From 107e7ba54f5dcd12b5ddbd6a41cf7a9f08b0ea4e Mon Sep 17 00:00:00 2001
From: Måns Rullgård <mru@inprovide.com>
Date: Sun, 7 Nov 2004 04:06:45 -0800
Subject: [PATCH] SysRq-n changes RT tasks to normal

Teach sysrq-N to switch all rt-policy tasks to SCHED_OTHER.  For recovering
from (and diagnosing) userspace bugs.

Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 include/linux/sched.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'include/linux')

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5d4ebb202ea6..0c8262c6d6b8 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1105,6 +1105,12 @@ static inline void arch_pick_mmap_layout(struct mm_struct *mm)
 extern long sched_setaffinity(pid_t pid, cpumask_t new_mask);
 extern long sched_getaffinity(pid_t pid, cpumask_t *mask);
 
+#ifdef CONFIG_MAGIC_SYSRQ
+
+extern void normalize_rt_tasks(void);
+
+#endif
+
 #endif /* __KERNEL__ */
 
 #endif
-- 
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