On 30/01/2015 11:02, Dr. David Alan Gilbert wrote: > Yes; I've not got a clue what it's effect is, but given it's glued into > the block code I'm sure that breaking it will be subtle and nasty. I'm > also reasonably sure it's probably going to do something different in the > loadvm > case which is probably unintended.
It avoids metadata writes that would be concurrent with the source's. loadvm is okay because it doesn't have a concurrently running source, but it doesn't hurt either. Paolo
