Re: [PATCH v3 1/4] ptrace: move clearing of TIF_SYSCALL_EMU flag to core
From: Oleg Nesterov
Date: Thu May 02 2019 - 12:14:04 EST
On 05/01, Sudeep Holla wrote:
> On Wed, May 01, 2019 at 06:13:30PM +0200, Oleg Nesterov wrote:
> > On 04/30, Sudeep Holla wrote:
> > >
> > > While the TIF_SYSCALL_EMU is set in ptrace_resume independent of any
> > > architecture, currently only powerpc and x86 unset the TIF_SYSCALL_EMU
> > > flag in ptrace_disable which gets called from ptrace_detach.
> > >
> > > Let's move the clearing of TIF_SYSCALL_EMU flag to __ptrace_unlink
> > > which gets executed from ptrace_detach and also keep it along with
> > > or close to clearing of TIF_SYSCALL_TRACE.
> > >
> > > Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
> > > Cc: Paul Mackerras <paulus@xxxxxxxxx>
> > > Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
> > > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> > > Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> > > Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx>
> > Acked-by: Oleg Nesterov <oleg@xxxxxxxxxx>
> Since 1/4 and 2/4 are completely independent of arm64 changes in 3&4/4,
> I prefer you take these via your tree.
Sorry Sudeep, I can't do this, I need to reanimate my account on kernel.org.