linux-kernel - Re: [PATCH v2 5/5] powerpc: kprobes: emulate instructions on kprobe handler re-entry

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Message-Id: <20170413055330.GD30806@naverao1-tp.localdomain>
Date:   Thu, 13 Apr 2017 11:23:30 +0530
From:   "Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     Michael Ellerman <mpe@...erman.id.au>,
        Ananth N Mavinakayanahalli <ananth@...ux.vnet.ibm.com>,
        Ingo Molnar <mingo@...nel.org>, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 5/5] powerpc: kprobes: emulate instructions on kprobe
 handler re-entry

On 2017/04/13 01:37PM, Masami Hiramatsu wrote:
> On Wed, 12 Apr 2017 16:28:28 +0530
> "Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com> wrote:
> 
> > On kprobe handler re-entry, try to emulate the instruction rather than
> > single stepping always.
> > 
> 
> > As a related change, remove the duplicate saving of msr as that is
> > already done in set_current_kprobe()
> 
> If so, this part might be separated as a cleanup patch...

Sure, thanks for the review!

- Naveen