[sheepdog] [sheepdog/sheepdog] 25328a: sheep: turn on O_DIRECT just for data objects

[Hitoshi Mitake]

  Branch: refs/heads/dio
  Home:   https://github.com/sheepdog/sheepdog
  Commit: 25328a72fb3c3c5fe91d67690b3546cdf0ea6a0f
      https://github.com/sheepdog/sheepdog/commit/25328a72fb3c3c5fe91d67690b3546cdf0ea6a0f
  Author: Hitoshi Mitake <mitake.hitoshi at lab.ntt.co.jp>
  Date:   2016-06-29 (Wed, 29 Jun 2016)

  Changed paths:
    M sheep/store/common.c

  Log Message:
  -----------
  sheep: turn on O_DIRECT just for data objects

Signed-off-by: Hitoshi Mitake <mitake.hitoshi at lab.ntt.co.jp>