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Diffstat (limited to 'include/linux/sunrpc/rpc_pipe_fs.h')
-rw-r--r--include/linux/sunrpc/rpc_pipe_fs.h46
1 files changed, 36 insertions, 10 deletions
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index 2bb03d77375a..a7b422b33eda 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -21,21 +21,26 @@ struct rpc_pipe_ops {
void (*destroy_msg)(struct rpc_pipe_msg *);
};
-struct rpc_inode {
- struct inode vfs_inode;
- void *private;
+struct rpc_pipe {
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;
+ spinlock_t lock;
+ struct dentry *dentry;
+};
+
+struct rpc_inode {
+ struct inode vfs_inode;
+ void *private;
+ struct rpc_pipe *pipe;
+ wait_queue_head_t waitq;
};
static inline struct rpc_inode *
@@ -44,9 +49,28 @@ RPC_I(struct inode *inode)
return container_of(inode, struct rpc_inode, vfs_inode);
}
+enum {
+ SUNRPC_PIPEFS_NFS_PRIO,
+ SUNRPC_PIPEFS_RPC_PRIO,
+};
+
+extern int rpc_pipefs_notifier_register(struct notifier_block *);
+extern void rpc_pipefs_notifier_unregister(struct notifier_block *);
+
+enum {
+ RPC_PIPEFS_MOUNT,
+ RPC_PIPEFS_UMOUNT,
+};
+
+extern struct dentry *rpc_d_lookup_sb(const struct super_block *sb,
+ const unsigned char *dir_name);
+extern void rpc_pipefs_init_net(struct net *net);
+extern struct super_block *rpc_get_sb_net(const struct net *net);
+extern void rpc_put_sb_net(const struct net *net);
+
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 *);
+extern int rpc_queue_upcall(struct rpc_pipe *, struct rpc_pipe_msg *);
struct rpc_clnt;
extern struct dentry *rpc_create_client_dir(struct dentry *, struct qstr *, struct rpc_clnt *);
@@ -59,11 +83,13 @@ extern struct dentry *rpc_create_cache_dir(struct dentry *,
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_rmdir(struct dentry *dentry);
+
+struct rpc_pipe *rpc_mkpipe_data(const struct rpc_pipe_ops *ops, int flags);
+void rpc_destroy_pipe_data(struct rpc_pipe *pipe);
+extern struct dentry *rpc_mkpipe_dentry(struct dentry *, const char *, void *,
+ struct rpc_pipe *);
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);