From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758604AbbEaVhg (ORCPT ); Sun, 31 May 2015 17:37:36 -0400 Received: from zeniv.linux.org.uk ([195.92.253.2]:52330 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751282AbbEaVh1 (ORCPT ); Sun, 31 May 2015 17:37:27 -0400 Date: Sun, 31 May 2015 22:37:25 +0100 From: Al Viro To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [git pull] vfs fix Message-ID: <20150531213725.GI7232@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 Off-by-one in d_walk()/__dentry_kill() race fix. It's very hard to hit; possible in the same conditions as the original bug, except that you need the skipped branch to contain all the remaining evictables, so that the d_walk()-calling loop in d_invalidate() decides there's nothing more to do and doesn't go for another pass - otherwise that next pass will sweep the sucker. So it's not too urgent, but seeing that the fix is obvious and the original commit has spread into all -stable branches... Please, pull from git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git for-linus Shortlog: Al Viro (1): d_walk() might skip too much Diffstat: fs/dcache.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)