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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef _LINUX_SUNRPC_RPC_PIPE_FS_H
2#define _LINUX_SUNRPC_RPC_PIPE_FS_H
3
4#ifdef __KERNEL__
5
6struct rpc_pipe_msg {
7 struct list_head list;
8 void *data;
9 size_t len;
10 size_t copied;
11 int errno;
12};
13
14struct rpc_pipe_ops {
15 ssize_t (*upcall)(struct file *, struct rpc_pipe_msg *, char __user *, size_t);
16 ssize_t (*downcall)(struct file *, const char __user *, size_t);
17 void (*release_pipe)(struct inode *);
18 int (*open_pipe)(struct inode *);
19 void (*destroy_msg)(struct rpc_pipe_msg *);
20};
21
22struct rpc_inode {
23 struct inode vfs_inode;
24 void *private;
25 struct list_head pipe;
26 struct list_head in_upcall;
27 struct list_head in_downcall;
28 int pipelen;
29 int nreaders;
30 int nwriters;
31 int nkern_readwriters;
32 wait_queue_head_t waitq;
33#define RPC_PIPE_WAIT_FOR_OPEN 1
34 int flags;
35 struct rpc_pipe_ops *ops;
36 struct delayed_work queue_timeout;
37};
38
39static inline struct rpc_inode *
40RPC_I(struct inode *inode)
41{
42 return container_of(inode, struct rpc_inode, vfs_inode);
43}
44
45extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *);
46
47extern struct dentry *rpc_mkdir(char *, struct rpc_clnt *);
48extern int rpc_rmdir(struct dentry *);
49extern struct dentry *rpc_mkpipe(struct dentry *, const char *, void *, struct rpc_pipe_ops *, int flags);
50extern int rpc_unlink(struct dentry *);
51extern struct vfsmount *rpc_get_mount(void);
52extern void rpc_put_mount(void);
53extern int register_rpc_pipefs(void);
54extern void unregister_rpc_pipefs(void);
55
56#endif
57#endif