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Re: [Qemu-devel] [PATCH 02/15] sheepdog: Fix error handling in sd_snapsh
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [PATCH 02/15] sheepdog: Fix error handling in sd_snapshot_delete() |
Date: |
Thu, 2 Mar 2017 17:13:52 -0600 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0 |
On 03/02/2017 03:43 PM, Markus Armbruster wrote:
> As a bdrv_snapshot_delete() method, sd_snapshot_delete() must set an
> error and return negative errno on failure. It sometimes returns -1,
> and sometimes neglects to set an error. It also prints error messages
> with error_report(). Fix all that.
>
> Moreover, its handling of an attempt to delete an nonexistent snapshot
> is wrong: it error_report()s and succeeds. Fix it to set an error and
> return -ENOENT instead.
>
> Signed-off-by: Markus Armbruster <address@hidden>
> ---
> block/sheepdog.c | 37 +++++++++++++++++--------------------
> 1 file changed, 17 insertions(+), 20 deletions(-)
>
> @@ -2447,15 +2444,14 @@ static bool remove_objects(BDRVSheepdogState *s)
> data_vdi_id[start_idx]),
> false, s->cache_flags);
> if (ret < 0) {
> - error_report("failed to discard snapshot inode.");
> - result = false;
> + error_setg(errp, "failed to discard snapshot inode.");
Lose the trailing '.'
With that fixed,
Reviewed-by: Eric Blake <address@hidden>
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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[Qemu-devel] [PATCH 15/15] sheepdog: Support blockdev-add, Markus Armbruster, 2017/03/02
[Qemu-devel] [PATCH 09/15] sheepdog: Implement bdrv_parse_filename(), Markus Armbruster, 2017/03/02