[PATCH] Snoop SET FEATURES - WRITE CACHE ENABLE/DISABLE command(v5)

This patch makes libata snoop 'SET FEATURES - WRITE CACHE
ENABLE/DISABLE' command, executing requisite revalidation processes
to update cached data.

Signed-off-by: Forrest Zhao <forrest.zhao@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/scsi/libata-eh.c b/drivers/scsi/libata-eh.c
index 6285257a890d..f82799e22588 100644
--- a/drivers/scsi/libata-eh.c
+++ b/drivers/scsi/libata-eh.c
@@ -1554,6 +1554,9 @@ static int ata_eh_revalidate_and_attach(struct ata_port *ap,
                         if (rc)
                                 break;
 
+                        /* schedule the scsi_rescan_device() here */
+                        queue_work(ata_aux_wq, &(ap->scsi_rescan_task));
+
                         ehc->i.action &= ~ATA_EH_REVALIDATE;
                 } else if (dev->class == ATA_DEV_UNKNOWN &&
                            ehc->tries[dev->devno] &&