Attilio Rao 875e0aa40d MFC r207329, r208716: ...

- Extract the IODEV_PIO interface from ia64 and make it MI.
- On i386 and amd64 the old behaviour is kept but multithreaded
  processes must use the new interface in order to work well.
- Support for the other architectures is greatly improved.

Sponsored by:	Sandvine Incorporated

Approved by:	re (kib, bz)

2010-06-01 21:19:58 +00:00

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iodev.c

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iodev.h

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