From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932746Ab1BXHUL (ORCPT ); Thu, 24 Feb 2011 02:20:11 -0500 Received: from zeniv.linux.org.uk ([195.92.253.2]:34470 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932559Ab1BXHUJ (ORCPT ); Thu, 24 Feb 2011 02:20:09 -0500 Date: Thu, 24 Feb 2011 07:20:08 +0000 From: Al Viro To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [git pull] vfs fix Message-ID: <20110224072008.GY22723@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fix for very unpleasant braino in do_umount(); the effect was that if umount(name, MNT_EXPIRE) failed with -EBUSY it left the kernel with doubly-taken vfsmount_lock. The next attempt to mount or umount something would deadlock, of course... Please, pull from git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6.git/ for-linus Shortlog: J. R. Okajima (1): Unlock vfsmount_lock in do_umount Diffstat: fs/namespace.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)