kern/157728: [zfs] zfs (v28) incremental receive may leave
behind temporary clones
borjam at sarenet.es
Thu Aug 4 15:40:10 UTC 2011
The following reply was made to PR kern/157728; it has been noted by GNATS.
From: Borja Marcos <borjam at sarenet.es>
To: Martin Matuska <mm at FreeBSD.org>
Cc: bug-followup at FreeBSD.org,
Pawel Jakub Dawidek <pjd at FreeBSD.org>
Subject: Re: kern/157728: [zfs] zfs (v28) incremental receive may leave behind temporary clones
Date: Thu, 4 Aug 2011 17:37:26 +0200
On Aug 4, 2011, at 4:18 PM, Martin Matuska wrote:
> But I still think we don't have to prefetch data we are not =
> I don't think that there will be any ugly interaction in this case.
> The idea of the prefetch code is to speed up access to the data
> structure by caching it into memory.
> So what we don't prefetch (is not cached) will be read the normal way
> (and not from cache).
> If you follow its history, you can see it well:
> Prefetch for zfs list was introduced in OpenSolaris changeset 8415 and
> didn't change very much since that point:
> If you remove that code, it will still work the way it should, but =
> I still see no problem in not-prefetching hidden datasets.
Understood :) Thank you very much. As I said, I'm not that familiar with =
I'm going to try the patch and will let you know the outcome. I guess =
it will effectively fix it.
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