AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-26 04:50:52 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

xfrm: Remove caching of xfrm_policy_sk_bundles

Browse Source 
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>
This commit is contained in:
Steffen Klassert 2014-02-19 10:07:34 +01:00
parent d3623099d3
commit 1a1ccc96ab
2 changed files with 0 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
include/net/netns/xfrm.h
View File

@ -59,7 +59,6 @@ struct netns_xfrm {
struct dst_ops xfrm6_dst_ops;
#endif
spinlock_t xfrm_state_lock;
spinlock_t xfrm_policy_sk_bundle_lock;
rwlock_t xfrm_policy_lock;
struct mutex xfrm_cfg_mutex;

28
net/xfrm/xfrm_policy.c
View File

@ -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);