• Junio C Hamano's avatar
    Merge branch 'kg/packed-ref-cache-fix' · 9db22910
    Junio C Hamano authored
    Avoid mmapping small files while using packed refs (especially ones
    with zero size, which would cause later munmap() to fail).
    
    * kg/packed-ref-cache-fix:
      packed_ref_cache: don't use mmap() for small files
      load_contents(): don't try to mmap an empty file
      packed_ref_iterator_begin(): make optimization more general
      find_reference_location(): make function safe for empty snapshots
      create_snapshot(): use `xmemdupz()` rather than a strbuf
      struct snapshot: store `start` rather than `header_len`
    9db22910
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