During state transition we should be storing both the original
and the pending state.
Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
---
drivers/target/target_core_alua.c | 15 ++++++++++-----
include/target/target_core_base.h | 6 ++++--
2 files changed, 14 insertions(+), 7 deletions(-)
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index b1d08bf..33e3f23 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -804,12 +804,15 @@ static int core_alua_do_transition_tg_pt(
struct se_lun_acl *lacl;
struct se_port *port;
struct t10_alua_tg_pt_gp_member *mem;
- int old_state = 0;
+
/*
* Save the old primary ALUA access state, and set the current state
* to ALUA_ACCESS_STATE_TRANSITION.
*/
- old_state = atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state);
+ tg_pt_gp->tg_pt_gp_alua_previous_state =
+ atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state);
+ tg_pt_gp->tg_pt_gp_alua_pending_state = new_state;
+
atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state,
ALUA_ACCESS_STATE_TRANSITION);
tg_pt_gp->tg_pt_gp_alua_access_status = (explicit) ?
@@ -890,13 +893,15 @@ static int core_alua_do_transition_tg_pt(
/*
* Set the current primary ALUA access state to the requested new state
*/
- atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state, new_state);
+ atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state,
+ tg_pt_gp->tg_pt_gp_alua_pending_state);
pr_debug("Successful %s ALUA transition TG PT Group: %s ID: %hu"
" from primary access state %s to %s\n", (explicit) ? "explicit" :
"implicit", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item),
- tg_pt_gp->tg_pt_gp_id, core_alua_dump_state(old_state),
- core_alua_dump_state(new_state));
+ tg_pt_gp->tg_pt_gp_id,
+ core_alua_dump_state(tg_pt_gp->tg_pt_gp_alua_previous_state),
+ core_alua_dump_state(tg_pt_gp->tg_pt_gp_alua_pending_state));
return 0;
}
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 933c59d..67b6ca2 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -282,8 +282,10 @@ struct t10_alua_lu_gp_member {
struct t10_alua_tg_pt_gp {
u16 tg_pt_gp_id;
int tg_pt_gp_valid_id;
- int tg_pt_gp_alua_supported_states;
- int tg_pt_gp_alua_access_status;
+ u8 tg_pt_gp_alua_pending_state;
+ u8 tg_pt_gp_alua_previous_state;
+ u8 tg_pt_gp_alua_supported_states;
+ u8 tg_pt_gp_alua_access_status;
int tg_pt_gp_alua_access_type;
int tg_pt_gp_nonop_delay_msecs;
int tg_pt_gp_trans_delay_msecs;
--
1.7.12.4
--
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