Changeset 3711e7e in mainline for uspace/lib/ext4/libext4_block_group.h

Timestamp:

2011-10-05T09:35:12Z (13 years ago)

Author:

Frantisek Princ <frantisek.princ@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

3712434

Parents:

cfa1a8a

Message:

Complete mounting skeleton (ported from ext2fs) - some filesystem checks during mount process still missing

File:

• uspace/lib/ext4/libext4_block_group.h (modified) (4 diffs)

uspace/lib/ext4/libext4_block_group.h

@@ -34 +34 @@
 #define LIBEXT4_LIBEXT4_BLOCK_GROUP_H_
 
+#include <libblock.h>
 #include <sys/types.h>
-
+#include "libext4_block_group.h"
 /*
  * Structure of a blocks group descriptor
@@ -42 +43 @@
         uint32_t block_bitmap_lo; // Blocks bitmap block
         uint32_t inode_bitmap_lo; // Inodes bitmap block
-        uint32_t inode_table_lo; // Inodes table block
+        uint32_t inode_table_first_lo; // Inodes table block
         uint16_t free_blocks_count_lo; // Free blocks count
         uint16_t free_inodes_count_lo; // Free inodes count
@@ -52 +53 @@
         uint32_t block_bitmap_hi; // Blocks bitmap block MSB
         uint32_t inode_bitmap_hi; // Inodes bitmap block MSB
-        uint32_t inode_table_hi; // Inodes table block MSB
+        uint32_t inode_table_first_hi; // Inodes table block MSB
         uint16_t free_blocks_count_hi; // Free blocks count MSB
         uint16_t free_inodes_count_hi; // Free inodes count MSB
@@ -58 +59 @@
         uint16_t itable_unused_hi;  // Unused inodes count MSB
         uint32_t reserved2[3]; // Padding
-} ext4_group_desc_t;
+} ext4_block_group_t;
+
+typedef struct ext4_block_group_ref {
+        block_t *block; // Reference to a block containing this block group descr
+        ext4_block_group_t *block_group;
+} ext4_block_group_ref_t;
+
+// TODO check value
+#define EXT4_BLOCK_GROUP_DESCRIPTOR_SIZE 32
+
+extern uint64_t ext4_block_group_get_inode_table_first_block(ext4_block_group_t *);
 
 #endif