From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: [PATCH 3/8] inode: convert inode_sb_list_lock to per-sb Date: Wed, 17 Jun 2015 05:06:10 -0700 Message-ID: <20150617120610.GC20286@infradead.org> References: <1434051673-13838-1-git-send-email-jbacik@fb.com> <1434051673-13838-4-git-send-email-jbacik@fb.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-fsdevel@vger.kernel.org, kernel-team@fb.com, viro@ZenIV.linux.org.uk, hch@infradead.org, jack@suse.cz, david@fromorbit.com, Dave Chinner To: Josef Bacik Return-path: Received: from bombadil.infradead.org ([198.137.202.9]:42909 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752888AbbFQMGL (ORCPT ); Wed, 17 Jun 2015 08:06:11 -0400 Content-Disposition: inline In-Reply-To: <1434051673-13838-4-git-send-email-jbacik@fb.com> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Thu, Jun 11, 2015 at 03:41:08PM -0400, Josef Bacik wrote: > From: Dave Chinner > > The process of reducing contention on per-superblock inode lists > starts with moving the locking to match the per-superblock inode > list. This takes the global lock out of the picture and reduces the > contention problems to within a single filesystem. This doesn't get > rid of contention as the locks still have global CPU scope, but it > does isolate operations on different superblocks form each other. Looks good, Reviewed-by: Christoph Hellwig