diff --git a/sys/compat/linuxkpi/common/include/linux/slab.h b/sys/compat/linuxkpi/common/include/linux/slab.h
--- a/sys/compat/linuxkpi/common/include/linux/slab.h
+++ b/sys/compat/linuxkpi/common/include/linux/slab.h
@@ -189,6 +189,14 @@
 	return (realloc(ptr, n * size, M_KMALLOC, linux_check_m_flags(flags)));
 }
 
+static inline void *
+kvrealloc(const void *ptr, size_t oldsize __unused, size_t newsize,
+    gfp_t flags)
+{
+	return (realloc(__DECONST(void *, ptr), newsize, M_KMALLOC,
+	    linux_check_m_flags(flags)));
+}
+
 extern void linux_kfree_async(void *);
 
 static inline void