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From:   Thomas Gleixner <tglx@linutronix.de>
To:     Peter Zijlstra <peterz@infradead.org>, axboe@kernel.dk
Cc:     linux-kernel@vger.kernel.org, peterz@infradead.org,
        mingo@redhat.com, dvhart@infradead.org, dave@stgolabs.net,
        andrealmeid@igalia.com, Andrew Morton <akpm@linux-foundation.org>,
        urezki@gmail.com, hch@infradead.org, lstoakes@gmail.com,
        Arnd Bergmann <arnd@arndb.de>, linux-api@vger.kernel.org,
        linux-mm@kvack.org, linux-arch@vger.kernel.org,
        malteskarupke@web.de
Subject: Re: [PATCH  v2 13/14] futex: Enable FUTEX2_{8,16}
In-Reply-To: <20230807123323.641470179@infradead.org>
References: <20230807121843.710612856@infradead.org>
 <20230807123323.641470179@infradead.org>
Date:   Mon, 07 Aug 2023 23:15:23 +0200
Message-ID: <87a5v2tuz8.ffs@tglx>
MIME-Version: 1.0
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On Mon, Aug 07 2023 at 14:18, Peter Zijlstra wrote:
>  
>  	/*
> +	 * Encode the futex size in the offset. This makes cross-size
> +	 * wake-wait fail -- see futex_match().
> +	 *
> +	 * NOTE that cross-size wake-wait is fundamentally broken wrt
> +	 * FLAGS_NUMA but could possibly work for !NUMA.

Don't give people ideas :)

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>