[PATCH 3.2 162/199] ipmr/ip6mr: Initialize the last assert time of mfc entries.

From: Ben Hutchings
Date: Fri Mar 10 2017 - 07:03:32 EST


3.2.87-rc1 review patch. If anyone has any objections, please let me know.

------------------

From: Tom Goff <thomas.goff@xxxxxxxxxx>

[ Upstream commit 70a0dec45174c976c64b4c8c1d0898581f759948 ]

This fixes wrong-interface signaling on 32-bit platforms for entries
created when jiffies > 2^31 + MFC_ASSERT_THRESH.

Signed-off-by: Tom Goff <thomas.goff@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
net/ipv4/ipmr.c | 4 +++-
net/ipv6/ip6mr.c | 1 +
2 files changed, 4 insertions(+), 1 deletion(-)

--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -830,8 +830,10 @@ static struct mfc_cache *ipmr_cache_allo
{
struct mfc_cache *c = kmem_cache_zalloc(mrt_cachep, GFP_KERNEL);

- if (c)
+ if (c) {
+ c->mfc_un.res.last_assert = jiffies - MFC_ASSERT_THRESH - 1;
c->mfc_un.res.minvif = MAXVIFS;
+ }
return c;
}

--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -1022,6 +1022,7 @@ static struct mfc6_cache *ip6mr_cache_al
struct mfc6_cache *c = kmem_cache_zalloc(mrt_cachep, GFP_KERNEL);
if (c == NULL)
return NULL;
+ c->mfc_un.res.last_assert = jiffies - MFC_ASSERT_THRESH - 1;
c->mfc_un.res.minvif = MAXMIFS;
return c;
}