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netns xfrm: per-netns xfrm_state_bysrc hash 

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexey Dobriyan 2008-11-25 17:17:24 -08:00 committed by David S. Miller
parent 73d189dce4
commit d320bbb306
2 changed files with 15 additions and 9 deletions
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1
include/net/netns/xfrm.h
View File

@ -14,6 +14,7 @@ struct netns_xfrm {
* offending SA.
*/
struct hlist_head *state_bydst;
struct hlist_head *state_bysrc;
};
#endif

23
net/xfrm/xfrm_state.c
View File

@ -44,7 +44,6 @@ u32 sysctl_xfrm_acq_expires __read_mostly = 30;
static DEFINE_SPINLOCK(xfrm_state_lock);
static struct hlist_head *xfrm_state_bysrc __read_mostly;
static struct hlist_head *xfrm_state_byspi __read_mostly;
static unsigned int xfrm_state_hmask __read_mostly;
static unsigned int xfrm_state_hashmax __read_mostly = 1 * 1024 * 1024;
@ -154,12 +153,12 @@ static void xfrm_hash_resize(struct work_struct *__unused)
nhashmask);
odst = init_net.xfrm.state_bydst;
osrc = xfrm_state_bysrc;
osrc = init_net.xfrm.state_bysrc;
ospi = xfrm_state_byspi;
ohashmask = xfrm_state_hmask;
init_net.xfrm.state_bydst = ndst;
xfrm_state_bysrc = nsrc;
init_net.xfrm.state_bysrc = nsrc;
xfrm_state_byspi = nspi;
xfrm_state_hmask = nhashmask;
@ -712,7 +711,7 @@ static struct xfrm_state *__xfrm_state_lookup_byaddr(xfrm_address_t *daddr, xfrm
struct xfrm_state *x;
struct hlist_node *entry;
hlist_for_each_entry(x, entry, xfrm_state_bysrc+h, bysrc) {
hlist_for_each_entry(x, entry, init_net.xfrm.state_bysrc+h, bysrc) {
if (x->props.family != family ||
x->id.proto != proto)
continue;
@ -850,7 +849,7 @@ xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
list_add(&x->km.all, &init_net.xfrm.state_all);
hlist_add_head(&x->bydst, init_net.xfrm.state_bydst+h);
h = xfrm_src_hash(daddr, saddr, family);
hlist_add_head(&x->bysrc, xfrm_state_bysrc+h);
hlist_add_head(&x->bysrc, init_net.xfrm.state_bysrc+h);
if (x->id.spi) {
h = xfrm_spi_hash(&x->id.daddr, x->id.spi, x->id.proto, family);
hlist_add_head(&x->byspi, xfrm_state_byspi+h);
@ -923,7 +922,7 @@ static void __xfrm_state_insert(struct xfrm_state *x)
hlist_add_head(&x->bydst, init_net.xfrm.state_bydst+h);
h = xfrm_src_hash(&x->id.daddr, &x->props.saddr, x->props.family);
hlist_add_head(&x->bysrc, xfrm_state_bysrc+h);
hlist_add_head(&x->bysrc, init_net.xfrm.state_bysrc+h);
if (x->id.spi) {
h = xfrm_spi_hash(&x->id.daddr, x->id.spi, x->id.proto,
@ -1048,7 +1047,7 @@ static struct xfrm_state *__find_acq_core(unsigned short family, u8 mode, u32 re
list_add(&x->km.all, &init_net.xfrm.state_all);
hlist_add_head(&x->bydst, init_net.xfrm.state_bydst+h);
h = xfrm_src_hash(daddr, saddr, family);
hlist_add_head(&x->bysrc, xfrm_state_bysrc+h);
hlist_add_head(&x->bysrc, init_net.xfrm.state_bysrc+h);
xfrm_state_num++;
@ -1218,7 +1217,7 @@ struct xfrm_state * xfrm_migrate_state_find(struct xfrm_migrate *m)
} else {
h = xfrm_src_hash(&m->old_daddr, &m->old_saddr,
m->old_family);
hlist_for_each_entry(x, entry, xfrm_state_bysrc+h, bysrc) {
hlist_for_each_entry(x, entry, init_net.xfrm.state_bysrc+h, bysrc) {
if (x->props.mode != m->mode ||
x->id.proto != m->proto)
continue;
@ -2084,13 +2083,17 @@ int __net_init xfrm_state_init(struct net *net)
net->xfrm.state_bydst = xfrm_hash_alloc(sz);
if (!net->xfrm.state_bydst)
goto out_bydst;
xfrm_state_bysrc = xfrm_hash_alloc(sz);
net->xfrm.state_bysrc = xfrm_hash_alloc(sz);
if (!net->xfrm.state_bysrc)
goto out_bysrc;
xfrm_state_byspi = xfrm_hash_alloc(sz);
xfrm_state_hmask = ((sz / sizeof(struct hlist_head)) - 1);
INIT_WORK(&xfrm_state_gc_work, xfrm_state_gc_task);
return 0;
out_bysrc:
xfrm_hash_free(net->xfrm.state_bydst, sz);
out_bydst:
return -ENOMEM;
}
@ -2102,6 +2105,8 @@ void xfrm_state_fini(struct net *net)
WARN_ON(!list_empty(&net->xfrm.state_all));
sz = (xfrm_state_hmask + 1) * sizeof(struct hlist_head);
WARN_ON(!hlist_empty(net->xfrm.state_bysrc));
xfrm_hash_free(net->xfrm.state_bysrc, sz);
WARN_ON(!hlist_empty(net->xfrm.state_bydst));
xfrm_hash_free(net->xfrm.state_bydst, sz);
}