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| author | Christopher James Halse Rogers <christopher.halse.rogers@canonical.com> | 2013-09-10 11:36:45 +0530 |
|---|---|---|
| committer | Sumit Semwal <sumit.semwal@linaro.org> | 2013-09-10 11:36:45 +0530 |
| commit | 19e8697ba45e7bcdb04f2adf6110fbf4882863e5 (patch) | |
| tree | 249547a50a16d33e2c3c2dea96a592b2b823dc2b /Documentation/vDSO/parse_vdso.c | |
| parent | 9022e24e8946400d53719a761815069c3183e2bd (diff) | |
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>
Diffstat (limited to 'Documentation/vDSO/parse_vdso.c')
0 files changed, 0 insertions, 0 deletions