linux/sunrpc/sched.h

1 /* SPDX-License-Identifier: GPL-2.0 */
5  * Scheduling primitives for kernel Sun RPC.
22  * This is the actual RPC procedure call info.
46 				to_increment;		/* if !exponential */
52  * This is the RPC task struct
69 	struct rpc_wait_queue 	*tk_waitqueue;	/* RPC wait queue we're on */
72 		struct rpc_wait		tk_wait;	/* RPC wait */
76 	 * RPC call state
78 	struct rpc_message	tk_msg;		/* RPC call info */
82 	struct rpc_clnt *	tk_client;	/* RPC client */
86 	struct rpc_rqst *	tk_rqstp;	/* RPC request */
91 	ktime_t			tk_start;	/* RPC task init timestamp */
95 	int			tk_rpc_status;	/* Result of last RPC operation */
99 #if IS_ENABLED(CONFIG_SUNRPC_DEBUG) || IS_ENABLED(CONFIG_TRACEPOINTS)
130  * RPC task flags
134 #define RPC_TASK_MOVEABLE	0x0004		/* nfs4.1+ rpc tasks */
140 #define RPC_TASK_SOFTCONN	0x0400		/* Fail if can't connect */
143 #define RPC_TASK_NOCONNECT	0x2000		/* return ENOTCONN if not connected */
147 #define RPC_IS_ASYNC(t)		((t)->tk_flags & RPC_TASK_ASYNC)
148 #define RPC_IS_SWAPPER(t)	((t)->tk_flags & RPC_TASK_SWAPPER)
149 #define RPC_IS_SOFT(t)		((t)->tk_flags & (RPC_TASK_SOFT|RPC_TASK_TIMEOUT))
150 #define RPC_IS_SOFTCONN(t)	((t)->tk_flags & RPC_TASK_SOFTCONN)
151 #define RPC_WAS_SENT(t)		((t)->tk_flags & RPC_TASK_SENT)
152 #define RPC_IS_MOVEABLE(t)	((t)->tk_flags & RPC_TASK_MOVEABLE)
163 				test_and_set_bit(RPC_TASK_RUNNING, &(t)->tk_runstate)
164 #define rpc_clear_running(t)	clear_bit(RPC_TASK_RUNNING, &(t)->tk_runstate)
166 #define RPC_IS_QUEUED(t)	test_bit(RPC_TASK_QUEUED, &(t)->tk_runstate)
167 #define rpc_set_queued(t)	set_bit(RPC_TASK_QUEUED, &(t)->tk_runstate)
168 #define rpc_clear_queued(t)	clear_bit(RPC_TASK_QUEUED, &(t)->tk_runstate)
170 #define RPC_IS_ACTIVATED(t)	test_bit(RPC_TASK_ACTIVE, &(t)->tk_runstate)
172 #define RPC_SIGNALLED(t)	test_bit(RPC_TASK_SIGNALLED, &(t)->tk_runstate)
176  * Note: if you change these, you must also change
179 #define RPC_PRIORITY_LOW	(-1)
183 #define RPC_NR_PRIORITY		(1 + RPC_PRIORITY_PRIVILEGED - RPC_PRIORITY_LOW)
192  * RPC synchronization objects
197 	unsigned char		maxpriority;		/* maximum priority (0 if queue is not a priority queue) */
202 #if IS_ENABLED(CONFIG_SUNRPC_DEBUG) || IS_ENABLED(CONFIG_TRACEPOINTS)
212 #define RPC_IS_PRIORITY(q)		((q)->maxpriority > 0)
273 #if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
284 #if IS_ENABLED(CONFIG_SUNRPC_DEBUG) || IS_ENABLED(CONFIG_TRACEPOINTS)
287 	return ((q && q->name) ? q->name : "unknown");  in rpc_qname()
293 	q->name = name;  in rpc_assign_waitqueue_name()
302 #if IS_ENABLED(CONFIG_SUNRPC_SWAP)
309 	return -EINVAL;  in rpc_clnt_swap_activate()