Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754850AbZJUTUM (ORCPT ); Wed, 21 Oct 2009 15:20:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754819AbZJUTUL (ORCPT ); Wed, 21 Oct 2009 15:20:11 -0400 Received: from mx1.redhat.com ([209.132.183.28]:20483 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754312AbZJUTUK (ORCPT ); Wed, 21 Oct 2009 15:20:10 -0400 From: Valerie Aurora To: Jan Blunck , Alexander Viro , Christoph Hellwig , Andy Whitcroft , Scott James Remnant , Sandu Popa Marius , Jan Rekorajski , "J. R. Okajima" , Arnd Bergmann , Vladimir Dronnikov , Felix Fietkau Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Jan Blunck Subject: [PATCH 01/41] VFS: BUG() if somebody tries to rehash an already hashed dentry Date: Wed, 21 Oct 2009 12:18:59 -0700 Message-Id: <1256152779-10054-2-git-send-email-vaurora@redhat.com> In-Reply-To: <1256152779-10054-1-git-send-email-vaurora@redhat.com> References: <1256152779-10054-1-git-send-email-vaurora@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 951 Lines: 32 From: Jan Blunck Break early when somebody tries to rehash an already hashed dentry. Otherwise this leads to interesting corruptions in the dcache hash table later on. Signed-off-by: Jan Blunck Signed-off-by: Valerie Aurora --- fs/dcache.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/fs/dcache.c b/fs/dcache.c index 9e5cd3c..38bf982 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -1550,6 +1550,7 @@ void d_rehash(struct dentry * entry) { spin_lock(&dcache_lock); spin_lock(&entry->d_lock); + BUG_ON(!d_unhashed(entry)); _d_rehash(entry); spin_unlock(&entry->d_lock); spin_unlock(&dcache_lock); -- 1.6.3.3 -- 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/