From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kent Overstreet Subject: Re: [PATCH 20/32] aio: Give shared kioctx fields their own cachelines Date: Mon, 7 Jan 2013 15:48:20 -0800 Message-ID: <20130107234820.GJ26407@google.com> References: <1356573611-18590-1-git-send-email-koverstreet@google.com> <1356573611-18590-23-git-send-email-koverstreet@google.com> <20130103152512.009513a1.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-kernel@vger.kernel.org, linux-aio@kvack.org, linux-fsdevel@vger.kernel.org, zab@redhat.com, bcrl@kvack.org, jmoyer@redhat.com, axboe@kernel.dk, viro@zeniv.linux.org.uk, tytso@mit.edu To: Andrew Morton Return-path: Content-Disposition: inline In-Reply-To: <20130103152512.009513a1.akpm@linux-foundation.org> Sender: owner-linux-aio@kvack.org List-Id: linux-fsdevel.vger.kernel.org On Thu, Jan 03, 2013 at 03:25:12PM -0800, Andrew Morton wrote: > On Wed, 26 Dec 2012 17:59:59 -0800 > Kent Overstreet wrote: > > > struct { > > - struct mutex ring_lock; > > + atomic_t reqs_active; > > } ____cacheline_aligned; > > Is there a reason why this guy remains aligned on CONFIG_SMP=n? No good one, but I see you've already fixed it in your tree. -- To unsubscribe, send a message with 'unsubscribe linux-aio' in the body to majordomo@kvack.org. For more info on Linux AIO, see: http://www.kvack.org/aio/ Don't email: aart@kvack.org