kasan, arm64: move initialization message

[linux-2.6-microblaze.git] / mm / util.c

diff --git a/mm/util.c b/mm/util.c
index 5ef378a..8c9b7d1 100644 (file)
--- a/mm/util.c
+++ b/mm/util.c
@@ -69,7 +69,8 @@ EXPORT_SYMBOL(kstrdup);
  * @s: the string to duplicate
  * @gfp: the GFP mask used in the kmalloc() call when allocating memory
  *
- * Note: Strings allocated by kstrdup_const should be freed by kfree_const.
+ * Note: Strings allocated by kstrdup_const should be freed by kfree_const and
+ * must not be passed to krealloc().
  *
  * Return: source string if it is in .rodata section otherwise
  * fallback to kstrdup.
@@ -310,6 +311,18 @@ int vma_is_stack_for_current(struct vm_area_struct *vma)
        return (vma->vm_start <= KSTK_ESP(t) && vma->vm_end >= KSTK_ESP(t));
 }
 
+/*
+ * Change backing file, only valid to use during initial VMA setup.
+ */
+void vma_set_file(struct vm_area_struct *vma, struct file *file)
+{
+       /* Changing an anonymous vma with this is illegal */
+       get_file(file);
+       swap(vma->vm_file, file);
+       fput(file);
+}
+EXPORT_SYMBOL(vma_set_file);
+
 #ifndef STACK_RND_MASK
 #define STACK_RND_MASK (0x7ff >> (PAGE_SHIFT - 12))     /* 8MB of VA */
 #endif
@@ -957,7 +970,7 @@ out:
        return res;
 }
 
-int memcmp_pages(struct page *page1, struct page *page2)
+int __weak memcmp_pages(struct page *page1, struct page *page2)
 {
        char *addr1, *addr2;
        int ret;