[sheepdog] [sheepdog/sheepdog] 32ac09: sheep: dedicated queues for request paths related ...

[Hitoshi Mitake]

  Branch: refs/heads/peer-wq
  Home:   https://github.com/sheepdog/sheepdog
  Commit: 32ac09f6cb16812fdb4d563b7133a5d963bf3eb9
      https://github.com/sheepdog/sheepdog/commit/32ac09f6cb16812fdb4d563b7133a5d963bf3eb9
  Author: Hitoshi Mitake <mitake.hitoshi at lab.ntt.co.jp>
  Date:   2017-02-21 (Tue, 21 Feb 2017)

  Changed paths:
    M sheep/gateway.c
    M sheep/request.c
    M sheep/sheep.c
    M sheep/sheep_priv.h
    M sheep/store/common.c

  Log Message:
  -----------
  sheep: dedicated queues for request paths related to COW

Internally generated requests for reading/writing inodes and remove
requests during reference decrement must avoid cyclic dependencies of
workqueues.

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