vfs_node.c File Reference

Various operations on VFS nodes have their home in this file. More...

#include "vfs.h"
#include <stdlib.h>
#include <str.h>
#include <fibril_synch.h>
#include <adt/hash_table.h>
#include <assert.h>
#include <async.h>
#include <errno.h>

Go to the source code of this file.

Data Structures
struct	refcnt_data
Defines
#define	KEY_DEV_HANDLE   1
#define	KEY_FS_HANDLE   0
#define	KEY_INDEX   2
#define	NODES_BUCKETS   (1 << NODES_BUCKETS_LOG)
#define	NODES_BUCKETS_LOG   8
Functions
static void	_vfs_node_addref (vfs_node_t *node)
	FIBRIL_MUTEX_INITIALIZE (nodes_mutex)
	Mutex protecting the VFS node hash table.
static int	nodes_compare (unsigned long key[], hash_count_t keys, link_t *item)
static hash_index_t	nodes_hash (unsigned long key[])
static void	nodes_remove_callback (link_t *item)
static void	refcnt_visitor (link_t *item, void *arg)
void	vfs_node_addref (vfs_node_t *node)
	Increment reference count of a VFS node.
void	vfs_node_delref (vfs_node_t *node)
	Decrement reference count of a VFS node.
void	vfs_node_forget (vfs_node_t *node)
	Forget node.
vfs_node_t *	vfs_node_get (vfs_lookup_res_t *result)
	Find VFS node.
void	vfs_node_put (vfs_node_t *node)
	Return VFS node when no longer needed by the caller.
bool	vfs_nodes_init (void)
	Initialize the VFS node hash table.
unsigned	vfs_nodes_refcount_sum_get (fs_handle_t, devmap_handle_t)
Variables
hash_table_t	nodes
	VFS node hash table containing all active, in-memory VFS nodes.
hash_table_operations_t	nodes_ops
	VFS node hash table operations.

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Detailed Description

Various operations on VFS nodes have their home in this file.

Definition in file vfs_node.c.

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