EXT4_BLOCK_SIZE
#define EXT4_ADDR_PER_BLOCK(s) (EXT4_BLOCK_SIZE(s) / sizeof(__u32))
#define EXT4_CLUSTER_SIZE(s) (EXT4_BLOCK_SIZE(s) << \
# define EXT4_DESC_PER_BLOCK(s) (EXT4_BLOCK_SIZE(s) / EXT4_DESC_SIZE(s))
grp_ctx->bitmap_bh.b_data = kzalloc(EXT4_BLOCK_SIZE(sb), GFP_KERNEL);
int blocksize = EXT4_BLOCK_SIZE(dir->i_sb);
int blocksize = EXT4_BLOCK_SIZE(inode->i_sb);
t = EXT4_DIRENT_TAIL(bh->b_data, EXT4_BLOCK_SIZE(inode->i_sb));
int blocksize = EXT4_BLOCK_SIZE(inode->i_sb);
EXT4_BLOCK_SIZE(inode->i_sb) - sizeof(struct dx_tail)) {
EXT4_BLOCK_SIZE(inode->i_sb) - sizeof(struct dx_tail)) {
EXT4_BLOCK_SIZE(inode->i_sb) - offset);