Cleanup and performance improvement of the virtio_blk driver

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- Add support for GEOM direct completion. Depending on the benchmark,
    this tends to give a ~30% improvement w.r.t IOPs and BW.
  - Remove an invariants check in the strategy routine. This assertion
    is caught later on by an existing panic.
  - Rename and resort various related functions to make more sense.

MFC after:	1 month

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This commit is contained in:

Bryan Venteicher 2014-11-30 16:36:26 +00:00

parent 2cbcd3c198

commit abec64bc76

1 changed files with 451 additions and 446 deletions

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sys/dev/virtio/block/virtio_blk.c

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