libgluster: Fix counting, synctask state errors

When a synctask is executed in synctask_switchto, if by the time
it goes to check the woken/sleep part a reply already comes and
__wake is called, already running task is going to be put in runq
this generates a false warning "re-running already running task".

If the reply does not come before the woken/sleep check, then the
running task is put in waitq which decrements env->runcount even
when the task is not in runq, this leads to -ve runcount everytime
a task goes from runq->switchto->waitq.

This patch fixes both of them by introducing a new state for the
task called SYNCTASK_SUSPEND just when the task is suspended before
yeild in SYNCOP.

Change-Id: Ib82182cf950f9d85b5656f6243541489a104ca3d
BUG: 816551
Signed-off-by: Pranith Kumar K <pranithk@gluster.com>
Reviewed-on: http://review.gluster.com/3249
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vijay@gluster.com>

0 files changed, 0 insertions, 0 deletions