Jens Axboe wrote: > On Thu, May 22 2008, Rusty Russell wrote: >> On Wednesday 21 May 2008 23:12:39 Chris Lalancette wrote: >>> diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c >>> index 4962e62..c678ac5 100644 >>> --- a/drivers/block/virtio_blk.c >>> +++ b/drivers/block/virtio_blk.c >>> @@ -294,6 +294,7 @@ static void virtblk_remove(struct virtio_device *vdev) >>> vdev->config->reset(vdev); >>> >>> blk_cleanup_queue(vblk->disk->queue); >>> + del_gendisk(vblk->disk); >>> put_disk(vblk->disk); >>> unregister_blkdev(major, "virtblk"); >>> mempool_destroy(vblk->pool); >> Thanks Chris, it seems reasonable and I'm sure it works (kinda hard to >> test here, it's my root block dev). Other drivers seem to do >> blk_cleanup_queue() *after* del_gendisk: does it matter? >> >> Jens CC'd: he's gentle with my dumb questions... Rusty. > > del_gendisk() can generate IO, so it would seem safer to do that > _before_ putting the queue reference :-) > Ah, good to know. Out of curiousity, why would del_gendisk() generate additional I/O? Chris Lalancette _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
