From 069c474e88bb7753183f1eadbd7786c27888c8e3 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 17 Feb 2010 13:41:40 -0800 Subject: 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 --- net/key/af_key.c | 4 ++-- net/xfrm/xfrm_policy.c | 13 +++---------- net/xfrm/xfrm_state.c | 8 ++------ net/xfrm/xfrm_user.c | 4 ++-- 4 files changed, 9 insertions(+), 20 deletions(-) diff --git a/net/key/af_key.c b/net/key/af_key.c index 8b8e26a9e401..79d2c0f3c334 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -1751,7 +1751,7 @@ static int pfkey_flush(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hd audit_info.secid = 0; err = xfrm_state_flush(net, proto, &audit_info); if (err) - return 0; + return err; c.data.proto = proto; c.seq = hdr->sadb_msg_seq; c.pid = hdr->sadb_msg_pid; @@ -2713,7 +2713,7 @@ static int pfkey_spdflush(struct sock *sk, struct sk_buff *skb, struct sadb_msg audit_info.secid = 0; err = xfrm_policy_flush(net, XFRM_POLICY_TYPE_MAIN, &audit_info); if (err) - return 0; + return err; c.data.type = XFRM_POLICY_TYPE_MAIN; c.event = XFRM_MSG_FLUSHPOLICY; c.pid = hdr->sadb_msg_pid; diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index cfceb6616ec1..2c5d93181f13 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 9fa3322b2a7d..c9d6a5f1348d 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 b0fb7d3bc15e..943c8712bd97 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; -- cgit v1.2.3