[PATCHv2 4/9] v4l: vb2: add buffer exporting via dmabuf

This patch adds extension to videobuf2-core. It allow to export a mmap buffer as a file descriptor. Signed-off-by: Tomasz Stanislawski Signed-off-by: Kyungmin Park Acked-by: Laurent Pinchart --- drivers/media/video/videobuf2-core.c | 67 ++ include/media/video

[PATCHv2 4/9] v4l: vb2: add buffer exporting via dmabuf

This patch adds extension to videobuf2-core. It allow to export a mmap buffer as a file descriptor. Signed-off-by: Tomasz Stanislawski Signed-off-by: Kyungmin Park Acked-by: Laurent Pinchart --- drivers/media/video/videobuf2-core.c | 67 ++ include/media/video