[sheepdog] [PATCH 0/2] fix I/O blocking problem during object recovery

[MORITA Kazutaka]

This patchset fixes the problem reported in the sheepdog-user list.
  http://lists.wpkg.org/pipermail/sheepdog-users/2012-July/000200.html

When there are many stale objects and those sha1 objects are not in
the farm backend store, sheep blocks I/Os long time.  On my
environment, when there are 50 GB data to be moved to the farm
backend, sheep blocks I/Os 15 minitues (not seconds).

It is because sheep do the work in farm_end_recover(), but the
function is called in the main thread.  This patchset moves the
function to the worker thread, and fix relevant problems.


MORITA Kazutaka (2):
  farm: call farm_end_recover in worker thread
  farm: recover object from omap when trunk is not found

 sheep/farm/farm.c  |   15 +++++++++++++++
 sheep/farm/farm.h  |    1 +
 sheep/farm/trunk.c |   39 +++++++++++++++++++++++++++++++++++++--
 sheep/recovery.c   |   28 +++++++++++++++++++++++-----
 4 files changed, 76 insertions(+), 7 deletions(-)

-- 
1.7.2.5