On Sun, Sep 04, 2022 at 07:38:30PM +0200, Manfred Spraul wrote:
> Hi,
>
> On 9/2/22 16:27, Greg Kroah-Hartman wrote:
> > On Fri, Sep 02, 2022 at 01:59:11PM +0000, Varsha Teratipally wrote:
> > > Hi all,
> > >
> > > Commit 20401d1058f3f841f35a594ac2fc1293710e55b9("ipc: replace costly
> > > bailout check in sysvipc_find_ipc()" fixes a high cve and optimizes the
> > > costly loop by adding a checkpoint, which I think might be a good
> > > candidate for the stable branches
> > What do you mean by "high cve"?
> >
> > And that feels like it's an artificial benchmark fixup, what real
> > workload benefits from this change?
>
> Standard ipcs end up parsing /proc/sysvipc/*, thus there are real users
> where the performance of /proc/sysvsem/* matters.
What real users are that? What workload needs that becides monitoring
tools?
>
> But:
>
> The performance of the function was bad since 2007, i.e. why is is now
> urgent? I do not see a bug that must be fixed.
Me either.
thanks,
greg k-h
