From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sunil Mushran Date: Tue, 09 Feb 2010 09:53:01 -0800 Subject: [Ocfs2-devel] ocfs2: bug in dlm_process_recovery_data() In-Reply-To: <20100209080944.GA13283@bicker> References: <20100209080944.GA13283@bicker> Message-ID: <4B71A0FD.1020708@oracle.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ocfs2-devel@oss.oracle.com Dan Carpenter wrote: > I noticed a change was merged to dlm_process_recovery_data() so I > thought you might want to fix this as well. > > fs/ocfs2/dlm/dlmrecovery.c > 1788 list_for_each_entry(lock, tmpq, list) { > 1789 if (lock->ml.cookie != ml->cookie) > 1790 lock = NULL; > > We dereference lock in list_for_each_entry(). Maybe you want > list_for_each_entry_safe() or something? > > 1791 else > 1792 break; > 1793 } > 1794 if (lock) > 1795 break; > Why? That's only required if we are deleting a list entry.