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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>
hifive-unleashed-5.1
Vivek Goyal 2012-03-29 10:09:44 +02:00 committed by Jens Axboe
parent 6674fb79ca
commit e9986f303d
1 changed files with 1 additions and 0 deletions
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drivers/block/virtio_blk.c
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@ -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);
}