From 34754b69a6f87aa6aa2860525a82f12532f83afd Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Wed, 25 Feb 2009 16:04:03 +0100
Subject: x86: make vmap yell louder when it is used under irqs_disabled()

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 mm/vmalloc.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'mm/vmalloc.c')

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 4dd2636d0b92..f83a70167b99 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1257,6 +1257,7 @@ EXPORT_SYMBOL(vfree);
 void vunmap(const void *addr)
 {
 	BUG_ON(in_interrupt());
+	might_sleep();
 	__vunmap(addr, 0);
 }
 EXPORT_SYMBOL(vunmap);
@@ -1276,6 +1277,8 @@ void *vmap(struct page **pages, unsigned int count,
 {
 	struct vm_struct *area;
 
+	might_sleep();
+
 	if (count > num_physpages)
 		return NULL;
 
-- 
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