aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--include/linux/sunrpc/sched.h3
-rw-r--r--include/linux/sunrpc/xprtsock.h5
-rw-r--r--net/sunrpc/sched.c72
-rw-r--r--net/sunrpc/xprt.c61
-rw-r--r--net/sunrpc/xprtrdma/rpc_rdma.c4
-rw-r--r--net/sunrpc/xprtrdma/svc_rdma_backchannel.c4
-rw-r--r--net/sunrpc/xprtrdma/svc_rdma_transport.c8
-rw-r--r--net/sunrpc/xprtsock.c101
8 files changed, 167 insertions, 91 deletions
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index d0e451868f02..7d8db5dcac04 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -183,8 +183,9 @@ struct rpc_task_setup {
#define RPC_NR_PRIORITY (1 + RPC_PRIORITY_PRIVILEGED - RPC_PRIORITY_LOW)
struct rpc_timer {
- struct timer_list timer;
struct list_head list;
+ unsigned long expires;
+ struct delayed_work dwork;
};
/*
diff --git a/include/linux/sunrpc/xprtsock.h b/include/linux/sunrpc/xprtsock.h
index b81d0b3e0799..7638dbe7bc50 100644
--- a/include/linux/sunrpc/xprtsock.h
+++ b/include/linux/sunrpc/xprtsock.h
@@ -56,6 +56,7 @@ struct sock_xprt {
*/
unsigned long sock_state;
struct delayed_work connect_worker;
+ struct work_struct error_worker;
struct work_struct recv_worker;
struct mutex recv_mutex;
struct sockaddr_storage srcaddr;
@@ -84,6 +85,10 @@ struct sock_xprt {
#define XPRT_SOCK_CONNECTING 1U
#define XPRT_SOCK_DATA_READY (2)
#define XPRT_SOCK_UPD_TIMEOUT (3)
+#define XPRT_SOCK_WAKE_ERROR (4)
+#define XPRT_SOCK_WAKE_WRITE (5)
+#define XPRT_SOCK_WAKE_PENDING (6)
+#define XPRT_SOCK_WAKE_DISCONNECT (7)
#endif /* __KERNEL__ */
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index f8ea362fae91..f820780280b5 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -47,7 +47,7 @@ static mempool_t *rpc_buffer_mempool __read_mostly;
static void rpc_async_schedule(struct work_struct *);
static void rpc_release_task(struct rpc_task *task);
-static void __rpc_queue_timer_fn(struct timer_list *t);
+static void __rpc_queue_timer_fn(struct work_struct *);
/*
* RPC tasks sit here while waiting for conditions to improve.
@@ -88,13 +88,19 @@ __rpc_disable_timer(struct rpc_wait_queue *queue, struct rpc_task *task)
task->tk_timeout = 0;
list_del(&task->u.tk_wait.timer_list);
if (list_empty(&queue->timer_list.list))
- del_timer(&queue->timer_list.timer);
+ cancel_delayed_work(&queue->timer_list.dwork);
}
static void
rpc_set_queue_timer(struct rpc_wait_queue *queue, unsigned long expires)
{
- timer_reduce(&queue->timer_list.timer, expires);
+ unsigned long now = jiffies;
+ queue->timer_list.expires = expires;
+ if (time_before_eq(expires, now))
+ expires = 0;
+ else
+ expires -= now;
+ mod_delayed_work(rpciod_workqueue, &queue->timer_list.dwork, expires);
}
/*
@@ -108,7 +114,8 @@ __rpc_add_timer(struct rpc_wait_queue *queue, struct rpc_task *task,
task->tk_pid, jiffies_to_msecs(timeout - jiffies));
task->tk_timeout = timeout;
- rpc_set_queue_timer(queue, timeout);
+ if (list_empty(&queue->timer_list.list) || time_before(timeout, queue->timer_list.expires))
+ rpc_set_queue_timer(queue, timeout);
list_add(&task->u.tk_wait.timer_list, &queue->timer_list.list);
}
@@ -251,7 +258,8 @@ static void __rpc_init_priority_wait_queue(struct rpc_wait_queue *queue, const c
queue->maxpriority = nr_queues - 1;
rpc_reset_waitqueue_priority(queue);
queue->qlen = 0;
- timer_setup(&queue->timer_list.timer, __rpc_queue_timer_fn, 0);
+ queue->timer_list.expires = 0;
+ INIT_DEFERRABLE_WORK(&queue->timer_list.dwork, __rpc_queue_timer_fn);
INIT_LIST_HEAD(&queue->timer_list.list);
rpc_assign_waitqueue_name(queue, qname);
}
@@ -270,7 +278,7 @@ EXPORT_SYMBOL_GPL(rpc_init_wait_queue);
void rpc_destroy_wait_queue(struct rpc_wait_queue *queue)
{
- del_timer_sync(&queue->timer_list.timer);
+ cancel_delayed_work_sync(&queue->timer_list.dwork);
}
EXPORT_SYMBOL_GPL(rpc_destroy_wait_queue);
@@ -425,9 +433,9 @@ void rpc_sleep_on_timeout(struct rpc_wait_queue *q, struct rpc_task *task,
/*
* Protect the queue operations.
*/
- spin_lock_bh(&q->lock);
+ spin_lock(&q->lock);
__rpc_sleep_on_priority_timeout(q, task, timeout, task->tk_priority);
- spin_unlock_bh(&q->lock);
+ spin_unlock(&q->lock);
}
EXPORT_SYMBOL_GPL(rpc_sleep_on_timeout);
@@ -443,9 +451,9 @@ void rpc_sleep_on(struct rpc_wait_queue *q, struct rpc_task *task,
/*
* Protect the queue operations.
*/
- spin_lock_bh(&q->lock);
+ spin_lock(&q->lock);
__rpc_sleep_on_priority(q, task, task->tk_priority);
- spin_unlock_bh(&q->lock);
+ spin_unlock(&q->lock);
}
EXPORT_SYMBOL_GPL(rpc_sleep_on);
@@ -459,9 +467,9 @@ void rpc_sleep_on_priority_timeout(struct rpc_wait_queue *q,
/*
* Protect the queue operations.
*/
- spin_lock_bh(&q->lock);
+ spin_lock(&q->lock);
__rpc_sleep_on_priority_timeout(q, task, timeout, priority);
- spin_unlock_bh(&q->lock);
+ spin_unlock(&q->lock);
}
EXPORT_SYMBOL_GPL(rpc_sleep_on_priority_timeout);
@@ -476,9 +484,9 @@ void rpc_sleep_on_priority(struct rpc_wait_queue *q, struct rpc_task *task,
/*
* Protect the queue operations.
*/
- spin_lock_bh(&q->lock);
+ spin_lock(&q->lock);
__rpc_sleep_on_priority(q, task, priority);
- spin_unlock_bh(&q->lock);
+ spin_unlock(&q->lock);
}
EXPORT_SYMBOL_GPL(rpc_sleep_on_priority);
@@ -556,9 +564,9 @@ void rpc_wake_up_queued_task_on_wq(struct workqueue_struct *wq,
{
if (!RPC_IS_QUEUED(task))
return;
- spin_lock_bh(&queue->lock);
+ spin_lock(&queue->lock);
rpc_wake_up_task_on_wq_queue_locked(wq, queue, task);
- spin_unlock_bh(&queue->lock);
+ spin_unlock(&queue->lock);
}
/*
@@ -568,9 +576,9 @@ void rpc_wake_up_queued_task(struct rpc_wait_queue *queue, struct rpc_task *task
{
if (!RPC_IS_QUEUED(task))
return;
- spin_lock_bh(&queue->lock);
+ spin_lock(&queue->lock);
rpc_wake_up_task_queue_locked(queue, task);
- spin_unlock_bh(&queue->lock);
+ spin_unlock(&queue->lock);
}
EXPORT_SYMBOL_GPL(rpc_wake_up_queued_task);
@@ -603,9 +611,9 @@ rpc_wake_up_queued_task_set_status(struct rpc_wait_queue *queue,
{
if (!RPC_IS_QUEUED(task))
return;
- spin_lock_bh(&queue->lock);
+ spin_lock(&queue->lock);
rpc_wake_up_task_queue_set_status_locked(queue, task, status);
- spin_unlock_bh(&queue->lock);
+ spin_unlock(&queue->lock);
}
/*
@@ -668,12 +676,12 @@ struct rpc_task *rpc_wake_up_first_on_wq(struct workqueue_struct *wq,
dprintk("RPC: wake_up_first(%p \"%s\")\n",
queue, rpc_qname(queue));
- spin_lock_bh(&queue->lock);
+ spin_lock(&queue->lock);
task = __rpc_find_next_queued(queue);
if (task != NULL)
task = rpc_wake_up_task_on_wq_queue_action_locked(wq, queue,
task, func, data);
- spin_unlock_bh(&queue->lock);
+ spin_unlock(&queue->lock);
return task;
}
@@ -712,7 +720,7 @@ void rpc_wake_up(struct rpc_wait_queue *queue)
{
struct list_head *head;
- spin_lock_bh(&queue->lock);
+ spin_lock(&queue->lock);
head = &queue->tasks[queue->maxpriority];
for (;;) {
while (!list_empty(head)) {
@@ -726,7 +734,7 @@ void rpc_wake_up(struct rpc_wait_queue *queue)
break;
head--;
}
- spin_unlock_bh(&queue->lock);
+ spin_unlock(&queue->lock);
}
EXPORT_SYMBOL_GPL(rpc_wake_up);
@@ -741,7 +749,7 @@ void rpc_wake_up_status(struct rpc_wait_queue *queue, int status)
{
struct list_head *head;
- spin_lock_bh(&queue->lock);
+ spin_lock(&queue->lock);
head = &queue->tasks[queue->maxpriority];
for (;;) {
while (!list_empty(head)) {
@@ -756,13 +764,15 @@ void rpc_wake_up_status(struct rpc_wait_queue *queue, int status)
break;
head--;
}
- spin_unlock_bh(&queue->lock);
+ spin_unlock(&queue->lock);
}
EXPORT_SYMBOL_GPL(rpc_wake_up_status);
-static void __rpc_queue_timer_fn(struct timer_list *t)
+static void __rpc_queue_timer_fn(struct work_struct *work)
{
- struct rpc_wait_queue *queue = from_timer(queue, t, timer_list.timer);
+ struct rpc_wait_queue *queue = container_of(work,
+ struct rpc_wait_queue,
+ timer_list.dwork.work);
struct rpc_task *task, *n;
unsigned long expires, now, timeo;
@@ -932,13 +942,13 @@ static void __rpc_execute(struct rpc_task *task)
* rpc_task pointer may still be dereferenced.
*/
queue = task->tk_waitqueue;
- spin_lock_bh(&queue->lock);
+ spin_lock(&queue->lock);
if (!RPC_IS_QUEUED(task)) {
- spin_unlock_bh(&queue->lock);
+ spin_unlock(&queue->lock);
continue;
}
rpc_clear_running(task);
- spin_unlock_bh(&queue->lock);
+ spin_unlock(&queue->lock);
if (task_is_async)
return;
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index ab6b4c729ca5..c4d138202abb 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -302,9 +302,9 @@ static inline int xprt_lock_write(struct rpc_xprt *xprt, struct rpc_task *task)
if (test_bit(XPRT_LOCKED, &xprt->state) && xprt->snd_task == task)
return 1;
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
retval = xprt->ops->reserve_xprt(xprt, task);
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
return retval;
}
@@ -381,9 +381,9 @@ static inline void xprt_release_write(struct rpc_xprt *xprt, struct rpc_task *ta
{
if (xprt->snd_task != task)
return;
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
xprt->ops->release_xprt(xprt, task);
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
}
/*
@@ -435,9 +435,9 @@ xprt_request_get_cong(struct rpc_xprt *xprt, struct rpc_rqst *req)
if (req->rq_cong)
return true;
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
ret = __xprt_get_cong(xprt, req) != 0;
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
return ret;
}
EXPORT_SYMBOL_GPL(xprt_request_get_cong);
@@ -464,9 +464,9 @@ static void
xprt_clear_congestion_window_wait(struct rpc_xprt *xprt)
{
if (test_and_clear_bit(XPRT_CWND_WAIT, &xprt->state)) {
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
__xprt_lock_write_next_cong(xprt);
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
}
}
@@ -563,9 +563,9 @@ bool xprt_write_space(struct rpc_xprt *xprt)
if (!test_bit(XPRT_WRITE_SPACE, &xprt->state))
return false;
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
ret = xprt_clear_write_space_locked(xprt);
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
return ret;
}
EXPORT_SYMBOL_GPL(xprt_write_space);
@@ -634,9 +634,9 @@ int xprt_adjust_timeout(struct rpc_rqst *req)
req->rq_retries = 0;
xprt_reset_majortimeo(req);
/* Reset the RTT counters == "slow start" */
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
rpc_init_rtt(req->rq_task->tk_client->cl_rtt, to->to_initval);
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
status = -ETIMEDOUT;
}
@@ -668,11 +668,11 @@ static void xprt_autoclose(struct work_struct *work)
void xprt_disconnect_done(struct rpc_xprt *xprt)
{
dprintk("RPC: disconnected transport %p\n", xprt);
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
xprt_clear_connected(xprt);
xprt_clear_write_space_locked(xprt);
xprt_wake_pending_tasks(xprt, -ENOTCONN);
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
}
EXPORT_SYMBOL_GPL(xprt_disconnect_done);
@@ -684,7 +684,7 @@ EXPORT_SYMBOL_GPL(xprt_disconnect_done);
void xprt_force_disconnect(struct rpc_xprt *xprt)
{
/* Don't race with the test_bit() in xprt_clear_locked() */
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
set_bit(XPRT_CLOSE_WAIT, &xprt->state);
/* Try to schedule an autoclose RPC call */
if (test_and_set_bit(XPRT_LOCKED, &xprt->state) == 0)
@@ -692,7 +692,7 @@ void xprt_force_disconnect(struct rpc_xprt *xprt)
else if (xprt->snd_task)
rpc_wake_up_queued_task_set_status(&xprt->pending,
xprt->snd_task, -ENOTCONN);
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
}
EXPORT_SYMBOL_GPL(xprt_force_disconnect);
@@ -726,7 +726,7 @@ xprt_request_retransmit_after_disconnect(struct rpc_task *task)
void xprt_conditional_disconnect(struct rpc_xprt *xprt, unsigned int cookie)
{
/* Don't race with the test_bit() in xprt_clear_locked() */
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
if (cookie != xprt->connect_cookie)
goto out;
if (test_bit(XPRT_CLOSING, &xprt->state))
@@ -737,7 +737,7 @@ void xprt_conditional_disconnect(struct rpc_xprt *xprt, unsigned int cookie)
queue_work(xprtiod_workqueue, &xprt->task_cleanup);
xprt_wake_pending_tasks(xprt, -EAGAIN);
out:
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
}
static bool
@@ -759,18 +759,13 @@ xprt_init_autodisconnect(struct timer_list *t)
{
struct rpc_xprt *xprt = from_timer(xprt, t, timer);
- spin_lock(&xprt->transport_lock);
if (!RB_EMPTY_ROOT(&xprt->recv_queue))
- goto out_abort;
+ return;
/* Reset xprt->last_used to avoid connect/autodisconnect cycling */
xprt->last_used = jiffies;
if (test_and_set_bit(XPRT_LOCKED, &xprt->state))
- goto out_abort;
- spin_unlock(&xprt->transport_lock);
+ return;
queue_work(xprtiod_workqueue, &xprt->task_cleanup);
- return;
-out_abort:
- spin_unlock(&xprt->transport_lock);
}
bool xprt_lock_connect(struct rpc_xprt *xprt,
@@ -779,7 +774,7 @@ bool xprt_lock_connect(struct rpc_xprt *xprt,
{
bool ret = false;
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
if (!test_bit(XPRT_LOCKED, &xprt->state))
goto out;
if (xprt->snd_task != task)
@@ -787,13 +782,13 @@ bool xprt_lock_connect(struct rpc_xprt *xprt,
xprt->snd_task = cookie;
ret = true;
out:
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
return ret;
}
void xprt_unlock_connect(struct rpc_xprt *xprt, void *cookie)
{
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
if (xprt->snd_task != cookie)
goto out;
if (!test_bit(XPRT_LOCKED, &xprt->state))
@@ -802,7 +797,7 @@ void xprt_unlock_connect(struct rpc_xprt *xprt, void *cookie)
xprt->ops->release_xprt(xprt, NULL);
xprt_schedule_autodisconnect(xprt);
out:
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
wake_up_bit(&xprt->state, XPRT_LOCKED);
}
@@ -1412,14 +1407,14 @@ xprt_request_transmit(struct rpc_rqst *req, struct rpc_task *snd_task)
xprt_inject_disconnect(xprt);
task->tk_flags |= RPC_TASK_SENT;
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
xprt->stat.sends++;
xprt->stat.req_u += xprt->stat.sends - xprt->stat.recvs;
xprt->stat.bklog_u += xprt->backlog.qlen;
xprt->stat.sending_u += xprt->sending.qlen;
xprt->stat.pending_u += xprt->pending.qlen;
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
req->rq_connect_cookie = connect_cookie;
out_dequeue:
@@ -1766,13 +1761,13 @@ void xprt_release(struct rpc_task *task)
xprt = req->rq_xprt;
xprt_request_dequeue_all(task, req);
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
xprt->ops->release_xprt(xprt, task);
if (xprt->ops->release_request)
xprt->ops->release_request(task);
xprt->last_used = jiffies;
xprt_schedule_autodisconnect(xprt);
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
if (req->rq_buffer)
xprt->ops->buf_free(task);
xprt_inject_disconnect(xprt);
diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index 85115a2e2639..7dc62e55f526 100644
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -1360,10 +1360,10 @@ void rpcrdma_reply_handler(struct rpcrdma_rep *rep)
else if (credits > buf->rb_max_requests)
credits = buf->rb_max_requests;
if (buf->rb_credits != credits) {
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
buf->rb_credits = credits;
xprt->cwnd = credits << RPC_CWNDSHIFT;
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
}
req = rpcr_to_rdmar(rqst);
diff --git a/net/sunrpc/xprtrdma/svc_rdma_backchannel.c b/net/sunrpc/xprtrdma/svc_rdma_backchannel.c
index bed57d8b5c19..d1fcc41d5eb5 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_backchannel.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_backchannel.c
@@ -72,9 +72,9 @@ int svc_rdma_handle_bc_reply(struct rpc_xprt *xprt, __be32 *rdma_resp,
else if (credits > r_xprt->rx_buf.rb_bc_max_requests)
credits = r_xprt->rx_buf.rb_bc_max_requests;
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
xprt->cwnd = credits << RPC_CWNDSHIFT;
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
spin_lock(&xprt->queue_lock);
ret = 0;
diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
index 0004535c0188..3fe665152d95 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
@@ -226,9 +226,9 @@ static void handle_connect_req(struct rdma_cm_id *new_cma_id,
* Enqueue the new transport on the accept queue of the listening
* transport
*/
- spin_lock_bh(&listen_xprt->sc_lock);
+ spin_lock(&listen_xprt->sc_lock);
list_add_tail(&newxprt->sc_accept_q, &listen_xprt->sc_accept_q);
- spin_unlock_bh(&listen_xprt->sc_lock);
+ spin_unlock(&listen_xprt->sc_lock);
set_bit(XPT_CONN, &listen_xprt->sc_xprt.xpt_flags);
svc_xprt_enqueue(&listen_xprt->sc_xprt);
@@ -401,7 +401,7 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
listen_rdma = container_of(xprt, struct svcxprt_rdma, sc_xprt);
clear_bit(XPT_CONN, &xprt->xpt_flags);
/* Get the next entry off the accept list */
- spin_lock_bh(&listen_rdma->sc_lock);
+ spin_lock(&listen_rdma->sc_lock);
if (!list_empty(&listen_rdma->sc_accept_q)) {
newxprt = list_entry(listen_rdma->sc_accept_q.next,
struct svcxprt_rdma, sc_accept_q);
@@ -409,7 +409,7 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
}
if (!list_empty(&listen_rdma->sc_accept_q))
set_bit(XPT_CONN, &listen_rdma->sc_xprt.xpt_flags);
- spin_unlock_bh(&listen_rdma->sc_lock);
+ spin_unlock(&listen_rdma->sc_lock);
if (!newxprt)
return NULL;
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 36652352a38c..97c15d47f343 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -880,7 +880,7 @@ static int xs_nospace(struct rpc_rqst *req)
req->rq_slen);
/* Protect against races with write_space */
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
/* Don't race with disconnect */
if (xprt_connected(xprt)) {
@@ -890,7 +890,7 @@ static int xs_nospace(struct rpc_rqst *req)
} else
ret = -ENOTCONN;
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
/* Race breaker in case memory is freed before above code is called */
if (ret == -EAGAIN) {
@@ -1211,6 +1211,15 @@ static void xs_sock_reset_state_flags(struct rpc_xprt *xprt)
struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
clear_bit(XPRT_SOCK_DATA_READY, &transport->sock_state);
+ clear_bit(XPRT_SOCK_WAKE_ERROR, &transport->sock_state);
+ clear_bit(XPRT_SOCK_WAKE_WRITE, &transport->sock_state);
+ clear_bit(XPRT_SOCK_WAKE_DISCONNECT, &transport->sock_state);
+}
+
+static void xs_run_error_worker(struct sock_xprt *transport, unsigned int nr)
+{
+ set_bit(nr, &transport->sock_state);
+ queue_work(xprtiod_workqueue, &transport->error_worker);
}
static void xs_sock_reset_connection_flags(struct rpc_xprt *xprt)
@@ -1231,6 +1240,7 @@ static void xs_sock_reset_connection_flags(struct rpc_xprt *xprt)
*/
static void xs_error_report(struct sock *sk)
{
+ struct sock_xprt *transport;
struct rpc_xprt *xprt;
int err;
@@ -1238,13 +1248,14 @@ static void xs_error_report(struct sock *sk)
if (!(xprt = xprt_from_sock(sk)))
goto out;
+ transport = container_of(xprt, struct sock_xprt, xprt);
err = -sk->sk_err;
if (err == 0)
goto out;
dprintk("RPC: xs_error_report client %p, error=%d...\n",
xprt, -err);
trace_rpc_socket_error(xprt, sk->sk_socket, err);
- xprt_wake_pending_tasks(xprt, err);
+ xs_run_error_worker(transport, XPRT_SOCK_WAKE_ERROR);
out:
read_unlock_bh(&sk->sk_callback_lock);
}
@@ -1333,6 +1344,7 @@ static void xs_destroy(struct rpc_xprt *xprt)
cancel_delayed_work_sync(&transport->connect_worker);
xs_close(xprt);
cancel_work_sync(&transport->recv_worker);
+ cancel_work_sync(&transport->error_worker);
xs_xprt_free(xprt);
module_put(THIS_MODULE);
}
@@ -1386,9 +1398,9 @@ static void xs_udp_data_read_skb(struct rpc_xprt *xprt,
}
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
xprt_adjust_cwnd(xprt, task, copied);
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
spin_lock(&xprt->queue_lock);
xprt_complete_rqst(task, copied);
__UDPX_INC_STATS(sk, UDP_MIB_INDATAGRAMS);
@@ -1498,7 +1510,6 @@ static void xs_tcp_state_change(struct sock *sk)
trace_rpc_socket_state_change(xprt, sk->sk_socket);
switch (sk->sk_state) {
case TCP_ESTABLISHED:
- spin_lock(&xprt->transport_lock);
if (!xprt_test_and_set_connected(xprt)) {
xprt->connect_cookie++;
clear_bit(XPRT_SOCK_CONNECTING, &transport->sock_state);
@@ -1507,9 +1518,8 @@ static void xs_tcp_state_change(struct sock *sk)
xprt->stat.connect_count++;
xprt->stat.connect_time += (long)jiffies -
xprt->stat.connect_start;
- xprt_wake_pending_tasks(xprt, -EAGAIN);
+ xs_run_error_worker(transport, XPRT_SOCK_WAKE_PENDING);
}
- spin_unlock(&xprt->transport_lock);
break;
case TCP_FIN_WAIT1:
/* The client initiated a shutdown of the socket */
@@ -1525,7 +1535,7 @@ static void xs_tcp_state_change(struct sock *sk)
/* The server initiated a shutdown of the socket */
xprt->connect_cookie++;
clear_bit(XPRT_CONNECTED, &xprt->state);
- xs_tcp_force_close(xprt);
+ xs_run_error_worker(transport, XPRT_SOCK_WAKE_DISCONNECT);
/* fall through */
case TCP_CLOSING:
/*
@@ -1547,7 +1557,7 @@ static void xs_tcp_state_change(struct sock *sk)
xprt_clear_connecting(xprt);
clear_bit(XPRT_CLOSING, &xprt->state);
/* Trigger the socket release */
- xs_tcp_force_close(xprt);
+ xs_run_error_worker(transport, XPRT_SOCK_WAKE_DISCONNECT);
}
out:
read_unlock_bh(&sk->sk_callback_lock);
@@ -1556,6 +1566,7 @@ static void xs_tcp_state_change(struct sock *sk)
static void xs_write_space(struct sock *sk)
{
struct socket_wq *wq;
+ struct sock_xprt *transport;
struct rpc_xprt *xprt;
if (!sk->sk_socket)
@@ -1564,13 +1575,14 @@ static void xs_write_space(struct sock *sk)
if (unlikely(!(xprt = xprt_from_sock(sk))))
return;
+ transport = container_of(xprt, struct sock_xprt, xprt);
rcu_read_lock();
wq = rcu_dereference(sk->sk_wq);
if (!wq || test_and_clear_bit(SOCKWQ_ASYNC_NOSPACE, &wq->flags) == 0)
goto out;
- if (xprt_write_space(xprt))
- sk->sk_write_pending--;
+ xs_run_error_worker(transport, XPRT_SOCK_WAKE_WRITE);
+ sk->sk_write_pending--;
out:
rcu_read_unlock();
}
@@ -1664,9 +1676,9 @@ static void xs_udp_set_buffer_size(struct rpc_xprt *xprt, size_t sndsize, size_t
*/
static void xs_udp_timer(struct rpc_xprt *xprt, struct rpc_task *task)
{
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
xprt_adjust_cwnd(xprt, task, -ETIMEDOUT);
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
}
static int xs_get_random_port(void)
@@ -2201,13 +2213,13 @@ static void xs_tcp_set_socket_timeouts(struct rpc_xprt *xprt,
unsigned int opt_on = 1;
unsigned int timeo;
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
keepidle = DIV_ROUND_UP(xprt->timeout->to_initval, HZ);
keepcnt = xprt->timeout->to_retries + 1;
timeo = jiffies_to_msecs(xprt->timeout->to_initval) *
(xprt->timeout->to_retries + 1);
clear_bit(XPRT_SOCK_UPD_TIMEOUT, &transport->sock_state);
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
/* TCP Keepalive options */
kernel_setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE,
@@ -2232,7 +2244,7 @@ static void xs_tcp_set_connect_timeout(struct rpc_xprt *xprt,
struct rpc_timeout to;
unsigned long initval;
- spin_lock_bh(&xprt->transport_lock);
+ spin_lock(&xprt->transport_lock);
if (reconnect_timeout < xprt->max_reconnect_timeout)
xprt->max_reconnect_timeout = reconnect_timeout;
if (connect_timeout < xprt->connect_timeout) {
@@ -2249,7 +2261,7 @@ static void xs_tcp_set_connect_timeout(struct rpc_xprt *xprt,
xprt->connect_timeout = connect_timeout;
}
set_bit(XPRT_SOCK_UPD_TIMEOUT, &transport->sock_state);
- spin_unlock_bh(&xprt->transport_lock);
+ spin_unlock(&xprt->transport_lock);
}
static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
@@ -2461,6 +2473,56 @@ static void xs_connect(struct rpc_xprt *xprt, struct rpc_task *task)
delay);
}
+static void xs_wake_disconnect(struct sock_xprt *transport)
+{
+ if (test_and_clear_bit(XPRT_SOCK_WAKE_DISCONNECT, &transport->sock_state))
+ xs_tcp_force_close(&transport->xprt);
+}
+
+static void xs_wake_write(struct sock_xprt *transport)
+{
+ if (test_and_clear_bit(XPRT_SOCK_WAKE_WRITE, &transport->sock_state))
+ xprt_write_space(&transport->xprt);
+}
+
+static void xs_wake_error(struct sock_xprt *transport)
+{
+ int sockerr;
+ int sockerr_len = sizeof(sockerr);
+
+ if (!test_bit(XPRT_SOCK_WAKE_ERROR, &transport->sock_state))
+ return;
+ mutex_lock(&transport->recv_mutex);
+ if (transport->sock == NULL)
+ goto out;
+ if (!test_and_clear_bit(XPRT_SOCK_WAKE_ERROR, &transport->sock_state))
+ goto out;
+ if (kernel_getsockopt(transport->sock, SOL_SOCKET, SO_ERROR,
+ (char *)&sockerr, &sockerr_len) != 0)
+ goto out;
+ if (sockerr < 0)
+ xprt_wake_pending_tasks(&transport->xprt, sockerr);
+out:
+ mutex_unlock(&transport->recv_mutex);
+}
+
+static void xs_wake_pending(struct sock_xprt *transport)
+{
+ if (test_and_clear_bit(XPRT_SOCK_WAKE_PENDING, &transport->sock_state))
+ xprt_wake_pending_tasks(&transport->xprt, -EAGAIN);
+}
+
+static void xs_error_handle(struct work_struct *work)
+{
+ struct sock_xprt *transport = container_of(work,
+ struct sock_xprt, error_worker);
+
+ xs_wake_disconnect(transport);
+ xs_wake_write(transport);
+ xs_wake_error(transport);
+ xs_wake_pending(transport);
+}
+
/**
* xs_local_print_stats - display AF_LOCAL socket-specifc stats
* @xprt: rpc_xprt struct containing statistics
@@ -2873,6 +2935,7 @@ static struct rpc_xprt *xs_setup_local(struct xprt_create *args)
xprt->timeout = &xs_local_default_timeout;
INIT_WORK(&transport->recv_worker, xs_stream_data_receive_workfn);
+ INIT_WORK(&transport->error_worker, xs_error_handle);
INIT_DELAYED_WORK(&transport->connect_worker, xs_dummy_setup_socket);
switch (sun->sun_family) {
@@ -2943,6 +3006,7 @@ static struct rpc_xprt *xs_setup_udp(struct xprt_create *args)
xprt->timeout = &xs_udp_default_timeout;
INIT_WORK(&transport->recv_worker, xs_udp_data_receive_workfn);
+ INIT_WORK(&transport->error_worker, xs_error_handle);
INIT_DELAYED_WORK(&transport->connect_worker, xs_udp_setup_socket);
switch (addr->sa_family) {
@@ -3024,6 +3088,7 @@ static struct rpc_xprt *xs_setup_tcp(struct xprt_create *args)
(xprt->timeout->to_retries + 1);
INIT_WORK(&transport->recv_worker, xs_stream_data_receive_workfn);
+ INIT_WORK(&transport->error_worker, xs_error_handle);
INIT_DELAYED_WORK(&transport->connect_worker, xs_tcp_setup_socket);
switch (addr->sa_family) {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.