-pg0-f69.google.com with SMTP id d11so44791940pgn.9 for ; Mon, 01 May 2017 07:39:36 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org. [65.50.211.133]) by mx.google.com with ESMTPS id x17si2945524pgx.215.2017.05.01.07.39.35 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 01 May 2017 07:39:35 -0700 (PDT) Date: Mon, 1 May 2017 07:39:30 -0700 From: Matthew Wilcox Subject: Re: [PATCH 2/3] mm/slub: wrap cpu_slab->partial in CONFIG_SLUB_CPU_PARTIAL Message-ID: <20170501143930.GJ27790@bombadil.infradead.org> References: <20170430113152.6590-1-richard.weiyang@gmail.com> <20170430113152.6590-3-richard.weiyang@gmail.com> <20170501024103.GI27790@bombadil.infradead.org> <20170501082005.GA2006@WeideMacBook-Pro.local> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170501082005.GA2006@WeideMacBook-Pro.local> Sender: owner-linux-mm@kvack.org List-ID: To: Wei Yang Cc: cl@linux.com, penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com, akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org On Mon, May 01, 2017 at 04:20:05PM +0800, Wei Yang wrote: > I have tried to replace the code with slub_cpu_partial(), it works fine on > most of cases except two: > > 1. slub_cpu_partial(c) = page->next; New accessor: slub_set_cpu_partial(c, p) > 2. page = READ_ONCE(slub_cpu_partial(c)); OK, that one I haven't seen an existing pattern for yet. slub_cpu_partial_read_once(c)? -- 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