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Re: [Qemu-devel] [RFC PATCH COLO v2 06/13] NBD client: implement block d


From: Fam Zheng
Subject: Re: [Qemu-devel] [RFC PATCH COLO v2 06/13] NBD client: implement block driver interfaces for block replication
Date: Fri, 27 Mar 2015 09:06:02 +0800
User-agent: Mutt/1.5.23 (2014-03-12)

On Thu, 03/26 15:32, Wen Congyang wrote:
> On 03/26/2015 03:21 PM, Fam Zheng wrote:
> > On Wed, 03/25 17:36, Wen Congyang wrote:
> >> Signed-off-by: Wen Congyang <address@hidden>
> >> Signed-off-by: zhanghailiang <address@hidden>
> >> Signed-off-by: Gonglei <address@hidden>
> >> ---
> >>  block/nbd.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
> >>  1 file changed, 49 insertions(+)
> >>
> >> diff --git a/block/nbd.c b/block/nbd.c
> >> index 3faf865..753b322 100644
> >> --- a/block/nbd.c
> >> +++ b/block/nbd.c
> >> @@ -458,6 +458,52 @@ static void nbd_refresh_filename(BlockDriverState *bs)
> >>      bs->full_open_options = opts;
> >>  }
> >>  
> >> +static void nbd_start_replication(BlockDriverState *bs, COLOMode mode,
> >> +                                  Error **errp)
> >> +{
> >> +    BDRVNBDState *s = bs->opaque;
> >> +
> >> +    /*
> >> +     * TODO: support COLO_SECONDARY_MODE if we allow secondary
> >> +     * QEMU becoming primary QEMU.
> >> +     */
> >> +    if (mode != COLO_MODE_PRIMARY) {
> >> +        error_set(errp, QERR_INVALID_PARAMETER, "mode");
> > 
> > Please use error_setg. (Please grep the whole series :)
> 
> Why? QERR_INVALID_PARAMETER includes ERROR_CLASS_GENERIC_ERROR.

Because error classes are deprecated. See also commit 5b347c5410.

Fam



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