linux-kernel - RT-Kernel boot stalls because of change in fs/dcache.c

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Date:   Mon, 17 Dec 2018 10:42:07 +0000
From:   Schrempf Frieder <frieder.schrempf@...tron.de>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     "linux-rt-users@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RT-Kernel boot stalls because of change in fs/dcache.c

Hi,

I have tried to boot a 4.14-Kernel with the RT-patches and 
PREEMPT_RT_FULL on an i.MX6UL board. Unfortunately the boot stalls at 
some point and never finishes.

I did some bisecting and found out, that reverting this change: [1], 
makes the board boot correctly.

Can anyone help to come up with a proper fix for this?

Thanks,
Frieder

[1]: 
https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git/commit/?h=v4.14-rt&id=56684d21f7f8341f7a5ed1433714112f49294590