x86: make vmap yell louder when it is used under irqs_disabled()

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 3 insertions, 0 deletions

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;