Re: [PATCH RT] Align rt_mutex inlining with upstream behavior

From: Sebastian Andrzej Siewior
Date: Thu Jan 26 2017 - 12:01:27 EST


On 2017-01-24 18:45:50 [-0800], Alex Goins wrote:
> mutex_destroy is no-op inline when DEBUG_MUTEX is not enabled. The RT Linux
> patches replace mutex_destroy() with rt_mutex_destroy(). This patch aligns
> rt_mutex_destroy() with mutex_destroy() by using the same no-op inline
> technique.
>
> Signed-off-by: Alex Goins <agoins@xxxxxxxxxx>
> Reviewed-by: Andy Ritger <aritger@xxxxxxxxxx>

So what is the problem? Why are we doing this? There is still a check to
see if the lock is in use which is also done for the case where
DEBUG_MUTEX is disabled.

Sebastian