[media] v4l: videobuf2: add vmalloc allocator
Add an implementation of contiguous virtual memory allocator and handling routines for videobuf2, implemented on top of vmalloc()/vfree() calls. Signed-off-by: NPawel Osciak <p.osciak@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> CC: Pawel Osciak <pawel@osciak.com> Reviewed-by: NHans Verkuil <hverkuil@xs4all.nl> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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include/media/videobuf2-vmalloc.h
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