it's worse than that, I'm afraid. With my patch applied,
mount -o remount server:/path
no longer works, which is why we decided we had to introduce a new flag.
> > The current proposed solution introduces a new flag, MS_MOVE which
> > indicates that the filesystem should be moved to a new mountpoint.
>
> I guess I would just have reused MS_REMOUNT to avoid forcing a mount
> update, but MS_MOVE is probably cleaner, considering that you can
> create somewhat obscure configuration problems this way.
I'd love to not have to use another bit, but the problems seem impossible
to overcome.
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