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-rw-r--r--fs/ext2/balloc.c73
1 files changed, 0 insertions, 73 deletions
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index 6591abef64d0..bb6908066494 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -624,76 +624,3 @@ unsigned long ext2_bg_num_gdb(struct super_block *sb, int group)
624 return EXT2_SB(sb)->s_gdb_count; 624 return EXT2_SB(sb)->s_gdb_count;
625} 625}
626 626
627#ifdef CONFIG_EXT2_CHECK
628/* Called at mount-time, super-block is locked */
629void ext2_check_blocks_bitmap (struct super_block * sb)
630{
631 struct buffer_head *bitmap_bh = NULL;
632 struct ext2_super_block * es;
633 unsigned long desc_count, bitmap_count, x, j;
634 unsigned long desc_blocks;
635 struct ext2_group_desc * desc;
636 int i;
637
638 es = EXT2_SB(sb)->s_es;
639 desc_count = 0;
640 bitmap_count = 0;
641 desc = NULL;
642 for (i = 0; i < EXT2_SB(sb)->s_groups_count; i++) {
643 desc = ext2_get_group_desc (sb, i, NULL);
644 if (!desc)
645 continue;
646 desc_count += le16_to_cpu(desc->bg_free_blocks_count);
647 brelse(bitmap_bh);
648 bitmap_bh = read_block_bitmap(sb, i);
649 if (!bitmap_bh)
650 continue;
651
652 if (ext2_bg_has_super(sb, i) &&
653 !ext2_test_bit(0, bitmap_bh->b_data))
654 ext2_error(sb, __FUNCTION__,
655 "Superblock in group %d is marked free", i);
656
657 desc_blocks = ext2_bg_num_gdb(sb, i);
658 for (j = 0; j < desc_blocks; j++)
659 if (!ext2_test_bit(j + 1, bitmap_bh->b_data))
660 ext2_error(sb, __FUNCTION__,
661 "Descriptor block #%ld in group "
662 "%d is marked free", j, i);
663
664 if (!block_in_use(le32_to_cpu(desc->bg_block_bitmap),
665 sb, bitmap_bh->b_data))
666 ext2_error(sb, "ext2_check_blocks_bitmap",
667 "Block bitmap for group %d is marked free",
668 i);
669
670 if (!block_in_use(le32_to_cpu(desc->bg_inode_bitmap),
671 sb, bitmap_bh->b_data))
672 ext2_error(sb, "ext2_check_blocks_bitmap",
673 "Inode bitmap for group %d is marked free",
674 i);
675
676 for (j = 0; j < EXT2_SB(sb)->s_itb_per_group; j++)
677 if (!block_in_use(le32_to_cpu(desc->bg_inode_table) + j,
678 sb, bitmap_bh->b_data))
679 ext2_error (sb, "ext2_check_blocks_bitmap",
680 "Block #%ld of the inode table in "
681 "group %d is marked free", j, i);
682
683 x = ext2_count_free(bitmap_bh, sb->s_blocksize);
684 if (le16_to_cpu(desc->bg_free_blocks_count) != x)
685 ext2_error (sb, "ext2_check_blocks_bitmap",
686 "Wrong free blocks count for group %d, "
687 "stored = %d, counted = %lu", i,
688 le16_to_cpu(desc->bg_free_blocks_count), x);
689 bitmap_count += x;
690 }
691 if (le32_to_cpu(es->s_free_blocks_count) != bitmap_count)
692 ext2_error (sb, "ext2_check_blocks_bitmap",
693 "Wrong free blocks count in super block, "
694 "stored = %lu, counted = %lu",
695 (unsigned long)le32_to_cpu(es->s_free_blocks_count),
696 bitmap_count);
697 brelse(bitmap_bh);
698}
699#endif