From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joel Becker Subject: Re: [PATCH 10/14] quota: Introduce DQUOT_QUOTA_SYS_FILE flag Date: Tue, 28 Oct 2008 10:51:06 -0700 Message-ID: <20081028175106.GA17578@mail.oracle.com> References: <12251095124166-git-send-email-jack@suse.cz> <1225109512758-git-send-email-jack@suse.cz> <12251095122803-git-send-email-jack@suse.cz> <12251095124165-git-send-email-jack@suse.cz> <1225109513735-git-send-email-jack@suse.cz> <12251095131095-git-send-email-jack@suse.cz> <12251095133646-git-send-email-jack@suse.cz> <12251095133281-git-send-email-jack@suse.cz> <12251095131431-git-send-email-jack@suse.cz> <20081027224414.d683a1a2.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Jan Kara , linux-fsdevel@vger.kernel.org To: Andrew Morton Return-path: Received: from agminet01.oracle.com ([141.146.126.228]:12660 "EHLO agminet01.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752683AbYJ1Rvu (ORCPT ); Tue, 28 Oct 2008 13:51:50 -0400 Content-Disposition: inline In-Reply-To: <20081027224414.d683a1a2.akpm@linux-foundation.org> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Mon, Oct 27, 2008 at 10:44:14PM -0700, Andrew Morton wrote: > On Mon, 27 Oct 2008 13:11:48 +0100 Jan Kara wrote: > > > If filesystem can handle quota files as system files hidden from users, we can > > skip a lot of cache invalidation, syncing, inode flags setting etc. when > > turning quotas on, off and quota_sync. Allow filesystem to indicate that it is > > hiding quota files from users by DQUOT_QUOTA_SYS_FILE flag. > > Which filesystems can do this? (Or will be able to...) ocfs2 will (Jan's posted those patches over at ocfs2-devel). I can't see why extN couldn't at some point. Joel -- Life's Little Instruction Book #444 "Never underestimate the power of a kind word or deed." Joel Becker Principal Software Developer Oracle E-mail: joel.becker@oracle.com Phone: (650) 506-8127