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

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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>

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This commit is contained in:

Konrad Rzeszutek Wilk 2010-07-23 14:35:47 -04:00

parent 0513fe9e5b

commit 494ef20db6

2 changed files with 21 additions and 14 deletions

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9

drivers/xen/xen-pciback/passthrough.c

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26

drivers/xen/xen-pciback/xenbus.c

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