183 lines
6.2 KiB
C
183 lines
6.2 KiB
C
/****************************************************************************
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****************************************************************************
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***
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*** This header was automatically generated from a Linux kernel header
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*** of the same name, to make information necessary for userspace to
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*** call into the kernel available to libc. It contains only constants,
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*** structures, and macros generated from the original header, and thus,
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*** contains no copyrightable information.
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***
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****************************************************************************
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****************************************************************************/
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#ifndef _LINUX_SUNRPC_SCHED_H_
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#define _LINUX_SUNRPC_SCHED_H_
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#include <linux/timer.h>
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#include <linux/sunrpc/types.h>
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#include <linux/spinlock.h>
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#include <linux/wait.h>
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#include <linux/workqueue.h>
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#include <linux/sunrpc/xdr.h>
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struct rpc_procinfo;
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struct rpc_message {
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struct rpc_procinfo * rpc_proc;
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void * rpc_argp;
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void * rpc_resp;
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struct rpc_cred * rpc_cred;
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};
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struct rpc_call_ops;
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struct rpc_wait_queue;
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struct rpc_wait {
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struct list_head list;
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struct list_head links;
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struct rpc_wait_queue * rpc_waitq;
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};
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struct rpc_task {
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#ifdef RPC_DEBUG
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unsigned long tk_magic;
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#endif
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atomic_t tk_count;
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struct list_head tk_task;
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struct rpc_clnt * tk_client;
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struct rpc_rqst * tk_rqstp;
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int tk_status;
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struct rpc_message tk_msg;
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__u8 tk_garb_retry;
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__u8 tk_cred_retry;
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unsigned long tk_cookie;
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void (*tk_timeout_fn)(struct rpc_task *);
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void (*tk_callback)(struct rpc_task *);
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void (*tk_action)(struct rpc_task *);
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const struct rpc_call_ops *tk_ops;
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void * tk_calldata;
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struct timer_list tk_timer;
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unsigned long tk_timeout;
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unsigned short tk_flags;
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unsigned char tk_priority : 2;
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unsigned long tk_runstate;
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struct workqueue_struct *tk_workqueue;
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union {
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struct work_struct tk_work;
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struct rpc_wait tk_wait;
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} u;
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unsigned short tk_timeouts;
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size_t tk_bytes_sent;
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unsigned long tk_start;
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long tk_rtt;
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#ifdef RPC_DEBUG
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unsigned short tk_pid;
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#endif
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};
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#define tk_auth tk_client->cl_auth
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#define tk_xprt tk_client->cl_xprt
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#define task_for_each(task, pos, head) list_for_each(pos, head) if ((task=list_entry(pos, struct rpc_task, u.tk_wait.list)),1)
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#define task_for_first(task, head) if (!list_empty(head) && ((task=list_entry((head)->next, struct rpc_task, u.tk_wait.list)),1))
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#define alltask_for_each(task, pos, head) list_for_each(pos, head) if ((task=list_entry(pos, struct rpc_task, tk_task)),1)
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typedef void (*rpc_action)(struct rpc_task *);
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struct rpc_call_ops {
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void (*rpc_call_prepare)(struct rpc_task *, void *);
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void (*rpc_call_done)(struct rpc_task *, void *);
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void (*rpc_release)(void *);
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};
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#define RPC_TASK_ASYNC 0x0001
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#define RPC_TASK_SWAPPER 0x0002
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#define RPC_TASK_CHILD 0x0008
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#define RPC_CALL_MAJORSEEN 0x0020
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#define RPC_TASK_ROOTCREDS 0x0040
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#define RPC_TASK_DYNAMIC 0x0080
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#define RPC_TASK_KILLED 0x0100
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#define RPC_TASK_SOFT 0x0200
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#define RPC_TASK_NOINTR 0x0400
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#define RPC_IS_ASYNC(t) ((t)->tk_flags & RPC_TASK_ASYNC)
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#define RPC_IS_CHILD(t) ((t)->tk_flags & RPC_TASK_CHILD)
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#define RPC_IS_SWAPPER(t) ((t)->tk_flags & RPC_TASK_SWAPPER)
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#define RPC_DO_ROOTOVERRIDE(t) ((t)->tk_flags & RPC_TASK_ROOTCREDS)
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#define RPC_ASSASSINATED(t) ((t)->tk_flags & RPC_TASK_KILLED)
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#define RPC_DO_CALLBACK(t) ((t)->tk_callback != NULL)
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#define RPC_IS_SOFT(t) ((t)->tk_flags & RPC_TASK_SOFT)
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#define RPC_TASK_UNINTERRUPTIBLE(t) ((t)->tk_flags & RPC_TASK_NOINTR)
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#define RPC_TASK_RUNNING 0
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#define RPC_TASK_QUEUED 1
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#define RPC_TASK_WAKEUP 2
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#define RPC_TASK_HAS_TIMER 3
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#define RPC_TASK_ACTIVE 4
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#define RPC_IS_RUNNING(t) (test_bit(RPC_TASK_RUNNING, &(t)->tk_runstate))
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#define rpc_set_running(t) (set_bit(RPC_TASK_RUNNING, &(t)->tk_runstate))
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#define rpc_test_and_set_running(t) (test_and_set_bit(RPC_TASK_RUNNING, &(t)->tk_runstate))
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#define rpc_clear_running(t) do { smp_mb__before_clear_bit(); clear_bit(RPC_TASK_RUNNING, &(t)->tk_runstate); smp_mb__after_clear_bit(); } while (0)
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#define RPC_IS_QUEUED(t) (test_bit(RPC_TASK_QUEUED, &(t)->tk_runstate))
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#define rpc_set_queued(t) (set_bit(RPC_TASK_QUEUED, &(t)->tk_runstate))
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#define rpc_clear_queued(t) do { smp_mb__before_clear_bit(); clear_bit(RPC_TASK_QUEUED, &(t)->tk_runstate); smp_mb__after_clear_bit(); } while (0)
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#define rpc_start_wakeup(t) (test_and_set_bit(RPC_TASK_WAKEUP, &(t)->tk_runstate) == 0)
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#define rpc_finish_wakeup(t) do { smp_mb__before_clear_bit(); clear_bit(RPC_TASK_WAKEUP, &(t)->tk_runstate); smp_mb__after_clear_bit(); } while (0)
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#define RPC_IS_ACTIVATED(t) (test_bit(RPC_TASK_ACTIVE, &(t)->tk_runstate))
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#define rpc_set_active(t) (set_bit(RPC_TASK_ACTIVE, &(t)->tk_runstate))
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#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)
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#define RPC_PRIORITY_LOW 0
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#define RPC_PRIORITY_NORMAL 1
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#define RPC_PRIORITY_HIGH 2
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#define RPC_NR_PRIORITY (RPC_PRIORITY_HIGH+1)
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struct rpc_wait_queue {
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spinlock_t lock;
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struct list_head tasks[RPC_NR_PRIORITY];
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unsigned long cookie;
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unsigned char maxpriority;
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unsigned char priority;
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unsigned char count;
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unsigned char nr;
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unsigned short qlen;
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#ifdef RPC_DEBUG
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const char * name;
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#endif
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};
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#define RPC_BATCH_COUNT 16
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#ifndef RPC_DEBUG
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#define RPC_WAITQ_INIT(var,qname) { .lock = SPIN_LOCK_UNLOCKED, .tasks = { [0] = LIST_HEAD_INIT(var.tasks[0]), [1] = LIST_HEAD_INIT(var.tasks[1]), [2] = LIST_HEAD_INIT(var.tasks[2]), }, }
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#else
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#define RPC_WAITQ_INIT(var,qname) { .lock = SPIN_LOCK_UNLOCKED, .tasks = { [0] = LIST_HEAD_INIT(var.tasks[0]), [1] = LIST_HEAD_INIT(var.tasks[1]), [2] = LIST_HEAD_INIT(var.tasks[2]), }, .name = qname, }
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#endif
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#define RPC_WAITQ(var,qname) struct rpc_wait_queue var = RPC_WAITQ_INIT(var,qname)
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#define RPC_IS_PRIORITY(q) ((q)->maxpriority > 0)
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struct rpc_task *rpc_new_task(struct rpc_clnt *, int flags,
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const struct rpc_call_ops *ops, void *data);
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struct rpc_task *rpc_run_task(struct rpc_clnt *clnt, int flags,
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const struct rpc_call_ops *ops, void *data);
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struct rpc_task *rpc_new_child(struct rpc_clnt *, struct rpc_task *parent);
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struct rpc_task *rpc_wake_up_next(struct rpc_wait_queue *);
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#ifdef RPC_DEBUG
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#endif
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#ifdef RPC_DEBUG
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#endif
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#endif
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