linux-kernel - Re: [PATCH v2 2/5] timer_migration: Improve tracing

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Message-ID: <ZnnZAB0l8oGxZ0X8@pavilion.home>
Date: Mon, 24 Jun 2024 22:37:20 +0200
From: Frederic Weisbecker <frederic@...nel.org>
To: Anna-Maria Behnsen <anna-maria@...utronix.de>
Cc: Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/5] timer_migration: Improve tracing

Le Mon, Jun 24, 2024 at 04:53:54PM +0200, Anna-Maria Behnsen a écrit :
> Trace points of inactive and active propagation are located at the end of
> the related functions. The interesting information of those trace points is
> the updated group state. When trace points are not located directly at the
> place where group state changed, order of trace points in traces could be
> confusing.
> 
> Move inactive and active propagation trace points directly after update of
> group state values.
> 
> This change is also a preparation to be able to split out update of group
> state information easily into a separate function. Which in turn is
> required to fix a possible race in setup code.
> 
> Fixes: 7ee988770326 ("timers: Implement the hierarchical pull model")
> Signed-off-by: Anna-Maria Behnsen <anna-maria@...utronix.de>

Reviewed-by: Frederic Weisbecker <frederic@...nel.org>