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-rw-r--r--mm/vmalloc.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index a3c70e275f4e..4a7d7459c4f9 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2672,6 +2672,26 @@ void *vzalloc_node(unsigned long size, int node)
EXPORT_SYMBOL(vzalloc_node);
/**
+ * vmalloc_user_node_flags - allocate memory for userspace on a specific node
+ * @size: allocation size
+ * @node: numa node
+ * @flags: flags for the page level allocator
+ *
+ * The resulting memory area is zeroed so it can be mapped to userspace
+ * without leaking data.
+ *
+ * Return: pointer to the allocated memory or %NULL on error
+ */
+void *vmalloc_user_node_flags(unsigned long size, int node, gfp_t flags)
+{
+ return __vmalloc_node_range(size, SHMLBA, VMALLOC_START, VMALLOC_END,
+ flags | __GFP_ZERO, PAGE_KERNEL,
+ VM_USERMAP, node,
+ __builtin_return_address(0));
+}
+EXPORT_SYMBOL(vmalloc_user_node_flags);
+
+/**
* vmalloc_exec - allocate virtually contiguous, executable memory
* @size: allocation size
*