diff options
| author | Hannes Frederic Sowa <hannes@stressinduktion.org> | 2015-12-15 21:01:53 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-01-22 20:54:16 -0800 |
| commit | 2bc1b5b3a634081d49dbb16aab2b55cec1eb55b9 (patch) | |
| tree | a535a9cdd7d908b82ca9577e2772245813bd1613 /net | |
| parent | 78e1970233fd270349834bb8b7ca84c58c7c974c (diff) | |
fou: clean up socket with kfree_rcu
[ Upstream commit 3036facbb7be3a169e35be3b271162b0fa564a2d ]
fou->udp_offloads is managed by RCU. As it is actually included inside
the fou sockets, we cannot let the memory go out of scope before a grace
period. We either can synchronize_rcu or switch over to kfree_rcu to
manage the sockets. kfree_rcu seems appropriate as it is used by vxlan
and geneve.
Fixes: 23461551c00628c ("fou: Support for foo-over-udp RX path")
Cc: Tom Herbert <tom@herbertland.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/fou.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c index 34968cd5c146..4b67937692c9 100644 --- a/net/ipv4/fou.c +++ b/net/ipv4/fou.c @@ -24,6 +24,7 @@ struct fou { u16 type; struct udp_offload udp_offloads; struct list_head list; + struct rcu_head rcu; }; #define FOU_F_REMCSUM_NOPARTIAL BIT(0) @@ -421,7 +422,7 @@ static void fou_release(struct fou *fou) list_del(&fou->list); udp_tunnel_sock_release(sock); - kfree(fou); + kfree_rcu(fou, rcu); } static int fou_encap_init(struct sock *sk, struct fou *fou, struct fou_cfg *cfg) |