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authorChristopher James Halse Rogers <christopher.halse.rogers@canonical.com>2013-09-10 11:36:45 +0530
committerSumit Semwal <sumit.semwal@linaro.org>2013-09-10 11:36:45 +0530
commit19e8697ba45e7bcdb04f2adf6110fbf4882863e5 (patch)
tree249547a50a16d33e2c3c2dea96a592b2b823dc2b /usr
parent9022e24e8946400d53719a761815069c3183e2bd (diff)
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dma-buf: Expose buffer size to userspace (v2)
Each dma-buf has an associated size and it's reasonable for userspace to want to know what it is. Since userspace already has an fd, expose the size using the size = lseek(fd, SEEK_END, 0); lseek(fd, SEEK_CUR, 0); idiom. v2: Added Daniel's sugeested documentation, with minor fixups Signed-off-by: Christopher James Halse Rogers <christopher.halse.rogers@canonical.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Tested-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
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