From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Monakhov Subject: [PATCH 0/3] ext4/quota: journalled quota optimizations Date: Sat, 27 Mar 2010 15:15:37 +0300 Message-ID: <1269692140-5375-1-git-send-email-dmonakhov@openvz.org> Cc: linux-fsdevel@vger.kernel.org, jack@suse.cz, Dmitry Monakhov To: linux-ext4@vger.kernel.org Return-path: Received: from mail-bw0-f209.google.com ([209.85.218.209]:45575 "EHLO mail-bw0-f209.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752926Ab0C0MPx (ORCPT ); Sat, 27 Mar 2010 08:15:53 -0400 Sender: linux-ext4-owner@vger.kernel.org List-ID: This patch set aimed to get rid of most annoying locks. In case of journalled quota it is dq_iomutex and i_mutex. Patches are simple and clean. Patches make difference between nojournaled/journaled quota modes less significant. And allow us to switch to default journalled quota without performance penalty. There are many other optimizations possible, but they are more intrusive and require wide discussions.