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xfrm: Cleanup for unlink SPD entry

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Used __xfrm_policy_unlink() to instead of the dup codes when unlink
SPD entry.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Wei Yongjun 2008-12-03 00:33:09 -08:00 committed by David S. Miller
parent 22d55328b7
commit 29fa0b301b
1 changed files with 10 additions and 25 deletions
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35
net/xfrm/xfrm_policy.c
View file

@ -51,6 +51,9 @@ static struct xfrm_policy_afinfo *xfrm_policy_get_afinfo(unsigned short family);
static void xfrm_policy_put_afinfo(struct xfrm_policy_afinfo *afinfo);
static void xfrm_init_pmtu(struct dst_entry *dst);
static struct xfrm_policy *__xfrm_policy_unlink(struct xfrm_policy *pol,
int dir);
static inline int
__xfrm4_selector_match(struct xfrm_selector *sel, struct flowi *fl)
{
@ -584,12 +587,8 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl)
xfrm_pol_hold(policy);
net->xfrm.policy_count[dir]++;
atomic_inc(&flow_cache_genid);
if (delpol) {
hlist_del(&delpol->bydst);
hlist_del(&delpol->byidx);
list_del(&delpol->walk.all);
net->xfrm.policy_count[dir]--;
}
if (delpol)
__xfrm_policy_unlink(delpol, dir);
policy->index = delpol ? delpol->index : xfrm_gen_index(net, dir);
hlist_add_head(&policy->byidx, net->xfrm.policy_byidx+idx_hash(net, policy->index));
policy->curlft.add_time = get_seconds();
@ -661,10 +660,7 @@ struct xfrm_policy *xfrm_policy_bysel_ctx(struct net *net, u8 type, int dir,
write_unlock_bh(&xfrm_policy_lock);
return pol;
}
hlist_del(&pol->bydst);
hlist_del(&pol->byidx);
list_del(&pol->walk.all);
net->xfrm.policy_count[dir]--;
__xfrm_policy_unlink(pol, dir);
}
ret = pol;
break;
@ -705,10 +701,7 @@ struct xfrm_policy *xfrm_policy_byid(struct net *net, u8 type, int dir, u32 id,
write_unlock_bh(&xfrm_policy_lock);
return pol;
}
hlist_del(&pol->bydst);
hlist_del(&pol->byidx);
list_del(&pol->walk.all);
net->xfrm.policy_count[dir]--;
__xfrm_policy_unlink(pol, dir);
}
ret = pol;
break;
@ -789,17 +782,14 @@ int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info)
for (dir = 0; dir < XFRM_POLICY_MAX; dir++) {
struct xfrm_policy *pol;
struct hlist_node *entry;
int i, killed;
int i;
killed = 0;
again1:
hlist_for_each_entry(pol, entry,
&net->xfrm.policy_inexact[dir], bydst) {
if (pol->type != type)
continue;
hlist_del(&pol->bydst);
hlist_del(&pol->byidx);
list_del(&pol->walk.all);
__xfrm_policy_unlink(pol, dir);
write_unlock_bh(&xfrm_policy_lock);
xfrm_audit_policy_delete(pol, 1, audit_info->loginuid,
@ -807,7 +797,6 @@ int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info)
audit_info->secid);
xfrm_policy_kill(pol);
killed++;
write_lock_bh(&xfrm_policy_lock);
goto again1;
@ -820,9 +809,7 @@ int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info)
bydst) {
if (pol->type != type)
continue;
hlist_del(&pol->bydst);
hlist_del(&pol->byidx);
list_del(&pol->walk.all);
__xfrm_policy_unlink(pol, dir);
write_unlock_bh(&xfrm_policy_lock);
xfrm_audit_policy_delete(pol, 1,
@ -830,14 +817,12 @@ int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info)
audit_info->sessionid,
audit_info->secid);
xfrm_policy_kill(pol);
killed++;
write_lock_bh(&xfrm_policy_lock);
goto again2;
}
}
net->xfrm.policy_count[dir] -= killed;
}
atomic_inc(&flow_cache_genid);
out: