iscsi-target: Introduce session_get_next_ttt

Reduce code duplication.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/include/target/iscsi/iscsi_target_core.h b/include/target/iscsi/iscsi_target_core.h
index 09a522bae222..5f41a17bdafd 100644
--- a/include/target/iscsi/iscsi_target_core.h
+++ b/include/target/iscsi/iscsi_target_core.h
@@ -880,4 +880,17 @@ struct iscsit_global {
         struct iscsi_portal_group       *discovery_tpg;
 };
 
+static inline u32 session_get_next_ttt(struct iscsi_session *session)
+{
+        u32 ttt;
+
+        spin_lock_bh(&session->ttt_lock);
+        ttt = session->targ_xfer_tag++;
+        if (ttt == 0xFFFFFFFF)
+                ttt = session->targ_xfer_tag++;
+        spin_unlock_bh(&session->ttt_lock);
+
+        return ttt;
+}
+
 #endif /* ISCSI_TARGET_CORE_H */