From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Hansen Subject: [RFC][PATCH 09/27] elevate mnt writers for sys_mkdirat() call of vfs_mkdir() Date: Wed, 07 Jun 2006 17:10:20 -0700 Message-ID: <20060608001020.8F365C7D@localhost.localdomain> References: <20060608001013.0D041507@localhost.localdomain> Cc: herbert@13thfloor.at, viro@ftp.linux.org.uk, hch@infradead.org, trond.myklebust@fys.uio.no, Dave Hansen Return-path: Received: from e31.co.us.ibm.com ([32.97.110.149]:1170 "EHLO e31.co.us.ibm.com") by vger.kernel.org with ESMTP id S932483AbWFHAK3 (ORCPT ); Wed, 7 Jun 2006 20:10:29 -0400 Received: from d03relay04.boulder.ibm.com (d03relay04.boulder.ibm.com [9.17.195.106]) by e31.co.us.ibm.com (8.12.11.20060308/8.12.11) with ESMTP id k580AQ4d026834 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Wed, 7 Jun 2006 20:10:26 -0400 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by d03relay04.boulder.ibm.com (8.13.6/NCO/VER7.0) with ESMTP id k580AQmt274462 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 7 Jun 2006 18:10:26 -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 k580APoL008438 for ; Wed, 7 Jun 2006 18:10:26 -0600 To: linux-fsdevel@vger.kernel.org In-Reply-To: <20060608001013.0D041507@localhost.localdomain> Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Signed-off-by: Dave Hansen --- fs/nfsd/nfs4recover.c | 0 lxc-dave/fs/namei.c | 5 +++++ 2 files changed, 5 insertions(+) diff -puN fs/namei.c~sys_mkdir_at-do-mnt_want_write fs/namei.c --- lxc/fs/namei.c~sys_mkdir_at-do-mnt_want_write 2006-06-07 16:53:17.000000000 -0700 +++ lxc-dave/fs/namei.c 2006-06-07 16:53:17.000000000 -0700 @@ -1906,7 +1906,12 @@ asmlinkage long sys_mkdirat(int dfd, con if (!IS_POSIXACL(nd.dentry->d_inode)) mode &= ~current->fs->umask; + error = mnt_want_write(nd.mnt); + if (error) + goto out_dput; error = vfs_mkdir(nd.dentry->d_inode, dentry, mode); + mnt_drop_write(nd.mnt); +out_dput: dput(dentry); out_unlock: mutex_unlock(&nd.dentry->d_inode->i_mutex); diff -puN fs/nfsd/nfs4recover.c~sys_mkdir_at-do-mnt_want_write fs/nfsd/nfs4recover.c _