[PATCH] namespaces: exit_task_namespaces() invalidates nsproxy

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

diff --git a/mm/util.c b/mm/util.c
index b68d3d7d0359b0ab84d171ce7a97bae1a5073596..e14fa84ef39a2df08b2087259c110851bfcf1bcc 100644 (file)
--- a/mm/util.c
+++ b/mm/util.c
@@ -5,18 +5,18 @@
 #include <asm/uaccess.h>
 
 /**
- * kzalloc - allocate memory. The memory is set to zero.
+ * __kzalloc - allocate memory. The memory is set to zero.
  * @size: how many bytes of memory are required.
  * @flags: the type of memory to allocate.
  */
-void *kzalloc(size_t size, gfp_t flags)
+void *__kzalloc(size_t size, gfp_t flags)
 {
        void *ret = ____kmalloc(size, flags);
        if (ret)
                memset(ret, 0, size);
        return ret;
 }
-EXPORT_SYMBOL(kzalloc);
+EXPORT_SYMBOL(__kzalloc);
 
 /*
  * kstrdup - allocate space for and copy an existing string
@@ -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
  *