Re: [patch] Assigning syscall numbers for testing

Benjamin LaHaise
2001-12-22T23:26:26Z

On Sun, Dec 23, 2001 at 10:18:26AM +1100, Keith Owens wrote:
> You did not read my mail all the way through, did you? I said -
>
> If the [user space] code cannot open /proc/dynamic_syscalls or cannot
> find the desired syscall name, fall back to the assigned syscall number
> (if any) or fail if there is no assigned syscall number. By falling
> back to the assigned syscall number, new versions of the user space
> code are backwards compatible, on older kernels it will use the dynamic
> syscall number, on newer kernels it will use the assigned number.

No, that's not the case I'm talking about: what happens when a vendor
starts shipping this patch and Linus decides to add a new syscall that
uses a syscall number that the old kernel used for dynamic syscalls?

-ben
--
Fish.