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Fix a sign bug causing invalid memory access in the ino_paths ioctl.
To see the problem, create many hardlinks to the same file (120 should do it), then look up paths by inode with: ls -i btrfs inspect inode-resolve -v $ino /mnt/btrfs I noticed the memory layout of the fspath->val data had some irregularities (some unnecessary gaps that stop appearing about halfway), so I'm not sure there aren't any bugs left in it.
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@ -1186,7 +1186,7 @@ static char *ref_to_path(struct btrfs_root *fs_root,
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int slot;
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u64 next_inum;
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int ret;
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s64 bytes_left = size - 1;
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s64 bytes_left = ((s64)size) - 1;
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struct extent_buffer *eb = eb_in;
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struct btrfs_key found_key;
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int leave_spinning = path->leave_spinning;
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