> Please consider the v4 below with the lock added. Lee: Please re-review this given the code change. > From: Bharath Ravi <rbharath@xxxxxxxxxx> > > Connection failure processing depends on a daemon being present to (at > least) stop the connection and start recovery. This is a problem on a > multipath scenario, where if the daemon failed for whatever reason, the > SCSI path is never marked as down, multipath won't perform the > failover and IO to the device will be forever waiting for that > connection to come back. > > This patch performs the connection failure entirely inside the kernel. > This way, the failover can happen and pending IO can continue even if > the daemon is dead. Once the daemon comes alive again, it can execute > recovery procedures if applicable. -- Martin K. Petersen Oracle Linux Engineering
