Re: [PATCH v5 1/9] sysctl: Add flags to support min/max range clamping

From: Luis R. Rodriguez
Date: Thu Mar 29 2018 - 14:15:24 EST


On Mon, Mar 19, 2018 at 11:39:19AM -0400, Waiman Long wrote:
> On 03/16/2018 09:10 PM, Luis R. Rodriguez wrote:
> > On Fri, Mar 16, 2018 at 02:13:42PM -0400, Waiman Long wrote:
> >> When the CTL_FLAGS_CLAMP_RANGE flag is set in the ctl_table
> >> entry, any update from the userspace will be clamped to the given
> >> range without error if either the proc_dointvec_minmax() or the
> >> proc_douintvec_minmax() handlers is used.
> > I don't get it. Why define a generic range flag when we can be mores specific and
> > you do that in your next patch. What's the point of this flag then?
> >
> > Luis
>
> I was thinking about using the signed/unsigned bits as just annotations
> for ranges for future extension. For the purpose of this patchset alone,
> I can merge the three bits into just two.

Only introduce flags which you will actually use in the same patch series.

Luis