From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1946143AbXBIWyF (ORCPT ); Fri, 9 Feb 2007 17:54:05 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1423364AbXBIWxk (ORCPT ); Fri, 9 Feb 2007 17:53:40 -0500 Received: from e35.co.us.ibm.com ([32.97.110.153]:46936 "EHLO e35.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752484AbXBIWxf (ORCPT ); Fri, 9 Feb 2007 17:53:35 -0500 Subject: [PATCH 05/22] elevate mnt writers for callers of vfs_mkdir() To: linux-kernel@vger.kernel.org Cc: akpm@osdl.org, hch@infradead.org, Dave Hansen From: Dave Hansen Date: Fri, 09 Feb 2007 14:53:32 -0800 References: <20070209225329.27619A62@localhost.localdomain> In-Reply-To: <20070209225329.27619A62@localhost.localdomain> Message-Id: <20070209225332.1EE0065B@localhost.localdomain> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org elevate mnt writers for callers of vfs_mkdir() Pretty self-explanatory. Fits in with the rest of the series. Signed-off-by: Dave Hansen --- lxc-dave/fs/namei.c | 5 +++++ lxc-dave/fs/nfsd/nfs4recover.c | 4 ++++ 2 files changed, 9 insertions(+) diff -puN fs/namei.c~07-24-elevate-mnt-writers-for-callers-of-vfs-mkdir fs/namei.c --- lxc/fs/namei.c~07-24-elevate-mnt-writers-for-callers-of-vfs-mkdir 2007-02-09 14:26:49.000000000 -0800 +++ lxc-dave/fs/namei.c 2007-02-09 14:26:49.000000000 -0800 @@ -1963,7 +1963,12 @@ 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~07-24-elevate-mnt-writers-for-callers-of-vfs-mkdir fs/nfsd/nfs4recover.c --- lxc/fs/nfsd/nfs4recover.c~07-24-elevate-mnt-writers-for-callers-of-vfs-mkdir 2007-02-09 14:26:49.000000000 -0800 +++ lxc-dave/fs/nfsd/nfs4recover.c 2007-02-09 14:26:49.000000000 -0800 @@ -156,7 +156,11 @@ nfsd4_create_clid_dir(struct nfs4_client dprintk("NFSD: nfsd4_create_clid_dir: DIRECTORY EXISTS\n"); goto out_put; } + status = mnt_want_write(rec_dir.mnt); + if (status) + goto out_put; status = vfs_mkdir(rec_dir.dentry->d_inode, dentry, S_IRWXU); + mnt_drop_write(rec_dir.mnt); out_put: dput(dentry); out_unlock: _