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[media] media: vb2: support userptr for PFN mappings
authorJavier Martin <javier.martin@vista-silicon.com>
Thu, 16 Feb 2012 15:19:08 +0000 (12:19 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Thu, 8 Mar 2012 10:42:17 +0000 (07:42 -0300)
Some video devices need to use contiguous memory which is
not backed by pages as it happens with vmalloc. This patch
provides USERPTR handling for those devices.

Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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