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[POWERPC] spufs: simplify state_mutex
authorChristoph Hellwig <hch@lst.de>
Tue, 13 Feb 2007 20:36:50 +0000 (21:36 +0100)
committerArnd Bergmann <arnd@klappe.arndb.de>
Tue, 13 Feb 2007 20:52:37 +0000 (21:52 +0100)
The r/w semaphore to lock the spus was overkill and can be replaced
with a mutex to make it faster, simpler and easier to debug.  It also
helps to allow making most spufs interruptible in future patches.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>

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