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由 Chris Wilson 提交于
In order to accommodate objects that are not backed by struct pages, but instead point into a contiguous region of stolen space, we need to make various changes to avoid dereferencing obj->pages or obj->base.filp. First introduce a marker for the stolen object, that specifies its offset into the stolen region and implies that it has no backing pages. Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk> Reviewed-by: NBen Widawsky <ben@bwidawsk.net> Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
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