ext4: fix ext4_init_block_bitmap() for metablock block group

[linux-beck.git] / fs / ext4 / balloc.c

diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 6dcbec9b256233b6fb28f7f40ae3079170f0d20e..1327ac3a04de15fcfc92a0acaaf1d810b4524b58 100644 (file)
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -121,12 +121,7 @@ unsigned ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh,
                                le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks);
                }
        } else { /* For META_BG_BLOCK_GROUPS */
-               int group_rel = (block_group -
-                                le32_to_cpu(sbi->s_es->s_first_meta_bg)) %
-                               EXT4_DESC_PER_BLOCK(sb);
-               if (group_rel == 0 || group_rel == 1 ||
-                   (group_rel == EXT4_DESC_PER_BLOCK(sb) - 1))
-                       bit_max += 1;
+               bit_max += ext4_bg_num_gdb(sb, block_group);
        }
 
        if (block_group == sbi->s_groups_count - 1) {