Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
MIME-Version: 1.0
References: <20210225112245.607c70ec13cf8d279390e89e@kernel.org>
 <161469871251.49483.9142858308048988638.stgit@devnote2> <20210317235522.f327f2a8f43af2e27e5bccea@kernel.org>
 <YFIttoNvw1TTMR3a@hirez.programming.kicks-ass.net>
In-Reply-To: <YFIttoNvw1TTMR3a@hirez.programming.kicks-ass.net>
From:   Andy Lutomirski <luto@kernel.org>
Date:   Wed, 17 Mar 2021 10:45:08 -0700
Message-ID: <CALCETrW6=UTa6DmrPHcjkbpNTBNoTxkxn=kqX2FMnHWcmZYs=g@mail.gmail.com>
Subject: Re: [PATCH -tip 0/3] x86/kprobes: Remoev single-step trap from x86 kprobes
To:     Peter Zijlstra <peterz@infradead.org>
Cc:     Masami Hiramatsu <mhiramat@kernel.org>,
        Andy Lutomirski <luto@kernel.org>,
        Ingo Molnar <mingo@kernel.org>,
        Oleg Nesterov <oleg@redhat.com>,
        LKML <linux-kernel@vger.kernel.org>,
        Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>,
        "David S . Miller" <davem@davemloft.net>, X86 ML <x86@kernel.org>,
        Andrew Cooper <andrew.cooper3@citrix.com>,
        Steven Rostedt <rostedt@goodmis.org>
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

On Wed, Mar 17, 2021 at 9:27 AM Peter Zijlstra <peterz@infradead.org> wrote:
>
> On Wed, Mar 17, 2021 at 11:55:22PM +0900, Masami Hiramatsu wrote:
> > Hi Andy,
> >
> > Would you think you still need this series to remove iret to kernel?
>
> They're an improvement anyway, let me queue them so that they don't get
> lost.
>
> I'll line them up for tip/x86/core unless anybody else thinks of a
> better place for them and tells me in time ;-)

I agree.  The new code is quite nice.  I'm still not quite sure what
I'm doing with IRET, but thank you very much for the kprobe
improvements.