On Mon, Jan 9, 2012 at 4:10 AM, InKi Dae <daeinki@xxxxxxxxx> wrote: > note : in case of sharing a buffer between v4l2 and drm driver, the > memory info would be copied vb2_xx_buf to xx_gem or xx_gem to > vb2_xx_buf through sg table. in this case, only memory info is used to > share, not some objects. which v4l2/vb2 patches are you looking at? The patches I was using, vb2 holds a reference to the 'struct dma_buf *' internally, not just keeping the sg_table BR, -R -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>