Re: [RFC] vivi, videobuf_to_vmalloc() and related breakage

On Monday 15 October 2007 12:01, Al Viro wrote: > AFAICS, videobuf-vmalloc use of mem->vma and mem->vmalloc is > bogus. > > You obtain the latter with vmalloc_user(); so far, so good. Then you have > retval=remap_vmalloc_range(vma, mem->vmalloc,0); > where vma is given to you by mmap

[RFC] vivi, videobuf_to_vmalloc() and related breakage

AFAICS, videobuf-vmalloc use of mem->vma and mem->vmalloc is bogus. You obtain the latter with vmalloc_user(); so far, so good. Then you have retval=remap_vmalloc_range(vma, mem->vmalloc,0); where vma is given to you by mmap(); again, fine - we get the memory pointed to be mem->vm