From: frank.blaschka@de.ibm.com
To: davem@davemloft.net
Cc: netdev@vger.kernel.org, linux-s390@vger.kernel.org,
Ursula Braun <ursula.braun@de.ibm.com>
Subject: [patch 05/10] [PATCH] af_iucv: get rid of state IUCV_SEVERED
Date: Tue, 20 Dec 2011 09:56:31 +0100 [thread overview]
Message-ID: <20111220085736.014121083@de.ibm.com> (raw)
In-Reply-To: 20111220085626.924756639@de.ibm.com
[-- Attachment #1: 605-af_iucv-rm-iucv-severed.diff --]
[-- Type: text/plain, Size: 3954 bytes --]
From: Ursula Braun <ursula.braun@de.ibm.com>
af_iucv differs unnecessarily between state IUCV_SEVERED and
IUCV_DISCONN. This patch removes state IUCV_SEVERED.
While simplifying af_iucv, this patch removes the 2nd invocation of
cpcmd as well.
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
---
include/net/iucv/af_iucv.h | 1 -
net/iucv/af_iucv.c | 35 ++++++++---------------------------
2 files changed, 8 insertions(+), 28 deletions(-)
--- a/include/net/iucv/af_iucv.h
+++ b/include/net/iucv/af_iucv.h
@@ -27,7 +27,6 @@ enum {
IUCV_OPEN,
IUCV_BOUND,
IUCV_LISTEN,
- IUCV_SEVERED,
IUCV_DISCONN,
IUCV_CLOSING,
IUCV_CLOSED
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -178,7 +178,6 @@ static int afiucv_pm_freeze(struct devic
iucv_skb_queue_purge(&iucv->send_skb_q);
skb_queue_purge(&iucv->backlog_skb_q);
switch (sk->sk_state) {
- case IUCV_SEVERED:
case IUCV_DISCONN:
case IUCV_CLOSING:
case IUCV_CONNECTED:
@@ -223,7 +222,6 @@ static int afiucv_pm_restore_thaw(struct
sk->sk_state_change(sk);
break;
case IUCV_DISCONN:
- case IUCV_SEVERED:
case IUCV_CLOSING:
case IUCV_LISTEN:
case IUCV_BOUND:
@@ -661,16 +659,12 @@ struct sock *iucv_accept_dequeue(struct
}
if (sk->sk_state == IUCV_CONNECTED ||
- sk->sk_state == IUCV_SEVERED ||
- sk->sk_state == IUCV_DISCONN || /* due to PM restore */
+ sk->sk_state == IUCV_DISCONN ||
!newsock) {
iucv_accept_unlink(sk);
if (newsock)
sock_graft(sk, newsock);
- if (sk->sk_state == IUCV_SEVERED)
- sk->sk_state = IUCV_DISCONN;
-
release_sock(sk);
return sk;
}
@@ -760,16 +754,13 @@ done:
static int iucv_sock_autobind(struct sock *sk)
{
struct iucv_sock *iucv = iucv_sk(sk);
- char query_buffer[80];
char name[12];
int err = 0;
- /* Set the userid and name */
- cpcmd("QUERY USERID", query_buffer, sizeof(query_buffer), &err);
- if (unlikely(err))
+ if (unlikely(!pr_iucv))
return -EPROTO;
- memcpy(iucv->src_user_id, query_buffer, 8);
+ memcpy(iucv->src_user_id, iucv_userid, 8);
write_lock_bh(&iucv_sk_list.lock);
@@ -1345,7 +1336,7 @@ static int iucv_sock_recvmsg(struct kioc
int blen;
int err = 0;
- if ((sk->sk_state == IUCV_DISCONN || sk->sk_state == IUCV_SEVERED) &&
+ if ((sk->sk_state == IUCV_DISCONN) &&
skb_queue_empty(&iucv->backlog_skb_q) &&
skb_queue_empty(&sk->sk_receive_queue) &&
list_empty(&iucv->message_q.list))
@@ -1492,7 +1483,7 @@ unsigned int iucv_sock_poll(struct file
if (sk->sk_state == IUCV_CLOSED)
mask |= POLLHUP;
- if (sk->sk_state == IUCV_DISCONN || sk->sk_state == IUCV_SEVERED)
+ if (sk->sk_state == IUCV_DISCONN)
mask |= POLLIN;
if (sock_writeable(sk))
@@ -1519,7 +1510,6 @@ static int iucv_sock_shutdown(struct soc
switch (sk->sk_state) {
case IUCV_DISCONN:
case IUCV_CLOSING:
- case IUCV_SEVERED:
case IUCV_CLOSED:
err = -ENOTCONN;
goto fail;
@@ -1874,10 +1864,7 @@ static void iucv_callback_connrej(struct
{
struct sock *sk = path->private;
- if (!list_empty(&iucv_sk(sk)->accept_q))
- sk->sk_state = IUCV_SEVERED;
- else
- sk->sk_state = IUCV_DISCONN;
+ sk->sk_state = IUCV_DISCONN;
sk->sk_state_change(sk);
}
@@ -2037,10 +2024,7 @@ static int afiucv_hs_callback_fin(struct
/* other end of connection closed */
if (iucv) {
bh_lock_sock(sk);
- if (!list_empty(&iucv->accept_q))
- sk->sk_state = IUCV_SEVERED;
- else
- sk->sk_state = IUCV_DISCONN;
+ sk->sk_state = IUCV_DISCONN;
sk->sk_state_change(sk);
bh_unlock_sock(sk);
}
@@ -2269,10 +2253,7 @@ static void afiucv_hs_callback_txnotify(
__skb_unlink(this, list);
dev_put(this->dev);
kfree_skb(this);
- if (!list_empty(&iucv->accept_q))
- sk->sk_state = IUCV_SEVERED;
- else
- sk->sk_state = IUCV_DISCONN;
+ sk->sk_state = IUCV_DISCONN;
sk->sk_state_change(sk);
break;
}
next prev parent reply other threads:[~2011-12-20 8:56 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-20 8:56 [patch 00/10] s390: network driver features and fixes for net-next frank.blaschka
2011-12-20 8:56 ` [patch 01/10] [PATCH] af_iucv: support ancillary data with HS transport frank.blaschka
2011-12-20 8:56 ` [patch 02/10] [PATCH] af_iucv: accelerate close for " frank.blaschka
2011-12-20 8:56 ` [patch 03/10] [PATCH] af_iucv: release reference to HS device frank.blaschka
2011-12-20 8:56 ` [patch 04/10] [PATCH] af_iucv: remove unused timer infrastructure frank.blaschka
2011-12-20 8:56 ` frank.blaschka [this message]
2011-12-20 8:56 ` [patch 06/10] [PATCH] qeth: suspicious rcu_dereference_check in recovery frank.blaschka
2011-12-20 8:56 ` [patch 07/10] [PATCH] qeth: forbid recovery during shutdown frank.blaschka
2011-12-20 8:56 ` [patch 08/10] [PATCH] netiucv: allow multiple interfaces to same peer frank.blaschka
2011-12-20 8:56 ` [patch 09/10] [PATCH] qeth: improve recovery during resource shortage frank.blaschka
2011-12-20 8:56 ` [patch 10/10] [PATCH] qeth: recovery through asynchronous delivery frank.blaschka
2011-12-20 19:05 ` [patch 00/10] s390: network driver features and fixes for net-next David Miller
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