haiku/docs/develop/kernel/vm_store_vnode

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static void vnode_destroy(struct vm_store *store)
Frees memory associated with this store.
static off_t vnode_commit(struct vm_store *store, off_t size)
Sets committed size to size and returns it.
static int vnode_has_page(struct vm_store *store, off_t offset)
Returns 1.
static ssize_t vnode_read(struct vm_store *store, off_t offset, iovecs *vecs)
Calls vfs_readpage.
static ssize_t vnode_write(struct vm_store *store, off_t offset, iovecs *vecs)
calls vfs_writepage
static void vnode_acquire_ref(struct vm_store *store)
Calls vfs_vnode_aquire_ref
static void vnode_release_ref(struct vm_store *store)
Calls vfs_vnode_release_ref
vm_store *vm_store_create_vnode(void *vnode)
Creates space for a vm_store and a vnode_store_data. Sets data = vnode_store_data. Sets the vnode_store_data's vnode to vnode.