diff options
| -rw-r--r-- | net/9p/trans_fd.c | 32 |
1 files changed, 8 insertions, 24 deletions
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c index e9f797d2441..a30471e5174 100644 --- a/net/9p/trans_fd.c +++ b/net/9p/trans_fd.c @@ -153,9 +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 task_struct *p9_poll_task; +static DECLARE_WORK(p9_poll_work, p9_poll_workfn); static void p9_mux_poll_stop(struct p9_conn *m) { @@ -515,15 +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; } /** @@ -1046,12 +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, @@ -1066,28 +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_poll_task = kthread_run(p9_poll_proc, NULL, "v9fs-poll"); - if (IS_ERR(p9_poll_task)) { - 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); @@ -1097,7 +1081,7 @@ 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); |