From:   Valentin Schneider <vschneid@redhat.com>
To:     Yury Norov <yury.norov@gmail.com>, linuxppc-dev@lists.ozlabs.org,
        linux-kernel@vger.kernel.org
Cc:     Yury Norov <yury.norov@gmail.com>, Arnd Bergmann <arnd@arndb.de>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Nicholas Piggin <npiggin@gmail.com>,
        Christophe Leroy <christophe.leroy@csgroup.eu>,
        Jeremy Kerr <jk@ozlabs.org>, Jakub Kicinski <kuba@kernel.org>,
        Dietmar Eggemann <dietmar.eggemann@arm.com>,
        Barry Song <baohua@kernel.org>
Subject: Re: [PATCH 1/2] sched/topology: introduce node_has_cpus() macro
In-Reply-To: <20230222025029.453834-1-yury.norov@gmail.com>
References: <20230222025029.453834-1-yury.norov@gmail.com>
Date:   Wed, 15 Mar 2023 16:48:12 +0000
Message-ID: <xhsmhbkkum04z.mognet@vschneid.remote.csb>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

On 21/02/23 18:50, Yury Norov wrote:
> Currently, to check if NUMA node has CPUs, one has to use the
> nr_cpus_node() macro, which ends up with cpumask_weight. We can do it
> better with cpumask_empty(), because the latter can potentially return
> earlier - as soon as 1st set bit found.
>
> This patch adds a node_has_cpus() macro to implement that.
>
> Signed-off-by: Yury Norov <yury.norov@gmail.com>

Reviewed-by: Valentin Schneider <vschneid@redhat.com>