sparc/iommu: use __sbus_iommu_map_page to implement the map_sg path

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This means we handle > PAGE_SIZE offsets fine, and grow the size check
so far only performed in the map_page path.  We lose the optimization
to not double flush a page if it apears in multiple consecutive SG list
entries.  But at least for block I/O those don't happen anymore since
we properly merge in higher layers anyway.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Christoph Hellwig 2019-04-16 20:23:46 +02:00 • committed by David S. Miller

parent 7e996890b8

commit edb1f07203

1 changed files with 10 additions and 21 deletions

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arch/sparc/mm/iommu.c

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