Avoid reusing recorded events when performing a migration, since this
may make the migration selection logic pick an already-moved flow.
Fixes: f6257b22e767 ("event/dsw: add load balancing")
Cc: [email protected]
Reported-by: Venky Venkatesh <[email protected]>
Signed-off-by: Mattias Rönnblom <[email protected]>
---
drivers/event/dsw/dsw_event.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/event/dsw/dsw_event.c b/drivers/event/dsw/dsw_event.c
index d68b71b98..296adea18 100644
--- a/drivers/event/dsw/dsw_event.c
+++ b/drivers/event/dsw/dsw_event.c
@@ -646,6 +646,9 @@ dsw_port_consider_migration(struct dsw_evdev *dsw,
if (dsw->num_ports == 1)
return;
+ if (seen_events_len < DSW_MAX_EVENTS_RECORDED)
+ return;
+
DSW_LOG_DP_PORT(DEBUG, source_port->id, "Considering migration.\n");
/* Randomize interval to avoid having all threads considering
--
2.17.1
