Re: [PATCH] perf/core: track the perf mlock gift separately

From: Peter Zijlstra

Date: Thu Oct 15 2026 - 06:42:34 EST


On Thu, Oct 15, 2026 at 11:27:59AM +0200, Thorsten Leemhuis wrote:
> On 10/15/26 11:09, Lorenzo Stoakes (ARM) wrote:
> > On Thu, Oct 15, 2026 at 09:58:17AM +0200, Peter Zijlstra wrote:
> >> On Sat, Oct 03, 2026 at 05:29:07PM +0100, Lorenzo Stoakes (ARM) wrote:
> >
> >>> Resolve the issue by simply giving perf its own field separate from the
> >>> rest.
> >> So I'm a little confused by all this -- perf introduced this field,
> >> others jumped on and shit broke, so we fix perf instead of the others?
> > Yeah I think the blame really lies with the later users, and that send a trend
> > that led to further confusion (including myself, mea culpa!)
> >
> >> Anyway, patch seems straight forward enough; and you added comment to
> >> the fields, which I suppose does clarify things some.
> >> I'll take it. Thanks!
> > Thanks, much appreciated! :)
> Just wondering: how urgent is this fix? Is this something we should try
> to get into 7.3 given that this was noticed in a regression report that
> blamed it on an 7.3-rc commit[1]? That commit also made it to many
> stable series now, which might be another reason to get in mainlined
> rather sooner than later.

I have it lined up for tip/perf/urgent. I'll try and push it out later
today. For now it lives in queue.git/perf/urgent.