From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
This patch updates core_tmr_lun_reset() to properly release any legacy SPC-2 reservations
when a TMR LUN_RESET has been received. This only applys to legacy SPC-2 reservations,
as >= SPC-3 persistent reservations is not effected by TMR LUN_RESET.
Signed-off-by: Nicholas A. Bellinger <nab@xxxxxxxxxxxxxxx>
---
drivers/target/target_core_tmr.c | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c
index 366c2f4..3cc2bf0 100644
--- a/drivers/target/target_core_tmr.c
+++ b/drivers/target/target_core_tmr.c
@@ -383,6 +383,18 @@ int core_tmr_lun_reset(
spin_lock_irqsave(&qobj->cmd_queue_lock, flags);
}
spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags);
+ /*
+ * Clear any legacy SPC-2 reservation when called during
+ * LOGICAL UNIT RESET
+ */
+ if (!(preempt_and_abort_list) &&
+ (dev->dev_flags & DF_SPC2_RESERVATIONS)) {
+ spin_lock(&dev->dev_reservation_lock);
+ dev->dev_reserved_node_acl = NULL;
+ dev->dev_flags &= ~DF_SPC2_RESERVATIONS;
+ spin_unlock(&dev->dev_reservation_lock);
+ printk(KERN_INFO "LUN_RESET: SCSI-2 Released reservation\n");
+ }
#ifdef SNMP_SUPPORT
spin_lock(&dev->stats_lock);
--
1.5.6.5
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