* Ingo Molnar (mingo@xxxxxxxxxx) wrote:
>
> * Andrea Arcangeli <aarcange@xxxxxxxxxx> 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 <xemul@xxxxxxxxxxxxx>
> > Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx>
> > ---
> > 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?
I hope so:
a) It's generic enough that there's interest in using it in
a range of projects - there's nothing QEMU specific in it.
b) It's worked very well on the QEMU code that I wrote that uses it
for postcopy, and has been solid doing that for many months now.
c) I'm not aware of any suggestions for a different, generic solution
to solve the same set of problems.
d) It's got a good self test, that's survived heavy testing.
e) I think Andrea has addressed all previous comments on it.
Dave
>
> Thanks,
>
> Ingo
--
Dr. David Alan Gilbert / dgilbert@xxxxxxxxxx / Manchester, UK
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