From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Hansen Subject: [PATCH 14/26] elevate write count for file_update_time() Date: Fri, 22 Jun 2007 13:03:21 -0700 Message-ID: <20070622200321.1D813C8A@kernel> References: <20070622200303.82D9CC3A@kernel> Cc: linux-fsdevel@vger.kernel.org, hch@infradead.org, viro@ftp.linux.org.uk, Dave Hansen To: akpm@osdl.org Return-path: Received: from e33.co.us.ibm.com ([32.97.110.151]:59659 "EHLO e33.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751138AbXFVULE (ORCPT ); Fri, 22 Jun 2007 16:11:04 -0400 Received: from d03relay02.boulder.ibm.com (d03relay02.boulder.ibm.com [9.17.195.227]) by e33.co.us.ibm.com (8.13.8/8.13.8) with ESMTP id l5MKB49O000399 for ; Fri, 22 Jun 2007 16:11:04 -0400 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by d03relay02.boulder.ibm.com (8.13.8/8.13.8/NCO v8.3) with ESMTP id l5MK6CbY218950 for ; Fri, 22 Jun 2007 14:11:03 -0600 Received: from d03av02.boulder.ibm.com (loopback [127.0.0.1]) by d03av02.boulder.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id l5MK3N4A004105 for ; Fri, 22 Jun 2007 14:03:24 -0600 In-Reply-To: <20070622200303.82D9CC3A@kernel> Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Signed-off-by: Dave Hansen --- lxc-dave/fs/inode.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff -puN fs/inode.c~elevate-write-count-for-file_update_time fs/inode.c --- lxc/fs/inode.c~elevate-write-count-for-file_update_time 2007-06-21 23:23:20.000000000 -0700 +++ lxc-dave/fs/inode.c 2007-06-21 23:23:20.000000000 -0700 @@ -1217,10 +1217,13 @@ void file_update_time(struct file *file) struct inode *inode = file->f_path.dentry->d_inode; struct timespec now; int sync_it = 0; + int err = 0; if (IS_NOCMTIME(inode)) return; - if (IS_RDONLY(inode)) + if (file->f_vfsmnt) + err = mnt_want_write(file->f_vfsmnt); + if (err) return; now = current_fs_time(inode->i_sb); @@ -1236,6 +1239,8 @@ void file_update_time(struct file *file) if (sync_it) mark_inode_dirty_sync(inode); + if (file->f_vfsmnt) + mnt_drop_write(file->f_vfsmnt); } EXPORT_SYMBOL(file_update_time); _