Hi Sakari, On Wed, 2018-11-14 at 00:27 +0200, Sakari Ailus wrote: [...] > This lets the user to allocate lots of mmap'ed buffers that are pinned in > physical memory. This is already possible without this patch, by closing the fd instead of calling reqbufs(0). > Considering that we don't really have a proper mechanism > to limit that anyway, > > Acked-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> > > That said, the patch must be accompanied by the documentation change in > Documentation/media/uapi/v4l/vidioc-reqbufs.rst . Oh right, thanks. I'll add V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS to _v4l2-buf-capabilities in v2. regards Philipp