1 files changed, 19 insertions, 2 deletions

diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index ac1326fc3e1a..94b0afa4ab05 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -42,6 +42,7 @@ struct rpc_task {
 #ifdef RPC_DEBUG
         unsigned long           tk_magic;       /* 0xf00baa */
 #endif
+        atomic_t                tk_count;       /* Reference count */
         struct list_head        tk_task;        /* global list of tasks */
         struct rpc_clnt *       tk_client;      /* RPC client */
         struct rpc_rqst *       tk_rqstp;       /* RPC request */
@@ -78,7 +79,6 @@ struct rpc_task {
         struct timer_list       tk_timer;       /* kernel timer */
         unsigned long           tk_timeout;     /* timeout for rpc_sleep() */
         unsigned short          tk_flags;       /* misc flags */
-        unsigned char           tk_active   : 1;/* Task has been activated */
         unsigned char           tk_priority : 2;/* Task priority */
         unsigned long           tk_runstate;    /* Task run status */
         struct workqueue_struct *tk_workqueue;  /* Normally rpciod, but could
@@ -136,7 +136,6 @@ struct rpc_call_ops {
 #define RPC_IS_SWAPPER(t)       ((t)->tk_flags & RPC_TASK_SWAPPER)
 #define RPC_DO_ROOTOVERRIDE(t)  ((t)->tk_flags & RPC_TASK_ROOTCREDS)
 #define RPC_ASSASSINATED(t)     ((t)->tk_flags & RPC_TASK_KILLED)
-#define RPC_IS_ACTIVATED(t)     ((t)->tk_active)
 #define RPC_DO_CALLBACK(t)      ((t)->tk_callback != NULL)
 #define RPC_IS_SOFT(t)          ((t)->tk_flags & RPC_TASK_SOFT)
 #define RPC_TASK_UNINTERRUPTIBLE(t) ((t)->tk_flags & RPC_TASK_NOINTR)
@@ -145,6 +144,7 @@ struct rpc_call_ops {
 #define RPC_TASK_QUEUED         1
 #define RPC_TASK_WAKEUP         2
 #define RPC_TASK_HAS_TIMER      3
+#define RPC_TASK_ACTIVE         4
 
 #define RPC_IS_RUNNING(t)       (test_bit(RPC_TASK_RUNNING, &(t)->tk_runstate))
 #define rpc_set_running(t)      (set_bit(RPC_TASK_RUNNING, &(t)->tk_runstate))
@@ -175,6 +175,15 @@ struct rpc_call_ops {
                 smp_mb__after_clear_bit(); \
         } while (0)
 
+#define RPC_IS_ACTIVATED(t)     (test_bit(RPC_TASK_ACTIVE, &(t)->tk_runstate))
+#define rpc_set_active(t)       (set_bit(RPC_TASK_ACTIVE, &(t)->tk_runstate))
+#define rpc_clear_active(t)     \
+        do { \
+                smp_mb__before_clear_bit(); \
+                clear_bit(RPC_TASK_ACTIVE, &(t)->tk_runstate); \
+                smp_mb__after_clear_bit(); \
+        } while(0)
+
 /*
  * Task priorities.
  * Note: if you change these, you must also change
@@ -237,6 +246,8 @@ struct rpc_wait_queue {
  */
 struct rpc_task *rpc_new_task(struct rpc_clnt *, int flags,
                                 const struct rpc_call_ops *ops, void *data);
+struct rpc_task *rpc_run_task(struct rpc_clnt *clnt, int flags,
+                                const struct rpc_call_ops *ops, void *data);
 struct rpc_task *rpc_new_child(struct rpc_clnt *, struct rpc_task *parent);
 void            rpc_init_task(struct rpc_task *task, struct rpc_clnt *clnt,
                                 int flags, const struct rpc_call_ops *ops,
@@ -260,6 +271,7 @@ void *		rpc_malloc(struct rpc_task *, size_t);
 int             rpciod_up(void);
 void            rpciod_down(void);
 void            rpciod_wake_up(void);
+int             __rpc_wait_for_completion_task(struct rpc_task *task, int (*)(void *));
 #ifdef RPC_DEBUG
 void            rpc_show_tasks(void);
 #endif
@@ -272,6 +284,11 @@ static inline void rpc_exit(struct rpc_task *task, int status)
         task->tk_action = rpc_exit_task;
 }
 
+static inline int rpc_wait_for_completion_task(struct rpc_task *task)
+{
+        return __rpc_wait_for_completion_task(task, NULL);
+}
+
 #ifdef RPC_DEBUG
 static inline const char * rpc_qname(struct rpc_wait_queue *q)
 {