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netns xfrm: per-netns xfrm_state counts

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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 17:18:39 -08:00 committed by David S. Miller
parent 529983ecab
commit 0bf7c5b019
2 changed files with 8 additions and 7 deletions
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1
include/net/netns/xfrm.h
View File

@ -17,6 +17,7 @@ struct netns_xfrm {
struct hlist_head *state_bysrc;
struct hlist_head *state_byspi;
unsigned int state_hmask;
unsigned int state_num;
};
#endif

14
net/xfrm/xfrm_state.c
View File

@ -45,7 +45,6 @@ u32 sysctl_xfrm_acq_expires __read_mostly = 30;
static DEFINE_SPINLOCK(xfrm_state_lock);
static unsigned int xfrm_state_hashmax __read_mostly = 1 * 1024 * 1024;
static unsigned int xfrm_state_num;
static unsigned int xfrm_state_genid;
static struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned int family);
@ -548,7 +547,7 @@ int __xfrm_state_delete(struct xfrm_state *x)
hlist_del(&x->bysrc);
if (x->id.spi)
hlist_del(&x->byspi);
xfrm_state_num--;
init_net.xfrm.state_num--;
spin_unlock(&xfrm_state_lock);
/* All xfrm_state objects are created by xfrm_state_alloc.
@ -650,7 +649,7 @@ EXPORT_SYMBOL(xfrm_state_flush);
void xfrm_sad_getinfo(struct xfrmk_sadinfo *si)
{
spin_lock_bh(&xfrm_state_lock);
si->sadcnt = xfrm_state_num;
si->sadcnt = init_net.xfrm.state_num;
si->sadhcnt = init_net.xfrm.state_hmask;
si->sadhmcnt = xfrm_state_hashmax;
spin_unlock_bh(&xfrm_state_lock);
@ -754,7 +753,7 @@ static void xfrm_hash_grow_check(int have_hash_collision)
{
if (have_hash_collision &&
(init_net.xfrm.state_hmask + 1) < xfrm_state_hashmax &&
xfrm_state_num > init_net.xfrm.state_hmask)
init_net.xfrm.state_num > init_net.xfrm.state_hmask)
schedule_work(&xfrm_hash_work);
}
@ -855,7 +854,7 @@ xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
x->lft.hard_add_expires_seconds = sysctl_xfrm_acq_expires;
x->timer.expires = jiffies + sysctl_xfrm_acq_expires*HZ;
add_timer(&x->timer);
xfrm_state_num++;
init_net.xfrm.state_num++;
xfrm_hash_grow_check(x->bydst.next != NULL);
} else {
x->km.state = XFRM_STATE_DEAD;
@ -935,7 +934,7 @@ static void __xfrm_state_insert(struct xfrm_state *x)
wake_up(&km_waitq);
xfrm_state_num++;
init_net.xfrm.state_num++;
xfrm_hash_grow_check(x->bydst.next != NULL);
}
@ -1047,7 +1046,7 @@ static struct xfrm_state *__find_acq_core(unsigned short family, u8 mode, u32 re
h = xfrm_src_hash(daddr, saddr, family);
hlist_add_head(&x->bysrc, init_net.xfrm.state_bysrc+h);
xfrm_state_num++;
init_net.xfrm.state_num++;
xfrm_hash_grow_check(x->bydst.next != NULL);
}
@ -2089,6 +2088,7 @@ int __net_init xfrm_state_init(struct net *net)
goto out_byspi;
net->xfrm.state_hmask = ((sz / sizeof(struct hlist_head)) - 1);
net->xfrm.state_num = 0;
INIT_WORK(&xfrm_state_gc_work, xfrm_state_gc_task);
return 0;