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/*
* linux/include/linux/sunrpc/types.h
*
* Generic types and misc stuff for RPC.
*
* Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
*/
#ifndef _LINUX_SUNRPC_TYPES_H_
#define _LINUX_SUNRPC_TYPES_H_
#include <linux/timer.h>
#include <linux/tqueue.h>
#include <linux/sunrpc/debug.h>
/*
* These are the RPC list manipulation primitives used everywhere.
*/
struct rpc_listitem {
struct rpc_listitem * prev;
struct rpc_listitem * next;
};
static __inline__ void
__rpc_append_list(struct rpc_listitem **q, struct rpc_listitem *item)
{
struct rpc_listitem *next, *prev;
if (!(next = *q)) {
*q = item->next = item->prev = item;
} else {
prev = next->prev;
prev->next = item;
next->prev = item;
item->next = next;
item->prev = prev;
}
}
static __inline__ void
__rpc_insert_list(struct rpc_listitem **q, struct rpc_listitem *item)
{
__rpc_append_list(q, item);
*q = item;
}
static __inline__ void
__rpc_remove_list(struct rpc_listitem **q, struct rpc_listitem *item)
{
struct rpc_listitem *prev = item->prev,
*next = item->next;
if (item != prev) {
next->prev = prev;
prev->next = next;
} else {
next = NULL;
}
if (*q == item)
*q = next;
}
#define rpc_insert_list(q, i) \
__rpc_insert_list((struct rpc_listitem **) q, (struct rpc_listitem *) i)
#define rpc_append_list(q, i) \
__rpc_append_list((struct rpc_listitem **) q, (struct rpc_listitem *) i)
#define rpc_remove_list(q, i) \
__rpc_remove_list((struct rpc_listitem **) q, (struct rpc_listitem *) i)
/*
* Shorthands
*/
#define signalled() (signal_pending(current))
#endif /* _LINUX_SUNRPC_TYPES_H_ */
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