[PATCH v6 2/7] block: genhd: export disk_(un)block_events

[Aaron Lu <aaron.lwe@gmail.com>]

From: Aaron Lu <aaron.lu@intel.com>

When ODD is runtime powered off, there is no meaning to check events for
it, so disk_(un)block_events will be called in its suspend/resume
callback.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
---
 block/genhd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/block/genhd.c b/block/genhd.c
index cac7366..f630150 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -1468,6 +1468,7 @@ void disk_block_events(struct gendisk *disk)
 
 	mutex_unlock(&ev->block_mutex);
 }
+EXPORT_SYMBOL(disk_block_events);
 
 static void __disk_unblock_events(struct gendisk *disk, bool check_now)
 {
@@ -1512,6 +1513,7 @@ void disk_unblock_events(struct gendisk *disk)
 	if (disk->ev)
 		__disk_unblock_events(disk, false);
 }
+EXPORT_SYMBOL(disk_unblock_events);
 
 /**
  * disk_flush_events - schedule immediate event checking and flushing
-- 
1.7.11.3