linux-kernel - Re: [patch V5 19/26] posix-timers: Move sequence logic into struct k

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Message-ID: <ZyI4eYlhYXXIJff6@localhost.localdomain>
Date: Wed, 30 Oct 2024 14:45:29 +0100
From: Frederic Weisbecker <frederic@...nel.org>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: LKML <linux-kernel@...r.kernel.org>,
	Anna-Maria Behnsen <anna-maria@...utronix.de>,
	John Stultz <jstultz@...gle.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>, Stephen Boyd <sboyd@...nel.org>,
	Eric Biederman <ebiederm@...ssion.com>,
	Oleg Nesterov <oleg@...hat.com>
Subject: Re: [patch V5 19/26] posix-timers: Move sequence logic into struct
 k_itimer

Le Tue, Oct 01, 2024 at 10:42:26AM +0200, Thomas Gleixner a écrit :
> The posix timer signal handling uses siginfo::si_sys_private for handling
> the sequence counter check. That indirection is not longer required and the
> sequence count value at signal queueing time can be stored in struct
> k_itimer itself.
> 
> This removes the requirement of treating siginfo::si_sys_private special as
> it's now always zero as the kernel does not touch it anymore.
> 
> Suggested-by: Eric W. Biederman <ebiederm@...ssion.com>
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>

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