[PATCH] ext4: move block number hi bits
move '_hi' bits of block numbers in the larger part of the
block group descriptor structure
Signed-off-by: Alexandre Ratchov <alexandre.ratchov@bull.net>
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/linux/ext4_fs.h b/include/linux/ext4_fs.h
index a3df2af..296609b 100644
--- a/include/linux/ext4_fs.h
+++ b/include/linux/ext4_fs.h
@@ -129,10 +129,10 @@
__le16 bg_free_inodes_count; /* Free inodes count */
__le16 bg_used_dirs_count; /* Directories count */
__u16 bg_flags;
- __le16 bg_block_bitmap_hi; /* Blocks bitmap block MSB */
- __le16 bg_inode_bitmap_hi; /* Inodes bitmap block MSB */
- __le16 bg_inode_table_hi; /* Inodes table block MSB */
- __u16 bg_reserved[3];
+ __u32 bg_reserved[3];
+ __le32 bg_block_bitmap_hi; /* Blocks bitmap block MSB */
+ __le32 bg_inode_bitmap_hi; /* Inodes bitmap block MSB */
+ __le32 bg_inode_table_hi; /* Inodes table block MSB */
};
#ifdef __KERNEL__
@@ -143,6 +143,7 @@
* Macro-instructions used to manage group descriptors
*/
#define EXT4_MIN_DESC_SIZE 32
+#define EXT4_MIN_DESC_SIZE_64BIT 64
#define EXT4_MAX_DESC_SIZE EXT4_MIN_BLOCK_SIZE
#define EXT4_DESC_SIZE(s) (EXT4_SB(s)->s_desc_size)
#ifdef __KERNEL__
@@ -904,12 +905,18 @@
extern void ext4_warning (struct super_block *, const char *, const char *, ...)
__attribute__ ((format (printf, 3, 4)));
extern void ext4_update_dynamic_rev (struct super_block *sb);
-extern ext4_fsblk_t ext4_block_bitmap(struct ext4_group_desc *bg);
-extern ext4_fsblk_t ext4_inode_bitmap(struct ext4_group_desc *bg);
-extern ext4_fsblk_t ext4_inode_table(struct ext4_group_desc *bg);
-extern void ext4_block_bitmap_set(struct ext4_group_desc *bg, ext4_fsblk_t blk);
-extern void ext4_inode_bitmap_set(struct ext4_group_desc *bg, ext4_fsblk_t blk);
-extern void ext4_inode_table_set(struct ext4_group_desc *bg, ext4_fsblk_t blk);
+extern ext4_fsblk_t ext4_block_bitmap(struct super_block *sb,
+ struct ext4_group_desc *bg);
+extern ext4_fsblk_t ext4_inode_bitmap(struct super_block *sb,
+ struct ext4_group_desc *bg);
+extern ext4_fsblk_t ext4_inode_table(struct super_block *sb,
+ struct ext4_group_desc *bg);
+extern void ext4_block_bitmap_set(struct super_block *sb,
+ struct ext4_group_desc *bg, ext4_fsblk_t blk);
+extern void ext4_inode_bitmap_set(struct super_block *sb,
+ struct ext4_group_desc *bg, ext4_fsblk_t blk);
+extern void ext4_inode_table_set(struct super_block *sb,
+ struct ext4_group_desc *bg, ext4_fsblk_t blk);
static inline ext4_fsblk_t ext4_blocks_count(struct ext4_super_block *es)
{