net: ipmr/ip6mr: update lastuse on entry change

Currently lastuse is updated on entry creation and cache hit, but it should
also be updated on entry change. Since both on add and update the ttl array
is updated we can simply update the lastuse in ipmr_update_thresholds.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
CC: Roopa Prabhu <roopa@cumulusnetworks.com>
CC: Donald Sharp <sharpd@cumulusnetworks.com>
CC: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv4/ipmr.c

@@ -722,6 +722,7 @@ static void ipmr_update_thresholds(struct mr_table *mrt, struct mfc_cache *cache
 				cache->mfc_un.res.maxvif = vifi + 1;
 		}
 	}
+	cache->mfc_un.res.lastuse = jiffies;
 }
 
 static int vif_add(struct net *net, struct mr_table *mrt,
@@ -1150,7 +1151,6 @@ static int ipmr_mfc_add(struct net *net, struct mr_table *mrt,
 	c->mfc_origin = mfc->mfcc_origin.s_addr;
 	c->mfc_mcastgrp = mfc->mfcc_mcastgrp.s_addr;
 	c->mfc_parent = mfc->mfcc_parent;
-	c->mfc_un.res.lastuse = jiffies;
 	ipmr_update_thresholds(mrt, c, mfc->mfcc_ttls);
 	if (!mrtsock)
 		c->mfc_flags |= MFC_STATIC;

net/ipv6/ip6mr.c

@@ -921,6 +921,7 @@ static void ip6mr_update_thresholds(struct mr6_table *mrt, struct mfc6_cache *ca
 				cache->mfc_un.res.maxvif = vifi + 1;
 		}
 	}
+	cache->mfc_un.res.lastuse = jiffies;
 }
 
 static int mif6_add(struct net *net, struct mr6_table *mrt,
@@ -1500,7 +1501,6 @@ static int ip6mr_mfc_add(struct net *net, struct mr6_table *mrt,
 	c->mf6c_origin = mfc->mf6cc_origin.sin6_addr;
 	c->mf6c_mcastgrp = mfc->mf6cc_mcastgrp.sin6_addr;
 	c->mf6c_parent = mfc->mf6cc_parent;
-	c->mfc_un.res.lastuse = jiffies;
 	ip6mr_update_thresholds(mrt, c, ttls);
 	if (!mrtsock)
 		c->mfc_flags |= MFC_STATIC;