From: Matteo Croce <mcroce@xxxxxxxxxxxxx>
Increment the disk sequence number when the media has changed,
i.e. on DISK_EVENT_MEDIA_CHANGE event.
$ cat /sys/class/block/sr0/diskseq
12
$ eject
$ cat /sys/class/block/sr0/diskseq
22
Signed-off-by: Matteo Croce <mcroce@xxxxxxxxxxxxx>
---
block/genhd.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/block/genhd.c b/block/genhd.c
index 768d8d5d1eca..9d58e0ea18ae 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -1657,6 +1657,9 @@ static void disk_check_events(struct disk_events *ev,
spin_unlock_irq(&ev->lock);
+ if (events & DISK_EVENT_MEDIA_CHANGE)
+ inc_diskseq(disk);
+
/*
* Tell userland about new events. Only the events listed in
* @disk->events are reported, and only if DISK_EVENT_FLAG_UEVENT
--
2.31.1
