# Re: \[PATCH\] userfaultfd: register syscall numbers for x86 32bit and x86-64 64bit

- From: Ingo Molnar \<hidden\>
- Date: 2015-07-31 08:31:39 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2015/07/4547364
- Thread: https://ratatoskr.run/linux-next/2015/07/4546830/t.md

```text

* Andrea Arcangeli [ref] wrote:

> This registers the official numbers of the userfaultfd syscall for x86
> 32bit and x86-64 64bit. This registration allows to ship kernels in
> production using these two syscall numbers for userfaultfd.
> 
> Acked-by: Pavel Emelyanov <redacted>
> Signed-off-by: Andrea Arcangeli <redacted>
> ---
>  arch/x86/entry/syscalls/syscall_32.tbl | 1 +
>  arch/x86/entry/syscalls/syscall_64.tbl | 1 +
>  include/linux/syscalls.h               | 1 +
>  kernel/sys_ni.c                        | 1 +
>  4 files changed, 4 insertions(+)

Hm, is there consensus on the upstream desirability of this sytem call?

Thanks,

	Ingo
```