path: root/fs/ext4/ext4_common.h
diff options
authorUma Shankar <>2012-05-25 21:22:49 +0530
committerWolfgang Denk <>2012-08-09 23:48:02 +0200
commited34f34dbaf206dfe223f4bc2147d600fe1b0f58 (patch)
tree5a0f1c40bb6598e0db9d2e1b0d1b85814348ad8b /fs/ext4/ext4_common.h
parenta1596438a68921d2c9b1fdec70a720d38c85ca7d (diff)
ext4fs write support
Signed-off-by: Uma Shankar <> Signed-off-by: Manjunatha C Achar <> Signed-off-by: Iqbal Shareef <> Signed-off-by: Hakgoo Lee <>
Diffstat (limited to 'fs/ext4/ext4_common.h')
1 files changed, 25 insertions, 0 deletions
diff --git a/fs/ext4/ext4_common.h b/fs/ext4/ext4_common.h
index 8e8bcbc0fa..801b8b848a 100644
--- a/fs/ext4/ext4_common.h
+++ b/fs/ext4/ext4_common.h
@@ -14,6 +14,8 @@
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+ * ext4write : Based on generic ext4 protocol.
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
@@ -35,6 +37,10 @@
#include <ext4fs.h>
#include <malloc.h>
#include <asm/errno.h>
+#if defined(CONFIG_CMD_EXT4_WRITE)
+#include "ext4_journal.h"
+#include "crc16.h"
#define YES 1
#define NO 0
@@ -60,4 +66,23 @@ int ext4fs_find_file(const char *path, struct ext2fs_node *rootnode,
struct ext2fs_node **foundnode, int expecttype);
int ext4fs_iterate_dir(struct ext2fs_node *dir, char *name,
struct ext2fs_node **fnode, int *ftype);
+#if defined(CONFIG_CMD_EXT4_WRITE)
+uint32_t ext4fs_div_roundup(uint32_t size, uint32_t n);
+int ext4fs_checksum_update(unsigned int i);
+int ext4fs_get_parent_inode_num(const char *dirname, char *dname, int flags);
+void ext4fs_update_parent_dentry(char *filename, int *p_ino, int file_type);
+long int ext4fs_get_new_blk_no(void);
+int ext4fs_get_new_inode_no(void);
+void ext4fs_reset_block_bmap(long int blockno, unsigned char *buffer,
+ int index);
+int ext4fs_set_block_bmap(long int blockno, unsigned char *buffer, int index);
+int ext4fs_set_inode_bmap(int inode_no, unsigned char *buffer, int index);
+void ext4fs_reset_inode_bmap(int inode_no, unsigned char *buffer, int index);
+int ext4fs_iget(int inode_no, struct ext2_inode *inode);
+void ext4fs_allocate_blocks(struct ext2_inode *file_inode,
+ unsigned int total_remaining_blocks,
+ unsigned int *total_no_of_block);
+void put_ext4(uint64_t off, void *buf, uint32_t size);