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 wait_queue_head_t waitq;
32 #define RPC_PIPE_WAIT_FOR_OPEN 1
34 struct delayed_work queue_timeout;
35 const struct rpc_pipe_ops *ops;
40 struct inode vfs_inode;
42 struct rpc_pipe *pipe;
45 static inline struct rpc_inode *
46 RPC_I(struct inode *inode)
48 return container_of(inode, struct rpc_inode, vfs_inode);
51 extern int rpc_pipefs_notifier_register(struct notifier_block *);
52 extern void rpc_pipefs_notifier_unregister(struct notifier_block *);
59 extern struct dentry *rpc_d_lookup_sb(const struct super_block *sb,
60 const unsigned char *dir_name);
61 extern void rpc_pipefs_init_net(struct net *net);
62 extern struct super_block *rpc_get_sb_net(const struct net *net);
63 extern void rpc_put_sb_net(const struct net *net);
65 extern ssize_t rpc_pipe_generic_upcall(struct file *, struct rpc_pipe_msg *,
66 char __user *, size_t);
67 extern int rpc_queue_upcall(struct rpc_pipe *, struct rpc_pipe_msg *);
70 extern struct dentry *rpc_create_client_dir(struct dentry *, struct qstr *, struct rpc_clnt *);
71 extern int rpc_remove_client_dir(struct dentry *);
74 extern struct dentry *rpc_create_cache_dir(struct dentry *,
77 struct cache_detail *);
78 extern void rpc_remove_cache_dir(struct dentry *);
80 extern struct dentry *rpc_mkpipe(struct dentry *, const char *, void *,
81 const struct rpc_pipe_ops *, int flags);
82 extern int rpc_unlink(struct dentry *);
83 extern struct vfsmount *rpc_get_mount(void);
84 extern void rpc_put_mount(void);
85 extern int register_rpc_pipefs(void);
86 extern void unregister_rpc_pipefs(void);