Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757836AbXIQSdQ (ORCPT ); Mon, 17 Sep 2007 14:33:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756051AbXIQS1w (ORCPT ); Mon, 17 Sep 2007 14:27:52 -0400 Received: from e35.co.us.ibm.com ([32.97.110.153]:39382 "EHLO e35.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756256AbXIQS1r (ORCPT ); Mon, 17 Sep 2007 14:27:47 -0400 Subject: [PATCH 09/24] elevate mnt writers for callers of vfs_mkdir() To: akpm@osdl.org Cc: linux-kernel@vger.kernel.org, hch@infradead.org, Dave Hansen From: Dave Hansen Date: Mon, 17 Sep 2007 11:27:29 -0700 References: <20070917182718.70494C9B@kernel> In-Reply-To: <20070917182718.70494C9B@kernel> Message-Id: <20070917182729.14AEDAFA@kernel> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1728 Lines: 47 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~elevate-mnt-writers-for-callers-of-vfs-mkdir fs/namei.c --- lxc/fs/namei.c~elevate-mnt-writers-for-callers-of-vfs-mkdir 2007-09-17 09:44:01.000000000 -0700 +++ lxc-dave/fs/namei.c 2007-09-17 09:44:01.000000000 -0700 @@ -2051,7 +2051,12 @@ 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~elevate-mnt-writers-for-callers-of-vfs-mkdir fs/nfsd/nfs4recover.c --- lxc/fs/nfsd/nfs4recover.c~elevate-mnt-writers-for-callers-of-vfs-mkdir 2007-09-17 09:44:01.000000000 -0700 +++ lxc-dave/fs/nfsd/nfs4recover.c 2007-09-17 09:44:01.000000000 -0700 @@ -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: _ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/