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SubjectRe: [RFC/INCOMPLETE 08/13] x86/entry/64: Migrate 64-bit syscalls to new exit hooks

* Ingo Molnar <mingo@kernel.org> wrote:

>
> * Andy Lutomirski <luto@kernel.org> wrote:
>
> > This is separate for ease of bisection.
> >
> > Signed-off-by: Andy Lutomirski <luto@kernel.org>
> > ---
> > arch/x86/entry/entry_64.S | 68 +++++------------------------------------------
> > 1 file changed, 7 insertions(+), 61 deletions(-)
> >
> > diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
> > index 33acc3dcc281..a5044d7a9d43 100644
> > --- a/arch/x86/entry/entry_64.S
> > +++ b/arch/x86/entry/entry_64.S
> > @@ -229,6 +229,11 @@ entry_SYSCALL_64_fastpath:
> > */
> > USERGS_SYSRET64
> >
> > +GLOBAL(int_ret_from_sys_call_irqs_off)
> > + TRACE_IRQS_ON
> > + ENABLE_INTERRUPTS(CLBR_NONE)
> > + jmp int_ret_from_sys_call
>
> Any reason why irq state tracking cannot be done in C as well, like the rest of
> the irq state tracking code?

Never mind, I see you've done exactly that in patch #12.

Thanks,

Ingo


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