From: Florian Westphal <fw@xxxxxxxxx>
[ Upstream commit 9dffff200fd178f11dd50eb1fd8ccd0650c9284e ]
bydst table/list lookups use rcu, so insertions must use rcu versions.
Fixes: a7c44247f704e ("xfrm: policy: make xfrm_policy_lookup_bytype lockless")
Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
Signed-off-by: Steffen Klassert <steffen.klassert@xxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
net/xfrm/xfrm_policy.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index d0dcfc68c043..155b1591b17a 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -659,9 +659,9 @@ static void xfrm_hash_rebuild(struct work_struct *work)
break;
}
if (newpos)
- hlist_add_behind(&policy->bydst, newpos);
+ hlist_add_behind_rcu(&policy->bydst, newpos);
else
- hlist_add_head(&policy->bydst, chain);
+ hlist_add_head_rcu(&policy->bydst, chain);
}
spin_unlock_bh(&net->xfrm.xfrm_policy_lock);
@@ -800,9 +800,9 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl)
break;
}
if (newpos)
- hlist_add_behind(&policy->bydst, newpos);
+ hlist_add_behind_rcu(&policy->bydst, newpos);
else
- hlist_add_head(&policy->bydst, chain);
+ hlist_add_head_rcu(&policy->bydst, chain);
__xfrm_policy_link(policy, dir);
atomic_inc(&net->xfrm.flow_cache_genid);
--
2.17.1
