From: Pavel Butsykin <pbutsykin@virtuozzo.com>
To: Eric Blake <eblake@redhat.com>,
qemu-block@nongnu.org, qemu-devel@nongnu.org
Cc: kwolf@redhat.com, den@openvz.org, mreitz@redhat.com
Subject: Re: [Qemu-devel] [PATCH] qcow2: move qcow2_store_persistent_dirty_bitmaps() before cache flushing
Date: Wed, 6 Sep 2017 11:19:25 +0300 [thread overview]
Message-ID: <ad95bfe5-22e1-6d62-4fe2-a2e8cfd9c82b@virtuozzo.com> (raw)
In-Reply-To: <04bb5a08-99fd-5c59-9be6-765a63a06412@redhat.com>
On 05.09.2017 22:30, Eric Blake wrote:
> On 09/04/2017 05:18 AM, Pavel Butsykin wrote:
>> After calling qcow2_inactivate(), all qcow2 caches must be flushed, but this
>> may not happen, because the last call qcow2_store_persistent_dirty_bitmaps()
>> can lead to marking l2/refcont cache as dirty.
>>
>> Let's move qcow2_store_persistent_dirty_bitmaps() before the caсhe flushing
>> to fix it.
>>
>> Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
>> ---
>> block/qcow2.c | 16 ++++++++--------
>> 1 file changed, 8 insertions(+), 8 deletions(-)
>>
>
> Should this cc: qemu-stable?
The latest stable branch (2.8?) doesn't contain the persistent dirty bitmap.
> Reviewed-by: Eric Blake <eblake@redhat.com>
>
next prev parent reply other threads:[~2017-09-06 8:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-04 10:18 [Qemu-devel] [PATCH] qcow2: move qcow2_store_persistent_dirty_bitmaps() before cache flushing Pavel Butsykin
2017-09-05 19:30 ` Eric Blake
2017-09-06 8:19 ` Pavel Butsykin [this message]
2017-09-06 12:40 ` Kevin Wolf
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