userns: Better restrictions on when proc and sysfs can be mounted

[platform/adaptation/renesas_rcar/renesas_kernel.git] / include / linux / fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 834c9e5..3050c62 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -10,6 +10,7 @@
 #include <linux/stat.h>
 #include <linux/cache.h>
 #include <linux/list.h>
+#include <linux/llist.h>
 #include <linux/radix-tree.h>
 #include <linux/rbtree.h>
 #include <linux/init.h>
@@ -372,8 +373,8 @@ struct address_space_operations {
        int (*get_xip_mem)(struct address_space *, pgoff_t, int,
                                                void **, unsigned long *);
        /*
-        * migrate the contents of a page to the specified target. If sync
-        * is false, it must not block.
+        * migrate the contents of a page to the specified target. If
+        * migrate_mode is MIGRATE_ASYNC, it must not block.
         */
        int (*migratepage) (struct address_space *,
                        struct page *, struct page *, enum migrate_mode);
@@ -768,6 +769,7 @@ struct file {
         */
        union {
                struct list_head        fu_list;
+               struct llist_node       fu_llist;
                struct rcu_head         fu_rcuhead;
        } f_u;
        struct path             f_path;
@@ -1895,6 +1897,7 @@ extern int vfs_ustat(dev_t, struct kstatfs *);
 extern int freeze_super(struct super_block *super);
 extern int thaw_super(struct super_block *super);
 extern bool our_mnt(struct vfsmount *mnt);
+extern bool fs_fully_visible(struct file_system_type *);
 
 extern int current_umask(void);