[PATCH] kmemdup: introduce

[mv-sheeva.git] / mm / util.c

diff --git a/mm/util.c b/mm/util.c
index 7368479220b3b4c3d8c12a9306bb18221d9a99b9..e14fa84ef39a2df08b2087259c110851bfcf1bcc 100644 (file)
--- a/mm/util.c
+++ b/mm/util.c
@@ -40,6 +40,24 @@ char *kstrdup(const char *s, gfp_t gfp)
 }
 EXPORT_SYMBOL(kstrdup);
 
+/**
+ * kmemdup - duplicate region of memory
+ *
+ * @src: memory region to duplicate
+ * @len: memory region length
+ * @gfp: GFP mask to use
+ */
+void *kmemdup(const void *src, size_t len, gfp_t gfp)
+{
+       void *p;
+
+       p = ____kmalloc(len, gfp);
+       if (p)
+               memcpy(p, src, len);
+       return p;
+}
+EXPORT_SYMBOL(kmemdup);
+
 /*
  * strndup_user - duplicate an existing string from user space
  *