vcache_8h_source.html

#ifndef _FS_VCACHE_H

#define _FS_VCACHE_H


#include <fs/vfs.h>

#include <ds/hashmap.h>


struct vcache {

    struct hashmap *hashmap;

};


/* Sets up a cache; adds, removes and finds a vnode. */

void vcache_init(struct vcache *vcache);

int vcache_insert(struct vcache *vcache, struct vnode *vnode);

int vcache_remove(struct vcache *vcache, struct vnode *vnode);

struct vnode *vcache_find(struct vcache *vcache, ino_t ino);


MALLOC_DECLARE(M_VCACHE);


#endif  /* ! _FS_VCACHE_H */

hashmap.h

MALLOC_DECLARE
#define MALLOC_DECLARE(type)
Definition kvmem.h:29

vcache
A filesystem's vnode cache (fs/vcache.c): its vnodes in memory, by their inode number,...
Definition vcache.h:10

vcache::hashmap
struct hashmap * hashmap
Definition vcache.h:11

vnode
A file in memory (a vnode): what its inode says, and the kernel's own state.
Definition vfs.h:113

vnode::ino
ino_t ino
Definition vfs.h:114

ino_t
uintptr_t ino_t
Definition types.h:23

vcache_init
void vcache_init(struct vcache *vcache)
Sets up an empty vnode cache.
Definition vcache.c:25

vcache_find
struct vnode * vcache_find(struct vcache *vcache, ino_t ino)
Finds the cached vnode of an inode.
Definition vcache.c:80

vcache_insert
int vcache_insert(struct vcache *vcache, struct vnode *vnode)
Adds a vnode to a cache.
Definition vcache.c:37

vcache_remove
int vcache_remove(struct vcache *vcache, struct vnode *vnode)
Takes a vnode out of a cache.
Definition vcache.c:56

vfs.h