src/patches/suse-2.6.27.31/patches.arch/s390-05-04-fix_rport_status_check.patch

   1 From: Gerald Schaefer <geraldsc@de.ibm.com>
   2 Subject: zfcp: fix remote port status check
   3 References: bnc#450096
   4
   5 Symptom:     SCSI disks dropped out during FC switch error injection
   6 Problem:     For an incoming rscn it was checked by the
   7              ZFCP_STATUS_PORT_DID_DID define to re-open a remote port
   8              or to test the connection. Since this define was re-used
   9              it was also necessary to replace that define.
  10 Solution:    Replaced ZFCP_STATUS_PORT_DID_DID with
  11              ZFCP_STATUS_PORT_PHYS_OPEN.
  12
  13 Acked-by: John Jolly <jjolly@suse.de>
  14 ---
  15  drivers/s390/scsi/zfcp_fc.c |    3 +--
  16  1 file changed, 1 insertion(+), 2 deletions(-)
  17
  18 Index: linux-sles11/drivers/s390/scsi/zfcp_fc.c
  19 ===================================================================
  20 --- linux-sles11.orig/drivers/s390/scsi/zfcp_fc.c
  21 +++ linux-sles11/drivers/s390/scsi/zfcp_fc.c
  22 @@ -128,8 +128,7 @@ static void _zfcp_fc_incoming_rscn(struc
  23
  24         read_lock_irqsave(&zfcp_data.config_lock, flags);
  25         list_for_each_entry(port, &fsf_req->adapter->port_list_head, list) {
  26 -               /* FIXME: ZFCP_STATUS_PORT_DID_DID check is racy */
  27 -               if (!(atomic_read(&port->status) & ZFCP_STATUS_PORT_DID_DID))
  28 +               if (!(atomic_read(&port->status) & ZFCP_STATUS_PORT_PHYS_OPEN))
  29                         /* Try to connect to unused ports anyway. */
  30                         zfcp_erp_port_reopen(port,
  31                                              ZFCP_STATUS_COMMON_ERP_FAILED,