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Re: comparing file contents in is_exact_match?

From
Alex Riesen <raa.lkml@gmail.com>
Date
Jul 18, 2006, 18:49 UTC
Message-ID
<81b0412b0607181149k74165724pa0a513d14704ce73@mail.gmail.com>
In-Reply-To
<Pine.LNX.4.64.0607180837260.3386@evo.osdl.org>
On 7/18/06, Linus Torvalds <torvalds@osdl.org> wrote:
> So I really think we should just basically always mmap the pack-files (it
> should work everywhere), and make NO_MMAP just trigger on the other cases.

And while we are at it make a mental note about avoiding platforms with broken mmap. For instance, QNX6 mmap with MAP_PRIVATE _always_ makes a copy of the whole! file, the stupid thing (they even documented it so!). The alternative flag, MAP_SHARED, does not work on some filesystems at all.

Previous: Linus TorvaldsNext: Juergen Ruehle
Message 25 of 32 in “comparing file contents in is_exact_match?”
  1. Martin WaitzJul 6, 2006
  2. Junio C HamanoJul 6, 2006
  3. Martin WaitzJul 6, 2006
  4. Junio C HamanoJul 6, 2006
  5. Martin WaitzJul 6, 2006
  6. Martin WaitzJul 6, 2006
  7. Florian WeimerJul 7, 2006
  8. Johannes SchindelinJul 8, 2006
  9. Florian WeimerJul 16, 2006
  10. Johannes SchindelinJul 16, 2006
  11. Yakov LernerJul 16, 2006
  12. Alex RiesenJul 16, 2006
  13. Florian WeimerJul 17, 2006
  14. Johannes SchindelinJul 17, 2006
  15. Linus TorvaldsJul 17, 2006
  16. Johannes SchindelinJul 17, 2006
  17. Linus TorvaldsJul 17, 2006
  18. Martin WaitzJul 17, 2006
  19. Alex RiesenJul 17, 2006
  20. Geert BoschJul 17, 2006
  21. Linus TorvaldsJul 17, 2006
  22. Yakov LernerJul 18, 2006
  23. Johannes SchindelinJul 18, 2006
  24. Linus TorvaldsJul 18, 2006
  25. Alex RiesenJul 18, 2006
  26. Juergen RuehleJul 17, 2006
  27. Johannes SchindelinJul 17, 2006
  28. Juergen RuehleJul 17, 2006
  29. Yakov LernerJul 17, 2006
  30. Juergen RuehleJul 17, 2006
  31. Yakov LernerJul 18, 2006
  32. Yakov LernerJul 17, 2006

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