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Date:   Fri, 16 Mar 2018 12:58:59 +0100 (CET)
From:   Thomas Gleixner <tglx@linutronix.de>
To:     Dominik Brodowski <linux@dominikbrodowski.net>
cc:     linux-kernel@vger.kernel.org, torvalds@linux-foundation.org,
        viro@zeniv.linux.org.uk, luto@kernel.org, mingo@kernel.org,
        akpm@linux-foundation.org, arnd@arndb.de,
        Ingo Molnar <mingo@redhat.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Darren Hart <dvhart@infradead.org>
Subject: Re: [PATCH v2 03/36] mm: use do_futex() instead of sys_futex() in
 mm_release()
In-Reply-To: <20180315190529.20943-4-linux@dominikbrodowski.net>
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References: <20180315190529.20943-1-linux@dominikbrodowski.net> <20180315190529.20943-4-linux@dominikbrodowski.net>
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On Thu, 15 Mar 2018, Dominik Brodowski wrote:

> sys_futex() is a wrapper to do_futex() which does not modify any
> values here:
> 
> - uaddr, val and val3 are kept the same
> 
> - op is masked with FUTEX_CMD_MASK, but is always set to FUTEX_WAKE.
>   Therefore, val2 is always 0.
> 
> - as utime is set to NULL, *timeout is NULL
> 
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Darren Hart <dvhart@infradead.org>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

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