[PATCH] x86, spinlock: Include threads.h

[Thomas Meyer]

NR_CPUS is used, but not included. Fix this.

Signed-off-by: Thomas Meyer <thomas@xxxxxxxx>
---

diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
index 54f1c80..db586f0 100644
--- a/arch/x86/include/asm/spinlock.h
+++ b/arch/x86/include/asm/spinlock.h
@@ -3,6 +3,7 @@
 
 #include <linux/jump_label.h>
 #include <linux/atomic.h>
+#include <linux/threads.h>
 #include <asm/page.h>
 #include <asm/processor.h>
 #include <linux/compiler.h>

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