errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
ext2fs_generic_bitmap bm1,
ext2fs_generic_bitmap bm2)
{
blk64_t i;
if (!bm1 || !bm2)
return EINVAL;
if (bm1->magic != bm2->magic)
return EINVAL;
/* Now we know both bitmaps have the same magic */
if (EXT2FS_IS_32_BITMAP(bm1))
return ext2fs_compare_generic_bitmap(bm1->magic, neq, bm1, bm2);
if (!EXT2FS_IS_64_BITMAP(bm1))
return EINVAL;
if ((bm1->start != bm2->start) ||
(bm1->end != bm2->end))
return neq;
for (i = bm1->end - ((bm1->end - bm1->start) % 8); i <= bm1->end; i++)
if (ext2fs_test_generic_bmap(bm1, i) !=
ext2fs_test_generic_bmap(bm2, i))
return neq;
return 0;
}
int ext2fs_test_block_bitmap_range2(ext2fs_block_bitmap bmap,
blk64_t block, unsigned int num)
{
if (!bmap)
return EINVAL;
if (num == 1)
return !ext2fs_test_generic_bmap((ext2fs_generic_bitmap)
bmap, block);
if (EXT2FS_IS_32_BITMAP(bmap)) {
if ((block+num) & ~0xffffffffULL) {
ext2fs_warn_bitmap2((ext2fs_generic_bitmap) bmap,
EXT2FS_UNMARK_ERROR, 0xffffffff);
return EINVAL;
}
return ext2fs_test_block_bitmap_range(
(ext2fs_generic_bitmap) bmap, block, num);
}
if (!EXT2FS_IS_64_BITMAP(bmap))
return EINVAL;
return bmap->bitmap_ops->test_clear_bmap_extent(bmap, block, num);
}
int ext2fs_test_block_bitmap_range2(ext2fs_block_bitmap bmap,
blk64_t block, unsigned int num)
{
__u64 end = block + num;
if (!bmap)
return EINVAL;
if (num == 1)
return !ext2fs_test_generic_bmap((ext2fs_generic_bitmap)
bmap, block);
if (EXT2FS_IS_32_BITMAP(bmap)) {
if ((block+num-1) & ~0xffffffffULL) {
ext2fs_warn_bitmap2((ext2fs_generic_bitmap) bmap,
EXT2FS_UNMARK_ERROR, 0xffffffff);
return EINVAL;
}
return ext2fs_test_block_bitmap_range(
(ext2fs_generic_bitmap) bmap, block, num);
}
if (!EXT2FS_IS_64_BITMAP(bmap))
return EINVAL;
INC_STAT(bmap, test_ext_count);
/* convert to clusters if necessary */
block >>= bmap->cluster_bits;
end += (1 << bmap->cluster_bits) - 1;
end >>= bmap->cluster_bits;
num = end - block;
if ((block < bmap->start) || (block+num-1 > bmap->end)) {
ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_TEST, block,
bmap->description);
//change return value to none to 0, build error fix
return 0;
}
return bmap->bitmap_ops->test_clear_bmap_extent(bmap, block, num);
}
int ext2fs_test_generic_bitmap(ext2fs_generic_bitmap bitmap,
blk_t bitno)
{
if (!EXT2FS_IS_32_BITMAP(bitmap)) {
if (EXT2FS_IS_64_BITMAP(bitmap)) {
ext2fs_warn_bitmap32(bitmap, __func__);
return ext2fs_test_generic_bmap(bitmap, bitno);
}
#ifndef OMIT_COM_ERR
com_err(0, EXT2_ET_MAGIC_GENERIC_BITMAP,
"test_bitmap(%lu)", (unsigned long) bitno);
#endif
return 0;
}
if ((bitno < bitmap->start) || (bitno > bitmap->end)) {
ext2fs_warn_bitmap2(bitmap, EXT2FS_TEST_ERROR, bitno);
return 0;
}
return ext2fs_test_bit(bitno - bitmap->start, bitmap->bitmap);
}
