mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 03:15:26 +07:00
72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
#ifndef _LINUX_SUNRPC_RPC_PIPE_FS_H
|
|
#define _LINUX_SUNRPC_RPC_PIPE_FS_H
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/workqueue.h>
|
|
|
|
struct rpc_pipe_msg {
|
|
struct list_head list;
|
|
void *data;
|
|
size_t len;
|
|
size_t copied;
|
|
int errno;
|
|
};
|
|
|
|
struct rpc_pipe_ops {
|
|
ssize_t (*upcall)(struct file *, struct rpc_pipe_msg *, char __user *, size_t);
|
|
ssize_t (*downcall)(struct file *, const char __user *, size_t);
|
|
void (*release_pipe)(struct inode *);
|
|
int (*open_pipe)(struct inode *);
|
|
void (*destroy_msg)(struct rpc_pipe_msg *);
|
|
};
|
|
|
|
struct rpc_inode {
|
|
struct inode vfs_inode;
|
|
void *private;
|
|
struct list_head pipe;
|
|
struct list_head in_upcall;
|
|
struct list_head in_downcall;
|
|
int pipelen;
|
|
int nreaders;
|
|
int nwriters;
|
|
int nkern_readwriters;
|
|
wait_queue_head_t waitq;
|
|
#define RPC_PIPE_WAIT_FOR_OPEN 1
|
|
int flags;
|
|
struct delayed_work queue_timeout;
|
|
const struct rpc_pipe_ops *ops;
|
|
};
|
|
|
|
static inline struct rpc_inode *
|
|
RPC_I(struct inode *inode)
|
|
{
|
|
return container_of(inode, struct rpc_inode, vfs_inode);
|
|
}
|
|
|
|
extern ssize_t rpc_pipe_generic_upcall(struct file *, struct rpc_pipe_msg *,
|
|
char __user *, size_t);
|
|
extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *);
|
|
|
|
struct rpc_clnt;
|
|
extern struct dentry *rpc_create_client_dir(struct dentry *, struct qstr *, struct rpc_clnt *);
|
|
extern int rpc_remove_client_dir(struct dentry *);
|
|
|
|
struct cache_detail;
|
|
extern struct dentry *rpc_create_cache_dir(struct dentry *,
|
|
struct qstr *,
|
|
umode_t umode,
|
|
struct cache_detail *);
|
|
extern void rpc_remove_cache_dir(struct dentry *);
|
|
|
|
extern struct dentry *rpc_mkpipe(struct dentry *, const char *, void *,
|
|
const struct rpc_pipe_ops *, int flags);
|
|
extern int rpc_unlink(struct dentry *);
|
|
extern struct vfsmount *rpc_get_mount(void);
|
|
extern void rpc_put_mount(void);
|
|
extern int register_rpc_pipefs(void);
|
|
extern void unregister_rpc_pipefs(void);
|
|
|
|
#endif
|
|
#endif
|