On 12/21/2015 11:00 AM, Wido den Hollander wrote:
My discard code now works, but I wanted to verify. If I understand Jason correctly it would be a matter of figuring out the 'order' of a image and call rbd_discard in a loop until you reach the end of the image.
You'd need to get the order via rbd_stat(), convert it to object size (i.e. (1 << order)), and fetch stripe_count with rbd_get_stripe_count().
Then do the discards in (object size * stripe_count) chunks. This ensures you discard entire objects. This is the size you'd want to use for import/export as well, ideally.
I just want libvirt to be as feature complete as possible when it comes to RBD.
I see, makes sense. Josh -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html