On Thu, 31 May 2007 13:56:55 +0100
David Laight <david@l8s.co.uk> wrote:

> On Thu, May 31, 2007 at 12:46:10PM +0100, Andrew Doran wrote:
> > > > 
> > > > Thanks for doing this. You probably need to bump the major
> > > > version of librt and send a note to current-users, since the
> > > > ABI has changed.
> > > 
> > > major bump will not help, as the structure in question is not a
> > > library interface, it's a kernel interface.  The only think
> > > library does - is passing the structure to the syscall.  Thus,
> > > syscall versioning is also required.
> > 
> > Ah, I forgot about that.
> 
> Is it worth adding a field to the interface structure to contain it's
> version ?
> 
How will you get it initialized properly, given that lots of existing
code simply bzeros such structures before use? 



		--Steve Bellovin, http://www.cs.columbia.edu/~smb