From: Michael Jeanson <mjeanson@efficios.com>
Date: Wed, 8 Jul 2020 18:45:22 +0000 (-0400)
Subject: fix: no __lttng_vmalloc_node_range() prior to v2.6.38
X-Git-Tag: v2.11.5~1
X-Git-Url: http://git.liburcu.org/?p=lttng-modules.git;a=commitdiff_plain;h=4b1927afc7b4523aa9ad9f4d3927071076e4bfe4

fix: no __lttng_vmalloc_node_range() prior to v2.6.38

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I9747c89f7b57448f4f1a5c1573ba2e81afe09a08
---

diff --git a/wrapper/vmalloc.h b/wrapper/vmalloc.h
index 91d46bd1..1f0d0c4e 100644
--- a/wrapper/vmalloc.h
+++ b/wrapper/vmalloc.h
@@ -310,7 +310,7 @@ void *__canary____lttng_vmalloc_node_range(unsigned long size, unsigned long ali
 			node, caller);
 }
 
-#else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)) */
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
 
 /*
  * kallsyms wrapper of __vmalloc_node with a fallback to kmalloc_node.
@@ -358,6 +358,20 @@ void *__canary____lttng_vmalloc_node_range(unsigned long size, unsigned long ali
 			node, caller);
 }
 
+#else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)) */
+
+/*
+ * Basic fallback for kernel prior to 2.6.38 without __vmalloc_node_range()
+ */
+static inline
+void *__lttng_vmalloc_node_range(unsigned long size, unsigned long align,
+			unsigned long start, unsigned long end, gfp_t gfp_mask,
+			pgprot_t prot, unsigned long vm_flags, int node,
+			void *caller)
+{
+	return __vmalloc(size, gfp_mask, prot);
+}
+
 #endif
 
 /**