tree 01e33e214b40d34ee6051d1381ba87521caa5d82
parent 89df00855beabfa700f9a9ed52f0983bdc4b021d
author Christoph Hellwig <hch@lst.de> 1180963611 +1000
committer Paul Mackerras <paulus@samba.org> 1181180679 +1000

[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>