On 04.07.2011, at 13:37, Avi Kivity wrote: > On 07/04/2011 02:36 PM, Alexander Graf wrote: >> > >> > What intermediate steps? We can't add fields to the structure before we >> > get the extensibility infrastructure, but that's all. >> >> If we add it now without extensibility code, we will have a kernel that only >> knows the ioctl with the size as it is now. If we later add another field, >> the ioctl size changes which would render new user space running on that >> particular kernel to fail, because it doesn't have the "just truncate the >> ioctl param to the size" logic yet. > > You're right. So let's add the padding now, and only use the great new stuff > after it's actually in. > > Working ugly is better than broken pretty.
Hrm. Too bad :). Alex _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
