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Re: [Qemu-block] [PATCH] backup: Fail early if cannot determine cluster

From: Max Reitz
Subject: Re: [Qemu-block] [PATCH] backup: Fail early if cannot determine cluster size
Date: Tue, 14 Jun 2016 16:49:53 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1.1

On 18.05.2016 07:53, Fam Zheng wrote:
> Otherwise the job is orphaned and block_job_cancel_sync in
> bdrv_close_all() when quiting will hang.
> A simple reproducer is running blockdev-backup from null-co:// to
> null-co://.
> Cc: address@hidden
> Signed-off-by: Fam Zheng <address@hidden>
> ---
>  block/backup.c | 34 ++++++++++++++++++----------------
>  1 file changed, 18 insertions(+), 16 deletions(-)

Sorry for having waited so long (I was thinking that maybe Jeff wanted
to take this patch), but now the patch no longer applies and I don't
feel comfortable with just fixing it up myself; git-backport-diff tells
me the required changes are "[0015] [FC]".


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