Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753825AbaFKR4K (ORCPT ); Wed, 11 Jun 2014 13:56:10 -0400 Received: from mail03-md.ns.itscom.net ([175.177.155.113]:35371 "EHLO mail03-md.ns.itscom.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753211AbaFKR4I (ORCPT ); Wed, 11 Jun 2014 13:56:08 -0400 From: "J. R. Okajima" Subject: Re: Linux 3.15 .. and continuation of merge window To: Al Viro Cc: Linus Torvalds , Linux Kernel Mailing List In-Reply-To: <20140611123022.GW18016@ZenIV.linux.org.uk> References: <13591.1402284634@jrobl> <20140611011036.GV18016@ZenIV.linux.org.uk> <26914.1402479178@jrobl> <20140611123022.GW18016@ZenIV.linux.org.uk> Date: Thu, 12 Jun 2014 02:56:05 +0900 Message-ID: <26330.1402509365@jrobl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Al Viro: > The former guarantees that the address we are doing trylock on would be that > of a live dentry. The latter makes sure that anything assigned to > dentry->d_parent after we drop ->d_lock will not be freed until we drop > rcu_read_lock. Although I don't know how to reproduce the problem for the latter case, I think the patch is good. J. R. Okajima -- 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/