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Re: [Qemu-devel] [PATCH] block: fix external snapshot abort permission e
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From: |
Kevin Wolf |
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Subject: |
Re: [Qemu-devel] [PATCH] block: fix external snapshot abort permission error |
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Date: |
Wed, 7 Jun 2017 18:52:36 +0200 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
Am 07.06.2017 um 15:55 hat Jeff Cody geschrieben:
> In external_snapshot_abort(), we try to undo what was done in
> external_snapshot_prepare() calling bdrv_replace_node() to swap the
> nodes back. However, we receive a permissions error as writers are
> blocked on the old node, which is now the new node backing file.
>
> An easy fix (initially suggested by Kevin Wolf) is to call
> bdrv_set_backing_hd() on the new node, to set the backing node to NULL.
>
> Signed-off-by: Jeff Cody <address@hidden>
Thanks, applied to the block branch.
Kevin