From: Christoph Hellwig <hch@lst.de>
Date: Mon, 4 Jun 2007 13:26:51 +0000 (+1000)
Subject: [POWERPC] spufs: Synchronize pte invalidation vs ps close
X-Git-Tag: v2.6.22-rc5~102^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=47d3a5faa3f72186f769ed9579c630afb8433f2b;p=pandora-kernel.git

[POWERPC] spufs: Synchronize pte invalidation vs ps close

Make sure the mapping_lock also protects access to the various address_space
pointers used for tearing down the ptes on a spu context switch.

Because unmap_mapping_range can sleep we need to turn mapping_lock from
a spinlock into a sleeping mutex.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---

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