From: "Denis V. Lunev" <den-lists@virtuozzo.com>
To: Ren Kimura <rkx1209dev@gmail.com>, mreitz@redhat.com
Cc: kwolf@redhat.com, qemu-devel@nongnu.org, qemu-block@nongnu.org
Subject: Re: [Qemu-devel] [PATCH v3] qemu-img: check block status of backing file when converting.
Date: Thu, 21 Apr 2016 09:53:18 +0300 [thread overview]
Message-ID: <571878DE.80405@virtuozzo.com> (raw)
In-Reply-To: <1460867433-13251-1-git-send-email-rkx1209dev@gmail.com>
On 04/17/2016 07:30 AM, Ren Kimura wrote:
> When converting images, check the block status of its backing file chain
> to avoid needlessly reading zeros.
>
> Signed-off-by: Ren Kimura <rkx1209dev@gmail.com>
IMHO bdrv_get_block_status_above(bs, NULL, ...) should do the job
without recursion.
prev parent reply other threads:[~2016-04-21 7:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-17 4:30 [Qemu-devel] [PATCH v3] qemu-img: check block status of backing file when converting Ren Kimura
2016-04-21 5:28 ` Ren Kimura
2016-04-21 6:53 ` Denis V. Lunev [this message]
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