From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Hansen Subject: [PATCH 24/26] do_rmdir(): elevate write count Date: Fri, 22 Jun 2007 13:03:35 -0700 Message-ID: <20070622200335.BA08824A@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 e34.co.us.ibm.com ([32.97.110.152]:34687 "EHLO e34.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750781AbXFVUGs (ORCPT ); Fri, 22 Jun 2007 16:06:48 -0400 Received: from d03relay02.boulder.ibm.com (d03relay02.boulder.ibm.com [9.17.195.227]) by e34.co.us.ibm.com (8.13.8/8.13.8) with ESMTP id l5MK6lXO026991 for ; Fri, 22 Jun 2007 16:06:47 -0400 Received: from d03av01.boulder.ibm.com (d03av01.boulder.ibm.com [9.17.195.167]) by d03relay02.boulder.ibm.com (8.13.8/8.13.8/NCO v8.3) with ESMTP id l5MK6HPU263178 for ; Fri, 22 Jun 2007 14:06:47 -0600 Received: from d03av01.boulder.ibm.com (loopback [127.0.0.1]) by d03av01.boulder.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id l5MK3aij030306 for ; Fri, 22 Jun 2007 14:03:37 -0600 In-Reply-To: <20070622200303.82D9CC3A@kernel> Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Elevate the write count during the vfs_rmdir() call. Signed-off-by: Dave Hansen --- lxc-dave/fs/namei.c | 5 +++++ 1 file changed, 5 insertions(+) diff -puN fs/namei.c~20-24-do-rmdir-elevate-write-count fs/namei.c --- lxc/fs/namei.c~20-24-do-rmdir-elevate-write-count 2007-06-21 23:23:26.000000000 -0700 +++ lxc-dave/fs/namei.c 2007-06-21 23:23:26.000000000 -0700 @@ -2095,7 +2095,12 @@ static long do_rmdir(int dfd, const char error = PTR_ERR(dentry); if (IS_ERR(dentry)) goto exit2; + error = mnt_want_write(nd.mnt); + if (error) + goto exit3; error = vfs_rmdir(nd.dentry->d_inode, dentry); + mnt_drop_write(nd.mnt); +exit3: dput(dentry); exit2: mutex_unlock(&nd.dentry->d_inode->i_mutex); _