Use COPYFILE_FICLONE to enable CoW behavior if file system supports it #37
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This reduces disk usage on COW file systems (btrfs for example) by in essence making a hardlink, that's upgraded to a copy in case you write to it.
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This reduces disk usage on COW file systems (btrfs for example) by in essence making a hardlink, that's upgraded to a copy in case you write to it.