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-rw-r--r--fs/internal.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/internal.h b/fs/internal.h
index 6d4ef208ef65..343a537ab809 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -71,3 +71,12 @@ extern void chroot_fs_refs(struct path *, struct path *);
* file_table.c
*/
extern void mark_files_ro(struct super_block *);
+
+/*
+ * super.c
+ */
+#ifdef CONFIG_BLOCK
+extern void sync_blockdevs(void);
+#else
+static inline void sync_blockdevs(void) { }
+#endif