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authorDavid S. Miller <davem@davemloft.net>2010-02-17 13:41:40 -0800
committerDavid S. Miller <davem@davemloft.net>2010-02-17 13:41:40 -0800
commit069c474e88bb7753183f1eadbd7786c27888c8e3 (patch)
tree09b0385d34a2d0b302b1f61a2783bfcdc510732f /net/xfrm
parent08326dbe7b5825295ec3711eec53b093549749e5 (diff)
downloadlinux-2.6.34-ux500-069c474e88bb7753183f1eadbd7786c27888c8e3.tar.gz
xfrm: Revert false event eliding commits.
As reported by Alexey Dobriyan: -------------------- setkey now takes several seconds to run this simple script and it spits "recv: Resource temporarily unavailable" messages. #!/usr/sbin/setkey -f flush; spdflush; add A B ipcomp 44 -m tunnel -C deflate; add B A ipcomp 45 -m tunnel -C deflate; spdadd A B any -P in ipsec ipcomp/tunnel/192.168.1.2-192.168.1.3/use; spdadd B A any -P out ipsec ipcomp/tunnel/192.168.1.3-192.168.1.2/use; -------------------- Obviously applications want the events even when the table is empty. So we cannot make this behavioral change. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/xfrm')
-rw-r--r--net/xfrm/xfrm_policy.c13
-rw-r--r--net/xfrm/xfrm_state.c8
-rw-r--r--net/xfrm/xfrm_user.c4
3 files changed, 7 insertions, 18 deletions
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index cfceb6616ec..2c5d93181f1 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -771,8 +771,7 @@ xfrm_policy_flush_secctx_check(struct net *net, u8 type, struct xfrm_audit *audi
int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info)
{
- int dir, err = 0, cnt = 0;
- struct xfrm_policy *dp;
+ int dir, err = 0;
write_lock_bh(&xfrm_policy_lock);
@@ -790,10 +789,8 @@ int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info)
&net->xfrm.policy_inexact[dir], bydst) {
if (pol->type != type)
continue;
- dp = __xfrm_policy_unlink(pol, dir);
+ __xfrm_policy_unlink(pol, dir);
write_unlock_bh(&xfrm_policy_lock);
- if (dp)
- cnt++;
xfrm_audit_policy_delete(pol, 1, audit_info->loginuid,
audit_info->sessionid,
@@ -812,10 +809,8 @@ int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info)
bydst) {
if (pol->type != type)
continue;
- dp = __xfrm_policy_unlink(pol, dir);
+ __xfrm_policy_unlink(pol, dir);
write_unlock_bh(&xfrm_policy_lock);
- if (dp)
- cnt++;
xfrm_audit_policy_delete(pol, 1,
audit_info->loginuid,
@@ -829,8 +824,6 @@ int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info)
}
}
- if (!cnt)
- err = -ESRCH;
atomic_inc(&flow_cache_genid);
out:
write_unlock_bh(&xfrm_policy_lock);
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 9fa3322b2a7..c9d6a5f1348 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -603,14 +603,13 @@ xfrm_state_flush_secctx_check(struct net *net, u8 proto, struct xfrm_audit *audi
int xfrm_state_flush(struct net *net, u8 proto, struct xfrm_audit *audit_info)
{
- int i, err = 0, cnt = 0;
+ int i, err = 0;
spin_lock_bh(&xfrm_state_lock);
err = xfrm_state_flush_secctx_check(net, proto, audit_info);
if (err)
goto out;
- err = -ESRCH;
for (i = 0; i <= net->xfrm.state_hmask; i++) {
struct hlist_node *entry;
struct xfrm_state *x;
@@ -627,16 +626,13 @@ restart:
audit_info->sessionid,
audit_info->secid);
xfrm_state_put(x);
- if (!err)
- cnt++;
spin_lock_bh(&xfrm_state_lock);
goto restart;
}
}
}
- if (cnt)
- err = 0;
+ err = 0;
out:
spin_unlock_bh(&xfrm_state_lock);
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index b0fb7d3bc15..943c8712bd9 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -1525,7 +1525,7 @@ static int xfrm_flush_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
audit_info.secid = NETLINK_CB(skb).sid;
err = xfrm_state_flush(net, p->proto, &audit_info);
if (err)
- return 0;
+ return err;
c.data.proto = p->proto;
c.event = nlh->nlmsg_type;
c.seq = nlh->nlmsg_seq;
@@ -1677,7 +1677,7 @@ static int xfrm_flush_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
audit_info.secid = NETLINK_CB(skb).sid;
err = xfrm_policy_flush(net, type, &audit_info);
if (err)
- return 0;
+ return err;
c.data.type = type;
c.event = nlh->nlmsg_type;
c.seq = nlh->nlmsg_seq;