From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: [PATCH v3] ocfs2: Let ocfs2_setattr use new truncate sequence. Date: Thu, 10 Jun 2010 10:27:11 +0200 Message-ID: <20100610082711.GA2173@lst.de> References: <20100610044234.GD26335@laptop> <1276146485-9346-1-git-send-email-tao.ma@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Joel Becker , Christoph Hellwig , Nick Piggin To: Tao Ma Return-path: Content-Disposition: inline In-Reply-To: <1276146485-9346-1-git-send-email-tao.ma@oracle.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On Thu, Jun 10, 2010 at 01:08:05PM +0800, Tao Ma wrote: > Let ocfs2 use the new truncate sequence. The changes include: > 1. Use truncate_setsize directly since we don't implement our > own ->truncate and what we need is "update i_size and > truncate_pagecache" which truncate_setsize now does. > 2. For direct write, ocfs2 actually don't allow write to pass > i_size(see ocfs2_prepare_inode_for_write), so we don't have > a chance to increase i_size. So remove the bogus check. You just leave the duplicate inode_newsize_ok in, but still have one as part of inode_change_ok. See the previous thread - we'll need to move inode_change_ok to under the cluster locks, both for the truncate and non-truncate case. > /* > + * Since all the work for a size change has been done above. > + * Call truncate_setsize directly to change size and truncate > + * pagecache. > */ > if ((attr->ia_valid & ATTR_SIZE) && > + attr->ia_size != inode->i_size) this could be on one line now. > + truncate_setsize(inode, attr->ia_size); But any reason this isn't done inside the if (size_change && attr->ia_size != inode->i_size) { conditional above? You'll never get size and uid/gid changes in the same request, so there won't be any change in behaviour.