#include <linux/timer.h>
#include <linux/sunrpc/types.h>
+#include <linux/rcupdate.h>
#include <linux/spinlock.h>
#include <linux/wait.h>
#include <linux/workqueue.h>
struct rpc_cred * rpc_cred; /* Credentials */
};
+struct rpc_call_ops;
struct rpc_wait_queue;
struct rpc_wait {
struct list_head list; /* wait queue links */
struct list_head links; /* Links to related tasks */
- wait_queue_head_t waitq; /* sync: sleep on this q */
struct rpc_wait_queue * rpc_waitq; /* RPC wait queue we're on */
};
#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 */
* RPC call state
*/
struct rpc_message tk_msg; /* RPC call info */
- __u32 * tk_buffer; /* XDR buffer */
- size_t tk_bufsize;
- __u8 tk_garb_retry,
- tk_cred_retry,
- tk_suid_retry;
+ __u8 tk_garb_retry;
+ __u8 tk_cred_retry;
unsigned long tk_cookie; /* Cookie for batching tasks */
* timeout_fn to be executed by timer bottom half
* callback to be executed after waking up
* action next procedure for async tasks
- * exit exit async task and report to caller
+ * tk_ops caller callbacks
*/
void (*tk_timeout_fn)(struct rpc_task *);
void (*tk_callback)(struct rpc_task *);
void (*tk_action)(struct rpc_task *);
- void (*tk_exit)(struct rpc_task *);
- void (*tk_release)(struct rpc_task *);
+ const struct rpc_call_ops *tk_ops;
void * tk_calldata;
/*
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
union {
struct work_struct tk_work; /* Async task work queue */
struct rpc_wait tk_wait; /* RPC wait */
+ struct rcu_head tk_rcu; /* for task deletion */
} u;
+
+ unsigned short tk_timeouts; /* maj timeouts */
+ size_t tk_bytes_sent; /* total bytes sent */
+ unsigned long tk_start; /* RPC task init timestamp */
+ long tk_rtt; /* round-trip time (jiffies) */
+
#ifdef RPC_DEBUG
unsigned short tk_pid; /* debugging aid */
#endif
typedef void (*rpc_action)(struct rpc_task *);
+struct rpc_call_ops {
+ void (*rpc_call_prepare)(struct rpc_task *, void *);
+ void (*rpc_call_done)(struct rpc_task *, void *);
+ void (*rpc_release)(void *);
+};
+
+
/*
* RPC task flags
*/
#define RPC_TASK_ASYNC 0x0001 /* is an async task */
#define RPC_TASK_SWAPPER 0x0002 /* is swapping in/out */
-#define RPC_TASK_SETUID 0x0004 /* is setuid process */
-#define RPC_TASK_CHILD 0x0008 /* is child of other task */
-#define RPC_CALL_REALUID 0x0010 /* try using real uid */
#define RPC_CALL_MAJORSEEN 0x0020 /* major timeout seen */
#define RPC_TASK_ROOTCREDS 0x0040 /* force root creds */
#define RPC_TASK_DYNAMIC 0x0080 /* task was kmalloc'ed */
#define RPC_TASK_NOINTR 0x0400 /* uninterruptible task */
#define RPC_IS_ASYNC(t) ((t)->tk_flags & RPC_TASK_ASYNC)
-#define RPC_IS_SETUID(t) ((t)->tk_flags & RPC_TASK_SETUID)
-#define RPC_IS_CHILD(t) ((t)->tk_flags & RPC_TASK_CHILD)
#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)
#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))
smp_mb__after_clear_bit(); \
} while (0)
+#define RPC_IS_ACTIVATED(t) (test_bit(RPC_TASK_ACTIVE, &(t)->tk_runstate))
+
/*
* Task priorities.
* Note: if you change these, you must also change
unsigned char priority; /* current priority */
unsigned char count; /* # task groups remaining serviced so far */
unsigned char nr; /* # tasks remaining for cookie */
+ unsigned short qlen; /* total # tasks waiting in queue */
#ifdef RPC_DEBUG
const char * name;
#endif
#ifndef RPC_DEBUG
# define RPC_WAITQ_INIT(var,qname) { \
- .lock = SPIN_LOCK_UNLOCKED, \
+ .lock = __SPIN_LOCK_UNLOCKED(var.lock), \
.tasks = { \
[0] = LIST_HEAD_INIT(var.tasks[0]), \
[1] = LIST_HEAD_INIT(var.tasks[1]), \
}
#else
# define RPC_WAITQ_INIT(var,qname) { \
- .lock = SPIN_LOCK_UNLOCKED, \
+ .lock = __SPIN_LOCK_UNLOCKED(var.lock), \
.tasks = { \
[0] = LIST_HEAD_INIT(var.tasks[0]), \
[1] = LIST_HEAD_INIT(var.tasks[1]), \
/*
* Function prototypes
*/
-struct rpc_task *rpc_new_task(struct rpc_clnt *, rpc_action, int flags);
-struct rpc_task *rpc_new_child(struct rpc_clnt *, struct rpc_task *parent);
-void rpc_init_task(struct rpc_task *, struct rpc_clnt *,
- rpc_action exitfunc, int flags);
-void rpc_release_task(struct rpc_task *);
+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);
+void rpc_init_task(struct rpc_task *task, struct rpc_clnt *clnt,
+ int flags, const struct rpc_call_ops *ops,
+ void *data);
+void rpc_put_task(struct rpc_task *);
+void rpc_exit_task(struct rpc_task *);
+void rpc_release_calldata(const struct rpc_call_ops *, void *);
void rpc_killall_tasks(struct rpc_clnt *);
int rpc_execute(struct rpc_task *);
-void rpc_run_child(struct rpc_task *parent, struct rpc_task *child,
- rpc_action action);
void rpc_init_priority_wait_queue(struct rpc_wait_queue *, const char *);
void rpc_init_wait_queue(struct rpc_wait_queue *, const char *);
void rpc_sleep_on(struct rpc_wait_queue *, struct rpc_task *,
void rpc_wake_up_status(struct rpc_wait_queue *, int);
void rpc_delay(struct rpc_task *, unsigned long);
void * rpc_malloc(struct rpc_task *, size_t);
+void rpc_free(struct rpc_task *);
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
int rpc_init_mempool(void);
void rpc_destroy_mempool(void);
+extern struct workqueue_struct *rpciod_workqueue;
static inline void rpc_exit(struct rpc_task *task, int status)
{
task->tk_status = status;
- task->tk_action = NULL;
+ 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
git://git.onelab.eu / linux-2.6.git / blobdiff