This increases the snapshot sequence number, which will cause
snapshots to be removed lazily.
@param io the pool in which the snapshot will exist
@param snapid where to store the newly allocated snapshot ID
@returns 0 on success, negative error code on failure
Remove a self-managed snapshot
This increases the snapshot sequence number, which will cause snapshots to be removed lazily.
@param io the pool in which the snapshot will exist @param snapid where to store the newly allocated snapshot ID @returns 0 on success, negative error code on failure