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Diffstat (limited to 'net/9p/trans_fd.c')
-rw-r--r--net/9p/trans_fd.c52
1 files changed, 13 insertions, 39 deletions
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index 078eb162d9bf..a30471e51740 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -153,10 +153,11 @@ struct p9_conn {
unsigned long wsched;
};
+static void p9_poll_workfn(struct work_struct *work);
+
static DEFINE_SPINLOCK(p9_poll_lock);
static LIST_HEAD(p9_poll_pending_list);
-static struct workqueue_struct *p9_mux_wq;
-static struct task_struct *p9_poll_task;
+static DECLARE_WORK(p9_poll_work, p9_poll_workfn);
static void p9_mux_poll_stop(struct p9_conn *m)
{
@@ -384,7 +385,7 @@ static void p9_read_work(struct work_struct *work)
if (n & POLLIN) {
P9_DPRINTK(P9_DEBUG_TRANS, "sched read work %p\n", m);
- queue_work(p9_mux_wq, &m->rq);
+ schedule_work(&m->rq);
} else
clear_bit(Rworksched, &m->wsched);
} else
@@ -497,7 +498,7 @@ static void p9_write_work(struct work_struct *work)
if (n & POLLOUT) {
P9_DPRINTK(P9_DEBUG_TRANS, "sched write work %p\n", m);
- queue_work(p9_mux_wq, &m->wq);
+ schedule_work(&m->wq);
} else
clear_bit(Wworksched, &m->wsched);
} else
@@ -516,15 +517,14 @@ static int p9_pollwake(wait_queue_t *wait, unsigned mode, int sync, void *key)
container_of(wait, struct p9_poll_wait, wait);
struct p9_conn *m = pwait->conn;
unsigned long flags;
- DECLARE_WAITQUEUE(dummy_wait, p9_poll_task);
spin_lock_irqsave(&p9_poll_lock, flags);
if (list_empty(&m->poll_pending_link))
list_add_tail(&m->poll_pending_link, &p9_poll_pending_list);
spin_unlock_irqrestore(&p9_poll_lock, flags);
- /* perform the default wake up operation */
- return default_wake_function(&dummy_wait, mode, sync, key);
+ schedule_work(&p9_poll_work);
+ return 1;
}
/**
@@ -629,7 +629,7 @@ static void p9_poll_mux(struct p9_conn *m)
P9_DPRINTK(P9_DEBUG_TRANS, "mux %p can read\n", m);
if (!test_and_set_bit(Rworksched, &m->wsched)) {
P9_DPRINTK(P9_DEBUG_TRANS, "sched read work %p\n", m);
- queue_work(p9_mux_wq, &m->rq);
+ schedule_work(&m->rq);
}
}
@@ -639,7 +639,7 @@ static void p9_poll_mux(struct p9_conn *m)
if ((m->wsize || !list_empty(&m->unsent_req_list)) &&
!test_and_set_bit(Wworksched, &m->wsched)) {
P9_DPRINTK(P9_DEBUG_TRANS, "sched write work %p\n", m);
- queue_work(p9_mux_wq, &m->wq);
+ schedule_work(&m->wq);
}
}
}
@@ -677,7 +677,7 @@ static int p9_fd_request(struct p9_client *client, struct p9_req_t *req)
n = p9_fd_poll(m->client, NULL);
if (n & POLLOUT && !test_and_set_bit(Wworksched, &m->wsched))
- queue_work(p9_mux_wq, &m->wq);
+ schedule_work(&m->wq);
return 0;
}
@@ -1047,12 +1047,12 @@ static struct p9_trans_module p9_fd_trans = {
*
*/
-static int p9_poll_proc(void *a)
+static void p9_poll_workfn(struct work_struct *work)
{
unsigned long flags;
P9_DPRINTK(P9_DEBUG_TRANS, "start %p\n", current);
- repeat:
+
spin_lock_irqsave(&p9_poll_lock, flags);
while (!list_empty(&p9_poll_pending_list)) {
struct p9_conn *conn = list_first_entry(&p9_poll_pending_list,
@@ -1067,35 +1067,11 @@ static int p9_poll_proc(void *a)
}
spin_unlock_irqrestore(&p9_poll_lock, flags);
- set_current_state(TASK_INTERRUPTIBLE);
- if (list_empty(&p9_poll_pending_list)) {
- P9_DPRINTK(P9_DEBUG_TRANS, "sleeping...\n");
- schedule();
- }
- __set_current_state(TASK_RUNNING);
-
- if (!kthread_should_stop())
- goto repeat;
-
P9_DPRINTK(P9_DEBUG_TRANS, "finish\n");
- return 0;
}
int p9_trans_fd_init(void)
{
- p9_mux_wq = create_workqueue("v9fs");
- if (!p9_mux_wq) {
- printk(KERN_WARNING "v9fs: mux: creating workqueue failed\n");
- return -ENOMEM;
- }
-
- p9_poll_task = kthread_run(p9_poll_proc, NULL, "v9fs-poll");
- if (IS_ERR(p9_poll_task)) {
- destroy_workqueue(p9_mux_wq);
- printk(KERN_WARNING "v9fs: mux: creating poll task failed\n");
- return PTR_ERR(p9_poll_task);
- }
-
v9fs_register_trans(&p9_tcp_trans);
v9fs_register_trans(&p9_unix_trans);
v9fs_register_trans(&p9_fd_trans);
@@ -1105,10 +1081,8 @@ int p9_trans_fd_init(void)
void p9_trans_fd_exit(void)
{
- kthread_stop(p9_poll_task);
+ flush_work_sync(&p9_poll_work);
v9fs_unregister_trans(&p9_tcp_trans);
v9fs_unregister_trans(&p9_unix_trans);
v9fs_unregister_trans(&p9_fd_trans);
-
- destroy_workqueue(p9_mux_wq);
}