[Sheepdog] [PATCH 0/6] fix race in epoch update

[FUJITA Tomonori]

On Thu,  6 May 2010 04:08:31 +0900
FUJITA Tomonori <fujita.tomonori at lab.ntt.co.jp> wrote:

> collie can't do I/Os (from qemu or collie) during updating epoch.
> 
> This patchset (against the next) is the preparation of fixing this
> race (untested).

The 4th and 6th patches leads to deadlock since collie could send an
I/O request to itself for a vdi request.

I've just sent the v2 of the patchset.