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From: Kevin Wolf <kwolf@redhat.com>
To: Anton Kuchin <antonkuchin@yandex-team.ru>
Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org,
	libvir-list@redhat.com, Max Reitz <mreitz@redhat.com>,
	Eric Blake <eblake@redhat.com>,
	Markus Armbruster <armbru@redhat.com>,
	Evgeny Yakovlev <wrfsh@yandex-team.ru>,
	nsoffer@redhat.com
Subject: Re: [Qemu-devel] [PATCH] qmp: Deprecate query-nodes option of query-blockstats
Date: Mon, 28 Jan 2019 16:37:50 +0100	[thread overview]
Message-ID: <20190128153750.GE5756@localhost.localdomain> (raw)
In-Reply-To: <20190128151521.13875-1-antonkuchin@yandex-team.ru>

Am 28.01.2019 um 16:15 hat Anton Kuchin geschrieben:
> This option is broken since a6baa60807 in v2.9 and returns mostly
> zeroes instead of real stats because actual querring of BlockStats
> that resides in blk is missing.
> 
> And it makes no sense because with this option BlockDriverState-s
> are iterated but BlockAcctStats belong to BlockBackend and not BDS
> since 7f0e9da6f13 in v2.5
> 
> Signed-off-by: Anton Kuchin <antonkuchin@yandex-team.ru>

Isn't query-nodes the only way to get wr_highest_offset for the protocol
layer? oVirt depends on this, as far as I know.

Kevin

  reply	other threads:[~2019-01-28 15:38 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-28 15:15 [Qemu-devel] [PATCH] qmp: Deprecate query-nodes option of query-blockstats Anton Kuchin
2019-01-28 15:37 ` Kevin Wolf [this message]
2019-01-28 16:12   ` [Qemu-devel] [libvirt] " Daniel P. Berrangé
2019-01-28 16:26     ` Kevin Wolf
2019-01-28 18:02     ` Nir Soffer
2019-01-28 17:33   ` [Qemu-devel] " Anton Kuchin
2019-01-28 16:04 ` Thomas Huth
2019-01-28 16:18   ` [Qemu-devel] [libvirt] " Daniel P. Berrangé

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