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futex: Fix PREEMPT_RT build

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Mike reported that rcuwait went walk-about and is causing failures on
the PREEMPT_RT builds, restore it.

Reported-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
This commit is contained in:
Peter Zijlstra 2021-10-15 12:05:59 +02:00
parent dd0aa2cd2e
commit 4d38167330
1 changed files with 4 additions and 0 deletions
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4
kernel/futex/futex.h
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@ -5,6 +5,10 @@
#include <linux/futex.h>
#include <linux/sched/wake_q.h>
#ifdef CONFIG_PREEMPT_RT
#include <linux/rcuwait.h>
#endif
#include <asm/futex.h>
/*