initrd.c File Reference

#include "initrd.h"
#include "hal/cpu/paging.h"
#include "init/init.h"
#include "libk/oct2bin.h"
#include <spinlock.h>
#include <vector.h>
#include "type.h"
#include "vfs/cache.h"
#include "vfs/dentry.h"
#include "vfs/enum.h"
#include "vfs/filesystem.h"
#include <vfs/vfs.h>
#include <vfs/vnode.h>
#include <libk/fs/tar.h>
#include <libk/serial.h>
#include <str.h>
#include <memory/kalloc.h>
#include <memory/memory_utils.h>
#include <memory/phys_base_allocator.h>
#include <memory/slab.h>
#include <memory/vm_manager.h>
#include <autoconf.h>

Go to the source code of this file.

Data Structures
struct	initrd_internal_data
struct	initrd_internal_vnode_data

Functions
static void	LoadIntoVfs (dentry_ptr dentry)
filesystem_t *	initrd_fs_impl ()
	INIT (initrd)
static int	initrd_read (vnode_t *vnode, void *buf, size_t len, size_t offset)
	__attribute__ ((used, visibility("default"), section(".export")))
	This function handles memory allocation for a new dentry using the slab allocator.

Variables
struct slab_cache *	initrd_internal_vnode_data_cache = 0
static struct initrd_internal_data	__initrd_data

Function Documentation

__attribute__()

__attribute__

(

(used, visibility("default"), section(".export"))

)

This function handles memory allocation for a new dentry using the slab allocator.

It also links the dentry to its corresponding VNode (if provided).

Note

This function performs lazy initialization of the dentry slab cache if it does not exist yet.

Parameters

name	The name of the file or directory.
vnode	Pointer to the associated VNode (inode data). Pass NULL if the VNode is not yet available.

Returns

dentry_ptr A pointer to the newly allocated and initialized dentry.

Definition at line 99 of file initrd.c.

References __initrd_data, base, kstring::c_str, create_and_attach_vnode(), CREATE_MISSING_ENTRY, data, header, initrd_read(), kalloc(), KERNEL_API, LOG2_INFO, LOG_DEBUG, LOG_ERROR, LOG_WARN, memcopy(), dentry::name, NULL, offset, vnode::ops, vnode::permission, print_dentry_tree(), vops_file_t::read, resolve_dentry(), size, vnode::size, strncmp(), vnode::type, VFS_OK, dentry::vnode, vnode::vnode_private, VNODE_TYPE_DIR, and VNODE_TYPE_FILE.

INIT()

INIT

(

initrd

)

Definition at line 46 of file initrd.c.

References __initrd_data, BLOCK_SIZE, kstring::c_str, create_and_attach_vnode(), LoadIntoVfs(), LOG_DEBUG, LOG_INFO, dentry::name, offset, paging_get_highest_page_map(), paging_reload(), vnode::permission, initrd_module::size, initrd_module::start, VIRT2PHYS, dentry::vnode, VNODE_TYPE_DIR, vxMultipleMmap(), and vxnamei().

initrd_fs_impl()

filesystem_t * initrd_fs_impl

(

)

initrd_read()

static int initrd_read ( vnode_t * vnode, void * buf, size_t len, size_t offset )

static

Definition at line 88 of file initrd.c.

References __initrd_data, addr, data, len, memcopy(), offset, and vnode::vnode_private.

Referenced by __attribute__().

LoadIntoVfs()

static void LoadIntoVfs ( dentry_ptr dentry )

static

Referenced by INIT().

Variable Documentation

__initrd_data

struct initrd_internal_data __initrd_data

static

Definition at line 41 of file initrd.c.

Referenced by __attribute__(), INIT(), and initrd_read().

initrd_internal_vnode_data_cache

struct slab_cache* initrd_internal_vnode_data_cache = 0

Definition at line 38 of file initrd.c.