linux-kernel - Re: [RFC patch 03/15] x86/entry: Use generic syscall entry function

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Message-ID: <CALCETrUhH9_ZGn=-FMKYvTswQ7g0deVJif2xUihsu5tpJg0xSA@mail.gmail.com>
Date:   Fri, 20 Sep 2019 16:41:03 -0700
From:   Andy Lutomirski <luto@...nel.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>, X86 ML <x86@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Andy Lutomirski <luto@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Marc Zyngier <maz@...nel.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        kvm list <kvm@...r.kernel.org>,
        linux-arch <linux-arch@...r.kernel.org>
Subject: Re: [RFC patch 03/15] x86/entry: Use generic syscall entry function

On Thu, Sep 19, 2019 at 8:09 AM Thomas Gleixner <tglx@...utronix.de> wrote:
>
> Replace the syscall entry work handling with the generic version, Provide
> the necessary helper inlines to handle the real architecture specific
> parts, e.g. audit and seccomp invocations.

> -       if (work & (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU)) {
> -               ret = tracehook_report_syscall_entry(regs);
> -               if (ret || (work & _TIF_SYSCALL_EMU))
> -                       return -1L;
> -       }

Unless I missed something, you lost the _TIF_SYSCALL_EMU abomination.