diff options
| author | Yisheng Xie <[email protected]> | 2017-02-24 15:00:40 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2017-02-24 17:46:56 -0800 |
| commit | 9c57b5808c625f4fc93da330b932647eaff321f7 (patch) | |
| tree | 5cf09952d937e1a13aff984655330c16d7178c7e | |
| parent | 85caa95b9f19bb3a26d7e025d1134760b69e0c40 (diff) | |
mm balloon: umount balloon_mnt when removing vb device
With CONFIG_BALLOON_COMPACTION=y the kernel will mount balloon_mnt for
balloon page migration when we probe a virtio_balloon device. However
we do not unmount it when removing the device. Fix this.
Fixes: b1123ea6d3b3 ("mm: balloon: use general non-lru movable page feature")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Yisheng Xie <[email protected]>
Acked-by: Minchan Kim <[email protected]>
Cc: Rafael Aquini <[email protected]>
Cc: Konstantin Khlebnikov <[email protected]>
Cc: Gioh Kim <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Michael S. Tsirkin <[email protected]>
Cc: Jason Wang <[email protected]>
Cc: Hanjun Guo <[email protected]>
Cc: Xishi Qiu <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | drivers/virtio/virtio_balloon.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 181793f07852..9d2738e9217f 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -615,8 +615,12 @@ static void virtballoon_remove(struct virtio_device *vdev) cancel_work_sync(&vb->update_balloon_stats_work); remove_common(vb); +#ifdef CONFIG_BALLOON_COMPACTION if (vb->vb_dev_info.inode) iput(vb->vb_dev_info.inode); + + kern_unmount(balloon_mnt); +#endif kfree(vb); } |