fix: global_dirty_limit was introduced in v3.1

[lttng-modules.git] / wrapper / writeback.h

diff --git a/wrapper/writeback.h b/wrapper/writeback.h
index 00d727cc3b0405713554275cd2997345cc7e0149..328c9323549ee8aee5ef8711dbab153513b1ad3d 100644 (file)
--- a/wrapper/writeback.h
+++ b/wrapper/writeback.h
@@ -51,7 +51,7 @@ unsigned long __canary__global_wb_domain(void)
        return global_wb_domain.dirty_limit;
 }
 
-#else
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)
 
 static unsigned long *global_dirty_limit_sym;
 
@@ -88,11 +88,13 @@ unsigned long __canary__global_dirty_limit(void)
 
 #include <linux/writeback.h>
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)
 static inline
 unsigned long wrapper_global_dirty_limit(void)
 {
        return global_dirty_limit;
 }
+#endif
 
 #endif