From: Paolo Bonzini <pbonzini@redhat.com>
To: Kevin Wolf <kwolf@redhat.com>,
Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, armbru@redhat.com,
eblake@redhat.com, mreitz@redhat.com, fam@euphon.net,
stefanha@redhat.com, den@openvz.org
Subject: Re: [Qemu-devel] [PATCH] file-posix: add rough-block-status parameter
Date: Wed, 9 Jan 2019 17:42:51 +0100 [thread overview]
Message-ID: <5ddd78e0-90ed-a6e5-c454-f1a2e44c1a37@redhat.com> (raw)
In-Reply-To: <20190109112311.GB4867@localhost.localdomain>
On 09/01/19 12:23, Kevin Wolf wrote:
> Also note that this is only metadata preallocation; full preallocation
> will still return allocated for the protocol layer and so it will always
> be slow.
Full preallocation these days can create images with preallocated but
known-zero blocks, I think?
Paolo
next prev parent reply other threads:[~2019-01-09 16:50 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-08 19:45 [Qemu-devel] [PATCH] file-posix: add rough-block-status parameter Vladimir Sementsov-Ogievskiy
2019-01-08 20:11 ` Eric Blake
2019-01-09 11:23 ` Kevin Wolf
2019-01-09 16:42 ` Paolo Bonzini [this message]
2019-01-09 16:51 ` Kevin Wolf
2019-01-09 16:55 ` Paolo Bonzini
2019-01-09 17:09 ` Kevin Wolf
2019-01-09 18:09 ` Denis V.Lunev
2019-01-09 17:00 ` Eric Blake
2019-01-09 12:33 ` [Qemu-devel] [Qemu-block] " Stefan Hajnoczi
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