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-rw-r--r--kvm/kernel/external-module-compat.h5
-rw-r--r--kvm/kernel/include/asm/cmpxchg.h5
2 files changed, 9 insertions, 1 deletions
diff --git a/kvm/kernel/external-module-compat.h b/kvm/kernel/external-module-compat.h
index 66467c041..70a3c1e20 100644
--- a/kvm/kernel/external-module-compat.h
+++ b/kvm/kernel/external-module-compat.h
@@ -164,4 +164,7 @@ static inline struct super_block *kvmfs_get_sb(
#endif
-
+/*
+ * For set_64bit(), which is in a new file asm/cmpxchg.h in newer kernels.
+ */
+#include <asm/system.h>
diff --git a/kvm/kernel/include/asm/cmpxchg.h b/kvm/kernel/include/asm/cmpxchg.h
new file mode 100644
index 000000000..4258b93b1
--- /dev/null
+++ b/kvm/kernel/include/asm/cmpxchg.h
@@ -0,0 +1,5 @@
+/*
+ * Empty file to satisfy #include <linux/cmpxchg.h> for older kernels.
+ */
+
+