projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _LINUX_SUNRPC_RPC_PIPE_FS_H |
| 2 | #define _LINUX_SUNRPC_RPC_PIPE_FS_H | |
| 3 | ||
| 4 | #ifdef __KERNEL__ | |
| 5 | ||
| 4dceef96 BF |
6 | #include <linux/workqueue.h> |
| 7 | ||
| 1da177e4 LT |
8 | struct rpc_pipe_msg { |
| 9 | struct list_head list; | |
| 10 | void *data; | |
| 11 | size_t len; | |
| 12 | size_t copied; | |
| 13 | int errno; | |
| 14 | }; | |
| 15 | ||
| 16 | struct rpc_pipe_ops { | |
| 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 *); | |
| c3810608 | 20 | int (*open_pipe)(struct inode *); |
| 1da177e4 LT |
21 | void (*destroy_msg)(struct rpc_pipe_msg *); |
| 22 | }; | |
| 23 | ||
| 24 | struct rpc_inode { | |
| 25 | struct inode vfs_inode; | |
| 26 | void *private; | |
| 27 | struct list_head pipe; | |
| 28 | struct list_head in_upcall; | |
| 6e84c7b6 | 29 | struct list_head in_downcall; |
| 1da177e4 LT |
30 | int pipelen; |
| 31 | int nreaders; | |
| 32 | int nwriters; | |
| 03a1256f | 33 | int nkern_readwriters; |
| 1da177e4 LT |
34 | wait_queue_head_t waitq; |
| 35 | #define RPC_PIPE_WAIT_FOR_OPEN 1 | |
| 36 | int flags; | |
| 52bad64d | 37 | struct delayed_work queue_timeout; |
| b693ba4a | 38 | const struct rpc_pipe_ops *ops; |
| 1da177e4 LT |
39 | }; |
| 40 | ||
| 41 | static inline struct rpc_inode * | |
| 42 | RPC_I(struct inode *inode) | |
| 43 | { | |
| 44 | return container_of(inode, struct rpc_inode, vfs_inode); | |
| 45 | } | |
| 46 | ||
| 47 | extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *); | |
| 48 | ||
| 458adb8b | 49 | struct rpc_clnt; |
| 23ac6581 | 50 | extern struct dentry *rpc_create_client_dir(struct dentry *, struct qstr *, struct rpc_clnt *); |
| 458adb8b | 51 | extern int rpc_remove_client_dir(struct dentry *); |
| 8854e82d TM |
52 | |
| 53 | struct cache_detail; | |
| 54 | extern struct dentry *rpc_create_cache_dir(struct dentry *, | |
| 55 | struct qstr *, | |
| 56 | mode_t umode, | |
| 57 | struct cache_detail *); | |
| 58 | extern void rpc_remove_cache_dir(struct dentry *); | |
| 59 | ||
| b693ba4a TM |
60 | extern struct dentry *rpc_mkpipe(struct dentry *, const char *, void *, |
| 61 | const struct rpc_pipe_ops *, int flags); | |
| 5d67476f | 62 | extern int rpc_unlink(struct dentry *); |
| 54281548 TM |
63 | extern struct vfsmount *rpc_get_mount(void); |
| 64 | extern void rpc_put_mount(void); | |
| 7531d692 TM |
65 | extern int register_rpc_pipefs(void); |
| 66 | extern void unregister_rpc_pipefs(void); | |
| 1da177e4 LT |
67 | |
| 68 | #endif | |
| 69 | #endif |