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    SubjectRe: [Linaro-mm-sig] [RFC v2 1/2] dma-buf: Introduce dma buffer sharing mechanism
    On Wed, Dec 21, 2011 at 10:57 PM, Arnd Bergmann <arnd@arndb.de> wrote:
    > On Tuesday 20 December 2011, Daniel Vetter wrote:
    >> > I'm thinking for a first version, we can get enough mileage out of it by saying:
    >> > 1) only exporter can mmap to userspace
    >> > 2) only importers that do not need CPU access to buffer..

    Thanks Rob - and the exporter can do the mmap outside of dma-buf
    usage, right? I mean, we don't need to provide an mmap to dma_buf()
    and restrict it to exporter, when the exporter has more 'control' of
    the buffer anyways.
    >
    BR,
    ~Sumit.


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