1 #ifndef _LINUX_SUNRPC_RPC_PIPE_FS_H
2 #define _LINUX_SUNRPC_RPC_PIPE_FS_H
6 #include <linux/workqueue.h>
17 ssize_t (*upcall)(struct file *, struct rpc_pipe_msg *, char __user *, size_t);
18 ssize_t (*downcall)(struct file *, const char __user *, size_t);
19 void (*release_pipe)(struct inode *);
20 int (*open_pipe)(struct inode *);
21 void (*destroy_msg)(struct rpc_pipe_msg *);
25 struct list_head pipe;
26 struct list_head in_upcall;
27 struct list_head in_downcall;
31 #define RPC_PIPE_WAIT_FOR_OPEN 1
33 struct delayed_work queue_timeout;
34 const struct rpc_pipe_ops *ops;
36 struct dentry *dentry;
40 struct inode vfs_inode;
42 struct rpc_pipe *pipe;
43 wait_queue_head_t waitq;
46 static inline struct rpc_inode *
47 RPC_I(struct inode *inode)
49 return container_of(inode, struct rpc_inode, vfs_inode);
53 SUNRPC_PIPEFS_NFS_PRIO,
54 SUNRPC_PIPEFS_RPC_PRIO,
57 extern int rpc_pipefs_notifier_register(struct notifier_block *);
58 extern void rpc_pipefs_notifier_unregister(struct notifier_block *);
65 extern struct dentry *rpc_d_lookup_sb(const struct super_block *sb,
66 const unsigned char *dir_name);
67 extern void rpc_pipefs_init_net(struct net *net);
68 extern struct super_block *rpc_get_sb_net(const struct net *net);
69 extern void rpc_put_sb_net(const struct net *net);
71 extern ssize_t rpc_pipe_generic_upcall(struct file *, struct rpc_pipe_msg *,
72 char __user *, size_t);
73 extern int rpc_queue_upcall(struct rpc_pipe *, struct rpc_pipe_msg *);
76 extern struct dentry *rpc_create_client_dir(struct dentry *, struct qstr *, struct rpc_clnt *);
77 extern int rpc_remove_client_dir(struct dentry *);
80 extern struct dentry *rpc_create_cache_dir(struct dentry *,
83 struct cache_detail *);
84 extern void rpc_remove_cache_dir(struct dentry *);
86 extern int rpc_rmdir(struct dentry *dentry);
88 struct rpc_pipe *rpc_mkpipe_data(const struct rpc_pipe_ops *ops, int flags);
89 void rpc_destroy_pipe_data(struct rpc_pipe *pipe);
90 extern struct dentry *rpc_mkpipe_dentry(struct dentry *, const char *, void *,
92 extern int rpc_unlink(struct dentry *);
93 extern int register_rpc_pipefs(void);
94 extern void unregister_rpc_pipefs(void);