fanotify: groups can specify their f_flags for new fd

Currently fanotify fds opened for thier listeners are done with f_flags
equal to O_RDONLY | O_LARGEFILE.  This patch instead takes f_flags from the
fanotify_init syscall and uses those when opening files in the context of
the listener.

Signed-off-by: Eric Paris <eparis@redhat.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index a46355db1e47..a83859d7d36e 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -169,14 +169,17 @@ struct fsnotify_group {
                         struct user_struct      *user;
                 } inotify_data;
 #endif
-#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
+#ifdef CONFIG_FANOTIFY
                 struct fanotify_group_private_data {
+#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
                         /* allows a group to block waiting for a userspace response */
                         struct mutex access_mutex;
                         struct list_head access_list;
                         wait_queue_head_t access_waitq;
+#endif /* CONFIG_FANOTIFY_ACCESS_PERMISSIONS */
+                        int f_flags;
                 } fanotify_data;
-#endif
+#endif /* CONFIG_FANOTIFY */
         };
 };