Commit e9986f30 authored Mar 29, 2012 by Vivek Goyal Committed by Jens Axboe Mar 29, 2012

virtio-blk: Call revalidate_disk() upon online disk resize



If a virtio disk is open in guest and a disk resize operation is done,
(virsh blockresize), new size is not visible to tools like "fdisk -l".
This seems to be happening as we update only part->nr_sects and not
bdev->bd_inode size.

Call revalidate_disk() which should take care of it. I tested growing disk
size of already open disk and it works for me.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent 6674fb79

drivers/block/virtio_blk.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -351,6 +351,7 @@ static void virtblk_config_changed_work(struct work_struct *work)
		cap_str_10, cap_str_2);

		set_capacity(vblk->disk, capacity);
		revalidate_disk(vblk->disk);
		done:
		mutex_unlock(&vblk->config_lock);
		}