linux-kernel - Re: [PATCH V2 1/4] posix-timers: Make next_posix_timer_id an atomic

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Message-ID: <87wmdlhwa8.ffs@tglx>
Date: Thu, 20 Feb 2025 09:09:51 +0100
From: Thomas Gleixner <tglx@...utronix.de>
To: Eric Dumazet <edumazet@...gle.com>, Anna-Maria Behnsen
 <anna-maria@...utronix.de>, Frederic Weisbecker <frederic@...nel.org>
Cc: linux-kernel <linux-kernel@...r.kernel.org>, Benjamin Segall
 <bsegall@...gle.com>, Eric Dumazet <eric.dumazet@...il.com>, Eric Dumazet
 <edumazet@...gle.com>
Subject: Re: [PATCH V2 1/4] posix-timers: Make next_posix_timer_id an atomic_t

On Wed, Feb 19 2025 at 12:55, Eric Dumazet wrote:
> Instead of relying on a global and shared hash_lock
> to protect sig->next_posix_timer_id, make it atomic.
>
> This allows the following patch to use RCU.

Your patch ordering is slightly off by two :)

And it fails to explain for what RCU can be used....

Thanks,

        tglx