[PATCH] dm: prevent removal if open

[firefly-linux-kernel-4.4.55.git] / drivers / md / dm.h

diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 71ddd1e230076a6c18853ba6cf32cdfe06adaf74..9ebb24b037bcd665438964a45fb2e2921b807942 100644 (file)
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -123,5 +123,7 @@ void dm_stripe_exit(void);
 
 void *dm_vcalloc(unsigned long nmemb, unsigned long elem_size);
 union map_info *dm_get_mapinfo(struct bio *bio);
+int dm_open_count(struct mapped_device *md);
+int dm_lock_for_deletion(struct mapped_device *md);
 
 #endif