From mboxrd@z Thu Jan 1 00:00:00 1970 From: Erez Zadok Subject: [PATCH 5/9] Unionfs: don't bother validating dentry if it has no lower branches Date: Sun, 21 Oct 2007 19:51:18 -0400 Message-ID: <11930106852087-git-send-email-ezk@cs.sunysb.edu> References: <11930106823372-git-send-email-ezk@cs.sunysb.edu> Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, viro@ftp.linux.org.uk, hch@infradead.org, Erez Zadok To: akpm@linux-foundation.org Return-path: Received: from filer.fsl.cs.sunysb.edu ([130.245.126.2]:49190 "EHLO filer.fsl.cs.sunysb.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751313AbXJUXvp (ORCPT ); Sun, 21 Oct 2007 19:51:45 -0400 In-Reply-To: <11930106823372-git-send-email-ezk@cs.sunysb.edu> Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Signed-off-by: Erez Zadok --- fs/unionfs/debug.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/fs/unionfs/debug.c b/fs/unionfs/debug.c index 68692d7..894bf7c 100644 --- a/fs/unionfs/debug.c +++ b/fs/unionfs/debug.c @@ -132,6 +132,9 @@ void __unionfs_check_dentry(const struct dentry *dentry, inode = dentry->d_inode; dstart = dbstart(dentry); dend = dbend(dentry); + /* don't check dentry/mnt if no lower branches */ + if (dstart < 0 && dend < 0) + goto check_inode; BUG_ON(dstart > dend); if (unlikely((dstart == -1 && dend != -1) || @@ -212,6 +215,7 @@ void __unionfs_check_dentry(const struct dentry *dentry, } } +check_inode: /* for inodes now */ if (!inode) return; -- 1.5.2.2