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author | Steffen Klassert <steffen.klassert@secunet.com> | 2014-02-19 10:07:34 +0100 |
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committer | Steffen Klassert <steffen.klassert@secunet.com> | 2014-02-19 10:35:43 +0100 |
commit | 1a1ccc96abb2ed9b8fbb71018e64b97324caef53 (patch) | |
tree | 0888c68978167c36ce434344264afb19cf83a7c7 /net/xfrm/xfrm_policy.c | |
parent | d3623099d3509fa68fa28235366049dd3156c63a (diff) | |
download | op-kernel-dev-1a1ccc96abb2ed9b8fbb71018e64b97324caef53.zip op-kernel-dev-1a1ccc96abb2ed9b8fbb71018e64b97324caef53.tar.gz |
xfrm: Remove caching of xfrm_policy_sk_bundles
We currently cache socket policy bundles at xfrm_policy_sk_bundles.
These cached bundles are never used. Instead we create and cache
a new one whenever xfrm_lookup() is called on a socket policy.
Most protocols cache the used routes to the socket, so let's
remove the unused caching of socket policy bundles in xfrm.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/xfrm/xfrm_policy.c')
-rw-r--r-- | net/xfrm/xfrm_policy.c | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 2232c6f..bb3669d 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -39,8 +39,6 @@ #define XFRM_QUEUE_TMO_MAX ((unsigned)(60*HZ)) #define XFRM_MAX_QUEUE_LEN 100 -static struct dst_entry *xfrm_policy_sk_bundles; - static DEFINE_SPINLOCK(xfrm_policy_afinfo_lock); static struct xfrm_policy_afinfo __rcu *xfrm_policy_afinfo[NPROTO] __read_mostly; @@ -2109,13 +2107,6 @@ struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig, goto no_transform; } - dst_hold(&xdst->u.dst); - - spin_lock_bh(&net->xfrm.xfrm_policy_sk_bundle_lock); - xdst->u.dst.next = xfrm_policy_sk_bundles; - xfrm_policy_sk_bundles = &xdst->u.dst; - spin_unlock_bh(&net->xfrm.xfrm_policy_sk_bundle_lock); - route = xdst->route; } } @@ -2549,33 +2540,15 @@ static struct dst_entry *xfrm_negative_advice(struct dst_entry *dst) return dst; } -static void __xfrm_garbage_collect(struct net *net) -{ - struct dst_entry *head, *next; - - spin_lock_bh(&net->xfrm.xfrm_policy_sk_bundle_lock); - head = xfrm_policy_sk_bundles; - xfrm_policy_sk_bundles = NULL; - spin_unlock_bh(&net->xfrm.xfrm_policy_sk_bundle_lock); - - while (head) { - next = head->next; - dst_free(head); - head = next; - } -} - void xfrm_garbage_collect(struct net *net) { flow_cache_flush(net); - __xfrm_garbage_collect(net); } EXPORT_SYMBOL(xfrm_garbage_collect); static void xfrm_garbage_collect_deferred(struct net *net) { flow_cache_flush_deferred(net); - __xfrm_garbage_collect(net); } static void xfrm_init_pmtu(struct dst_entry *dst) @@ -2944,7 +2917,6 @@ static int __net_init xfrm_net_init(struct net *net) /* Initialize the per-net locks here */ spin_lock_init(&net->xfrm.xfrm_state_lock); rwlock_init(&net->xfrm.xfrm_policy_lock); - spin_lock_init(&net->xfrm.xfrm_policy_sk_bundle_lock); mutex_init(&net->xfrm.xfrm_cfg_mutex); flow_cache_init(net); |