diff options
| -rw-r--r-- | fs/overlayfs/ovl_entry.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/overlayfs/ovl_entry.h b/fs/overlayfs/ovl_entry.h index edb457544b5f..e9539f98e86a 100644 --- a/fs/overlayfs/ovl_entry.h +++ b/fs/overlayfs/ovl_entry.h @@ -121,6 +121,9 @@ extern struct file_system_type ovl_fs_type; static inline struct ovl_fs *OVL_FS(struct super_block *sb) { + if (IS_ENABLED(CONFIG_OVERLAY_FS_DEBUG)) + WARN_ON_ONCE(sb->s_type != &ovl_fs_type); + return (struct ovl_fs *)sb->s_fs_info; } |