The svc_sock_enqueue function is now transport independent since all of
the fields it touches have been moved to the transport independent svc_xprt
structure. Change the function to use the svc_xprt structure directly
instead of the transport specific svc_sock structure.
Transport specific data-ready handlers need to call this function, so
export it.
Signed-off-by: Tom Tucker <[email protected]>
---
net/sunrpc/svcsock.c | 94 ++++++++++++++++++++++++++------------------------
1 files changed, 48 insertions(+), 46 deletions(-)
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index ec5ad81..f356c02 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -5,7 +5,7 @@
*
* The server scheduling algorithm does not always distribute the load
* evenly when servicing a single client. May need to modify the
- * svc_sock_enqueue procedure...
+ * svc_xprt_enqueue procedure...
*
* TCP support is largely untested and may be a little slow. The problem
* is that we currently do two separate recvfrom's, one for the 4-byte
@@ -63,7 +63,7 @@
* providing that certain rules are followed:
*
* XPT_CONN, XPT_DATA, can be set or cleared at any time.
- * after a set, svc_sock_enqueue must be called.
+ * after a set, svc_xprt_enqueue must be called.
* after a clear, the socket must be read/accepted
* if this succeeds, it must be set again.
* XPT_CLOSE can set at any time. It is never cleared.
@@ -212,22 +212,21 @@ static void svc_release_skb(struct svc_rqst *rqstp)
* processes, wake 'em up.
*
*/
-static void
-svc_sock_enqueue(struct svc_sock *svsk)
+void svc_xprt_enqueue(struct svc_xprt *xprt)
{
- struct svc_serv *serv = svsk->sk_xprt.xpt_server;
+ struct svc_serv *serv = xprt->xpt_server;
struct svc_pool *pool;
struct svc_rqst *rqstp;
int cpu;
- if (!(svsk->sk_xprt.xpt_flags &
+ if (!(xprt->xpt_flags &
((1<<XPT_CONN)|(1<<XPT_DATA)|(1<<XPT_CLOSE)|(1<<XPT_DEFERRED))))
return;
- if (test_bit(XPT_DEAD, &svsk->sk_xprt.xpt_flags))
+ if (test_bit(XPT_DEAD, &xprt->xpt_flags))
return;
cpu = get_cpu();
- pool = svc_pool_for_cpu(svsk->sk_xprt.xpt_server, cpu);
+ pool = svc_pool_for_cpu(xprt->xpt_server, cpu);
put_cpu();
spin_lock_bh(&pool->sp_lock);
@@ -235,11 +234,12 @@ svc_sock_enqueue(struct svc_sock *svsk)
if (!list_empty(&pool->sp_threads) &&
!list_empty(&pool->sp_sockets))
printk(KERN_ERR
- "svc_sock_enqueue: threads and sockets both waiting??\n");
+ "svc_xprt_enqueue: "
+ "threads and transports both waiting??\n");
- if (test_bit(XPT_DEAD, &svsk->sk_xprt.xpt_flags)) {
+ if (test_bit(XPT_DEAD, &xprt->xpt_flags)) {
/* Don't enqueue dead sockets */
- dprintk("svc: socket %p is dead, not enqueued\n", svsk->sk_sk);
+ dprintk("svc: transport %p is dead, not enqueued\n", xprt);
goto out_unlock;
}
@@ -248,28 +248,29 @@ svc_sock_enqueue(struct svc_sock *svsk)
* on the idle list. We update XPT_BUSY atomically because
* it also guards against trying to enqueue the svc_sock twice.
*/
- if (test_and_set_bit(XPT_BUSY, &svsk->sk_xprt.xpt_flags)) {
+ if (test_and_set_bit(XPT_BUSY, &xprt->xpt_flags)) {
/* Don't enqueue socket while already enqueued */
- dprintk("svc: socket %p busy, not enqueued\n", svsk->sk_sk);
+ dprintk("svc: transport %p busy, not enqueued\n", xprt);
goto out_unlock;
}
- BUG_ON(svsk->sk_xprt.xpt_pool != NULL);
- svsk->sk_xprt.xpt_pool = pool;
+ BUG_ON(xprt->xpt_pool != NULL);
+ xprt->xpt_pool = pool;
/* Handle pending connection */
- if (test_bit(XPT_CONN, &svsk->sk_xprt.xpt_flags))
+ if (test_bit(XPT_CONN, &xprt->xpt_flags))
goto process;
/* Handle close in-progress */
- if (test_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags))
+ if (test_bit(XPT_CLOSE, &xprt->xpt_flags))
goto process;
/* Check if we have space to reply to a request */
- if (!svsk->sk_xprt.xpt_ops->xpo_has_wspace(&svsk->sk_xprt)) {
+ if (!xprt->xpt_ops->xpo_has_wspace(xprt)) {
/* Don't enqueue while not enough space for reply */
- dprintk("svc: no write space, socket %p not enqueued\n", svsk);
- svsk->sk_xprt.xpt_pool = NULL;
- clear_bit(XPT_BUSY, &svsk->sk_xprt.xpt_flags);
+ dprintk("svc: no write space, transport %p not enqueued\n",
+ xprt);
+ xprt->xpt_pool = NULL;
+ clear_bit(XPT_BUSY, &xprt->xpt_flags);
goto out_unlock;
}
@@ -278,28 +279,29 @@ svc_sock_enqueue(struct svc_sock *svsk)
rqstp = list_entry(pool->sp_threads.next,
struct svc_rqst,
rq_list);
- dprintk("svc: socket %p served by daemon %p\n",
- svsk->sk_sk, rqstp);
+ dprintk("svc: transport %p served by daemon %p\n",
+ xprt, rqstp);
svc_thread_dequeue(pool, rqstp);
- if (rqstp->rq_sock)
+ if (rqstp->rq_xprt)
printk(KERN_ERR
- "svc_sock_enqueue: server %p, rq_sock=%p!\n",
- rqstp, rqstp->rq_sock);
- rqstp->rq_sock = svsk;
- svc_xprt_get(&svsk->sk_xprt);
+ "svc_xprt_enqueue: server %p, rq_xprt=%p!\n",
+ rqstp, rqstp->rq_xprt);
+ rqstp->rq_xprt = xprt;
+ svc_xprt_get(xprt);
rqstp->rq_reserved = serv->sv_max_mesg;
- atomic_add(rqstp->rq_reserved, &svsk->sk_xprt.xpt_reserved);
- BUG_ON(svsk->sk_xprt.xpt_pool != pool);
+ atomic_add(rqstp->rq_reserved, &xprt->xpt_reserved);
+ BUG_ON(xprt->xpt_pool != pool);
wake_up(&rqstp->rq_wait);
} else {
- dprintk("svc: socket %p put into queue\n", svsk->sk_sk);
- list_add_tail(&svsk->sk_xprt.xpt_ready, &pool->sp_sockets);
- BUG_ON(svsk->sk_xprt.xpt_pool != pool);
+ dprintk("svc: transport %p put into queue\n", xprt);
+ list_add_tail(&xprt->xpt_ready, &pool->sp_sockets);
+ BUG_ON(xprt->xpt_pool != pool);
}
out_unlock:
spin_unlock_bh(&pool->sp_lock);
}
+EXPORT_SYMBOL_GPL(svc_xprt_enqueue);
/*
* Dequeue the first socket. Must be called with the pool->sp_lock held.
@@ -333,7 +335,7 @@ svc_sock_received(struct svc_sock *svsk)
{
svsk->sk_xprt.xpt_pool = NULL;
clear_bit(XPT_BUSY, &svsk->sk_xprt.xpt_flags);
- svc_sock_enqueue(svsk);
+ svc_xprt_enqueue(&svsk->sk_xprt);
}
@@ -352,11 +354,11 @@ void svc_reserve(struct svc_rqst *rqstp, int space)
space += rqstp->rq_res.head[0].iov_len;
if (space < rqstp->rq_reserved) {
- struct svc_sock *svsk = rqstp->rq_sock;
- atomic_sub((rqstp->rq_reserved - space), &svsk->sk_xprt.xpt_reserved);
+ struct svc_xprt *xprt = rqstp->rq_xprt;
+ atomic_sub((rqstp->rq_reserved - space), &xprt->xpt_reserved);
rqstp->rq_reserved = space;
- svc_sock_enqueue(svsk);
+ svc_xprt_enqueue(xprt);
}
}
@@ -684,7 +686,7 @@ svc_udp_data_ready(struct sock *sk, int count)
svsk, sk, count,
test_bit(XPT_BUSY, &svsk->sk_xprt.xpt_flags));
set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags);
- svc_sock_enqueue(svsk);
+ svc_xprt_enqueue(&svsk->sk_xprt);
}
if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
wake_up_interruptible(sk->sk_sleep);
@@ -701,7 +703,7 @@ svc_write_space(struct sock *sk)
if (svsk) {
dprintk("svc: socket %p(inet %p), write_space busy=%d\n",
svsk, sk, test_bit(XPT_BUSY, &svsk->sk_xprt.xpt_flags));
- svc_sock_enqueue(svsk);
+ svc_xprt_enqueue(&svsk->sk_xprt);
}
if (sk->sk_sleep && waitqueue_active(sk->sk_sleep)) {
@@ -973,7 +975,7 @@ svc_tcp_listen_data_ready(struct sock *sk, int count_unused)
if (sk->sk_state == TCP_LISTEN) {
if (svsk) {
set_bit(XPT_CONN, &svsk->sk_xprt.xpt_flags);
- svc_sock_enqueue(svsk);
+ svc_xprt_enqueue(&svsk->sk_xprt);
} else
printk("svc: socket %p: no user data\n", sk);
}
@@ -997,7 +999,7 @@ svc_tcp_state_change(struct sock *sk)
printk("svc: socket %p: no user data\n", sk);
else {
set_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags);
- svc_sock_enqueue(svsk);
+ svc_xprt_enqueue(&svsk->sk_xprt);
}
if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
wake_up_interruptible_all(sk->sk_sleep);
@@ -1012,7 +1014,7 @@ svc_tcp_data_ready(struct sock *sk, int count)
sk, sk->sk_user_data);
if (svsk) {
set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags);
- svc_sock_enqueue(svsk);
+ svc_xprt_enqueue(&svsk->sk_xprt);
}
if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
wake_up_interruptible(sk->sk_sleep);
@@ -1298,7 +1300,7 @@ svc_tcp_sendto(struct svc_rqst *rqstp)
(sent<0)?"got error":"sent only",
sent, xbufp->len);
set_bit(XPT_CLOSE, &rqstp->rq_sock->sk_xprt.xpt_flags);
- svc_sock_enqueue(rqstp->rq_sock);
+ svc_xprt_enqueue(rqstp->rq_xprt);
sent = -EAGAIN;
}
return sent;
@@ -1476,7 +1478,7 @@ static void svc_check_conn_limits(struct svc_serv *serv)
spin_unlock_bh(&serv->sv_lock);
if (svsk) {
- svc_sock_enqueue(svsk);
+ svc_xprt_enqueue(&svsk->sk_xprt);
svc_xprt_put(&svsk->sk_xprt);
}
}
@@ -1709,7 +1711,7 @@ svc_age_temp_sockets(unsigned long closure)
svsk, get_seconds() - svsk->sk_lastrecv);
/* a thread will dequeue and close it soon */
- svc_sock_enqueue(svsk);
+ svc_xprt_enqueue(&svsk->sk_xprt);
svc_xprt_put(&svsk->sk_xprt);
}
@@ -1991,7 +1993,7 @@ static void svc_revisit(struct cache_deferred_req *dreq, int too_many)
list_add(&dr->handle.recent, &svsk->sk_deferred);
spin_unlock(&svsk->sk_lock);
set_bit(XPT_DEFERRED, &svsk->sk_xprt.xpt_flags);
- svc_sock_enqueue(svsk);
+ svc_xprt_enqueue(&svsk->sk_xprt);
svc_xprt_put(&svsk->sk_xprt);
}