batman-adv: properly store the roaming time

in case of a new global entry added because of roaming, the roam_at field must
be properly initiated with the current time. This value will be later use to
purge this entry out on time out (if nobody claims it). Instead roam_at field
is now set to zero in this situation leading to an immediate purging of the
related entry.

Signed-off-by: Antonio Quartulli <ordex@autistici.org>

diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 42a74e31b4ab4c48c5c035ece12640ec5ba6beeb..0ac39d5f77d8071047aa4d32cf421212654526bc 100644 (file)
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -726,6 +726,12 @@ int batadv_tt_global_add(struct batadv_priv *bat_priv,
 
                common->flags = flags;
                tt_global_entry->roam_at = 0;
+               /* node must store current time in case of roaming. This is
+                * needed to purge this entry out on timeout (if nobody claims
+                * it)
+                */
+               if (flags & BATADV_TT_CLIENT_ROAM)
+                       tt_global_entry->roam_at = jiffies;
                atomic_set(&common->refcount, 2);
                common->added_at = jiffies;