[XFRM]: Fix xfrm_state accounting
xfrm_state_num needs to be increased for XFRM_STATE_ACQ states created
by xfrm_state_find() to prevent the counter from going negative when
the state is destroyed.
Signed-off-by: Patrick McHardy <[EMAIL PROTECTED]>
---
commit d514f03d17b5f7615a549fbe2eb7b57a15aff609
tree 08a95a113236a858dafd3e57afcb959232164cac
parent 5c8ca15198f39a6d346f7573405dcff5c365805e
author Patrick McHardy <[EMAIL PROTECTED]> Wed, 25 Oct 2006 00:00:03 +0200
committer Patrick McHardy <[EMAIL PROTECTED]> Wed, 25 Oct 2006 00:00:03 +0200
net/xfrm/xfrm_state.c | 18 ++++++++++--------
1 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 84bbf84..899de9e 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -505,6 +505,14 @@ __xfrm_state_locate(struct xfrm_state *x
x->id.proto, family);
}
+static void xfrm_hash_grow_check(int have_hash_collision)
+{
+ if (have_hash_collision &&
+ (xfrm_state_hmask + 1) < xfrm_state_hashmax &&
+ xfrm_state_num > xfrm_state_hmask)
+ schedule_work(&xfrm_hash_work);
+}
+
struct xfrm_state *
xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
struct flowi *fl, struct xfrm_tmpl *tmpl,
@@ -598,6 +606,8 @@ xfrm_state_find(xfrm_address_t *daddr, x
x->lft.hard_add_expires_seconds = XFRM_ACQ_EXPIRES;
x->timer.expires = jiffies + XFRM_ACQ_EXPIRES*HZ;
add_timer(&x->timer);
+ xfrm_state_num++;
+ xfrm_hash_grow_check(x->bydst.next != NULL);
} else {
x->km.state = XFRM_STATE_DEAD;
xfrm_state_put(x);
@@ -614,14 +624,6 @@ out:
return x;
}
-static void xfrm_hash_grow_check(int have_hash_collision)
-{
- if (have_hash_collision &&
- (xfrm_state_hmask + 1) < xfrm_state_hashmax &&
- xfrm_state_num > xfrm_state_hmask)
- schedule_work(&xfrm_hash_work);
-}
-
static void __xfrm_state_insert(struct xfrm_state *x)
{
unsigned int h;
