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From: Paolo Bonzini <pbonzini@redhat.com>
To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: kwolf@redhat.com, asias@redhat.com, Fam Zheng <famz@redhat.com>,
	qemu-devel@nongnu.org, stefanha@redhat.com
Subject: Re: [Qemu-devel] [PATCH 2/2] vmdk: fix cluster size check for flat extents
Date: Fri, 20 Sep 2013 17:04:33 +0200	[thread overview]
Message-ID: <523C6401.3020509@redhat.com> (raw)
In-Reply-To: <20130919113102.GG22814@stefanha-thinkpad.redhat.com>

Il 19/09/2013 13:31, Stefan Hajnoczi ha scritto:
>> > We use the extent size as cluster size for flat extents (where no L1/L2
>> > table is allocated so it's safe).
> Why is the extent size passed as the cluster size parameter?

I think it's so that the flat extent doesn't take up too many cache entries.

Paolo

> The cleaner fix would be to stop passing it as cluster size :).

  reply	other threads:[~2013-09-20 15:04 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-18 11:14 [Qemu-devel] [PATCH 0/2] block: two fixes for image opening Fam Zheng
2013-09-18 11:14 ` [Qemu-devel] [PATCH 1/2] block: don't lose data from last incomplete sector Fam Zheng
2013-09-20 14:41   ` Stefan Hajnoczi
2013-09-18 11:14 ` [Qemu-devel] [PATCH 2/2] vmdk: fix cluster size check for flat extents Fam Zheng
2013-09-19 11:31   ` Stefan Hajnoczi
2013-09-20 15:04     ` Paolo Bonzini [this message]
2013-09-22  0:53       ` Fam Zheng
2013-09-19 11:31 ` [Qemu-devel] [PATCH 0/2] block: two fixes for image opening Stefan Hajnoczi

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