tjh.dev
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 void (*destroy_msg)(struct rpc_pipe_msg *);
19};
20
21struct rpc_inode {
22 struct inode vfs_inode;
23 void *private;
24 struct list_head pipe;
25 struct list_head in_upcall;
26 struct list_head in_downcall;
27 int pipelen;
28 int nreaders;
29 int nwriters;
30 int nkern_readwriters;
31 wait_queue_head_t waitq;
32#define RPC_PIPE_WAIT_FOR_OPEN 1
33 int flags;
34 struct rpc_pipe_ops *ops;
35 struct delayed_work queue_timeout;
36};
37
38static inline struct rpc_inode *
39RPC_I(struct inode *inode)
40{
41 return container_of(inode, struct rpc_inode, vfs_inode);
42}
43
44extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *);
45
46extern struct dentry *rpc_mkdir(char *, struct rpc_clnt *);
47extern int rpc_rmdir(struct dentry *);
48extern struct dentry *rpc_mkpipe(struct dentry *, const char *, void *, struct rpc_pipe_ops *, int flags);
49extern int rpc_unlink(struct dentry *);
50extern struct vfsmount *rpc_get_mount(void);
51extern void rpc_put_mount(void);
52extern int register_rpc_pipefs(void);
53extern void unregister_rpc_pipefs(void);
54
55#endif
56#endif