linux-kernel - Re: [PATCH 5.10 08/25] perf: Rework perf_event_exit

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Message-ID: <Yf5QhydMcw5IcJj9@kroah.com>
Date:   Sat, 5 Feb 2022 11:25:11 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Pavel Machek <pavel@...x.de>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Marco Elver <elver@...gle.com>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>
Subject: Re: [PATCH 5.10 08/25] perf: Rework perf_event_exit_event()

On Fri, Feb 04, 2022 at 11:12:49AM +0100, Pavel Machek wrote:
> On Fri 2022-02-04 10:40:45, Greg Kroah-Hartman wrote:
> > On Fri, Feb 04, 2022 at 10:37:35AM +0100, Pavel Machek wrote:
> > > Hi!
> > > 
> > > > From: Peter Zijlstra <peterz@...radead.org>
> > > > 
> > > > commit ef54c1a476aef7eef26fe13ea10dc090952c00f8 upstream.
> > > > 
> > > > Make perf_event_exit_event() more robust, such that we can use it from
> > > > other contexts. Specifically the up and coming remove_on_exec.
> > > 
> > > Do we need this in 5.10? AFAICT the remove_on_exec work is not queued
> > > for 5.10, and this patch is buggy and needs following one to fix it
> > > up.
> > 
> > It's needed by the following patch, which says 5.10 is affected.
> 
> 9/25 says this patch broke 5.10: Fixes: ef54c1a476ae ("perf: Rework
> perf_event_exit_event()"). 8/25 is not claiming to fix anything.
> 
> Simply drop 8/25 and 9/25, and 5.10 is okay...

Ah, yeah, the patch this was to fix was added and then reverted which
confused things.  I'll go drop both of these now, thanks.

greg k-h