Btrfs: add an assert to btrfs_lookup_csums_range for alignment
I was hitting weird issues when trying to remove hole extents and it turned out it was because I was sending non-aligned offsets down to btrfs_lookup_csums_range. So add an assert for this in case somebody trips over this in the future. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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@ -329,6 +329,9 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
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u64 csum_end;
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u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy);
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ASSERT(start == ALIGN(start, root->sectorsize) &&
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(end + 1) == ALIGN(end + 1, root->sectorsize));
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path = btrfs_alloc_path();
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if (!path)
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return -ENOMEM;
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