Re: [PATCH 2/4] proc/sysctl: add shared variables -1

[Kees Cook]

On Fri, May 15, 2020 at 05:06:28PM +0800, Xiaoming Ni wrote:
> On 2020/5/15 16:06, Kees Cook wrote:
> > On Fri, May 15, 2020 at 12:33:42PM +0800, Xiaoming Ni wrote:
> > > Add the shared variable SYSCTL_NEG_ONE to replace the variable neg_one
> > > used in both sysctl_writes_strict and hung_task_warnings.
> > > 
> > > Signed-off-by: Xiaoming Ni <nixiaoming@xxxxxxxxxx>
> > > ---
> > >   fs/proc/proc_sysctl.c     | 2 +-
> > >   include/linux/sysctl.h    | 1 +
> > >   kernel/hung_task_sysctl.c | 3 +--
> > >   kernel/sysctl.c           | 3 +--
> > 
> > How about doing this refactoring in advance of the extraction patch?
> Before  advance of the extraction patch, neg_one is only used in one file,
> does it seem to have no value for refactoring?

I guess it doesn't matter much, but I think it's easier to review in the
sense that neg_one is first extracted and then later everything else is
moved.

-- 
Kees Cook