commit 494ef20db6ea2e2ab1c3a45a1461e6e717fdcf48
author Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Fri Jul 23 14:35:47 2010 -0400
committer Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Tue Jul 19 20:58:32 2011 -0400
tree 1ec8749b08e5042a57d08014ea9e0fea832e4ee8
parent 0513fe9e5b54e47e37217ea078dd870e3825e02d

xen/pciback: Fine-grain the spinlocks and fix BUG: scheduling while atomic cases.

We were using coarse spinlocks that could end up with a deadlock.
This patch fixes that and makes the spinlocks much more fine-grained.

We also drop be->watchding state spinlocks as they are already
guarded by the xenwatch_thread against multiple customers. Without
that we would trigger the BUG: scheduling while atomic.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>