X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Fext4fs.h;h=34585d407d06d9aa861ace1144af627163b77554;hb=b4ee6daad7a2604ca9466b2ba48de86cc27d381f;hp=13d2c5603bddc0c2bb7dc30aea41240e14e5fccd;hpb=7edb17670cdca0ee5de8b8eb61753ad6b7fc33e6;p=platform%2Fkernel%2Fu-boot.git

diff --git a/include/ext4fs.h b/include/ext4fs.h
index 13d2c56..34585d4 100644
--- a/include/ext4fs.h
+++ b/include/ext4fs.h
@@ -28,9 +28,11 @@
 #define __EXT4__
 #include <ext_common.h>
 
+#define EXT4_INDEX_FL		0x00001000 /* Inode uses hash tree index */
 #define EXT4_EXTENTS_FL		0x00080000 /* Inode uses extents */
 #define EXT4_EXT_MAGIC			0xf30a
 #define EXT4_FEATURE_RO_COMPAT_GDT_CSUM	0x0010
+#define EXT4_FEATURE_RO_COMPAT_METADATA_CSUM 0x0400
 #define EXT4_FEATURE_INCOMPAT_EXTENTS	0x0040
 #define EXT4_FEATURE_INCOMPAT_64BIT	0x0080
 #define EXT4_INDIRECT_BLOCKS		12
@@ -86,6 +88,8 @@ struct ext_filesystem {
 	uint32_t inodesz;
 	/* Sectors per Block */
 	uint32_t sect_perblk;
+	/* Group Descriptor size */
+	uint16_t gdsize;
 	/* Group Descriptor Block Number */
 	uint32_t gdtable_blkno;
 	/* Total block groups of partition */
@@ -95,7 +99,6 @@ struct ext_filesystem {
 	/* Superblock */
 	struct ext2_sblock *sb;
 	/* Block group descritpor table */
-	struct ext2_block_group *bgd;
 	char *gdtable;
 
 	/* Block Bitmap Related */
@@ -114,6 +117,12 @@ struct ext_filesystem {
 	struct blk_desc *dev_desc;
 };
 
+struct ext_block_cache {
+	char *buf;
+	lbaint_t block;
+	int size;
+};
+
 extern struct ext2_data *ext4fs_root;
 extern struct ext2fs_node *ext4fs_file;
 
@@ -124,16 +133,17 @@ extern int gindex;
 
 int ext4fs_init(void);
 void ext4fs_deinit(void);
-int ext4fs_filename_check(char *filename);
-int ext4fs_write(const char *fname, unsigned char *buffer,
-		 unsigned long sizebytes);
+int ext4fs_filename_unlink(char *filename);
+int ext4fs_write(const char *fname, const char *buffer,
+				 unsigned long sizebytes, int type);
 int ext4_write_file(const char *filename, void *buf, loff_t offset, loff_t len,
 		    loff_t *actwrite);
+int ext4fs_create_link(const char *target, const char *fname);
 #endif
 
 struct ext_filesystem *get_fs(void);
 int ext4fs_open(const char *filename, loff_t *len);
-int ext4fs_read(char *buf, loff_t len, loff_t *actread);
+int ext4fs_read(char *buf, loff_t offset, loff_t len, loff_t *actread);
 int ext4fs_mount(unsigned part_length);
 void ext4fs_close(void);
 void ext4fs_reinit_global(void);
@@ -143,11 +153,15 @@ int ext4fs_size(const char *filename, loff_t *size);
 void ext4fs_free_node(struct ext2fs_node *node, struct ext2fs_node *currroot);
 int ext4fs_devread(lbaint_t sector, int byte_offset, int byte_len, char *buf);
 void ext4fs_set_blk_dev(struct blk_desc *rbdd, disk_partition_t *info);
-long int read_allocated_block(struct ext2_inode *inode, int fileblock);
+long int read_allocated_block(struct ext2_inode *inode, int fileblock,
+			      struct ext_block_cache *cache);
 int ext4fs_probe(struct blk_desc *fs_dev_desc,
 		 disk_partition_t *fs_partition);
 int ext4_read_file(const char *filename, void *buf, loff_t offset, loff_t len,
 		   loff_t *actread);
 int ext4_read_superblock(char *buffer);
 int ext4fs_uuid(char *uuid_str);
+void ext_cache_init(struct ext_block_cache *cache);
+void ext_cache_fini(struct ext_block_cache *cache);
+int ext_cache_read(struct ext_block_cache *cache, lbaint_t block, int size);
 #endif