1 files changed, 7 insertions, 0 deletions

diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index f49eecf2e573..623f094c9d8d 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -536,6 +536,7 @@ struct address_space_operations {
         /* migrate the contents of a page to the specified target */
         int (*migratepage) (struct page *, struct page *);
         int (*launder_page) (struct page *);
+        int (*error_remove_page) (struct mapping *mapping, struct page *page);
 };
 
   writepage: called by the VM to write a dirty page to backing store.
@@ -694,6 +695,12 @@ struct address_space_operations {
         prevent redirtying the page, it is kept locked during the whole
         operation.
 
+  error_remove_page: normally set to generic_error_remove_page if truncation
+        is ok for this address space. Used for memory failure handling.
+        Setting this implies you deal with pages going away under you,
+        unless you have them locked or reference counts increased.
+
+
 The File Object
 ===============