From: Kevin Wolf <kwolf@redhat.com>
To: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Cc: aliguori@us.ibm.com, stefanha@gmail.com, qemu-devel@nongnu.org,
lcapitulino@redhat.com, pbonzini@redhat.com, armbru@redhat.com
Subject: Re: [Qemu-devel] [PATCH V10 11/17] qmp: add ImageInfo in BlockDeviceInfo used by query-block
Date: Tue, 2 Apr 2013 10:09:07 +0200 [thread overview]
Message-ID: <20130402080906.GC2341@dhcp-200-207.str.redhat.com> (raw)
In-Reply-To: <5154FE04.5020506@linux.vnet.ibm.com>
Am 29.03.2013 um 03:35 hat Wenchao Xia geschrieben:
> 于 2013-3-28 17:54, Kevin Wolf 写道:
> >Am 22.03.2013 um 15:19 hat Wenchao Xia geschrieben:
> >> Now image info will be retrieved as an embbed json object inside
> >>BlockDeviceInfo, backing chain info and all related internal snapshot
> >>info can be got in the enhanced recursive structure of ImageInfo.
> >>
> >>Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
> >>---
> >> block/qapi.c | 39 ++++++++++++++++++++++++++--
> >> include/block/qapi.h | 4 ++-
> >> qapi-schema.json | 5 +++-
> >> qmp-commands.hx | 67 +++++++++++++++++++++++++++++++++++++++++++++++++-
> >> 4 files changed, 109 insertions(+), 6 deletions(-)
> >>
> >>diff --git a/block/qapi.c b/block/qapi.c
> >>index df73f5b..9051947 100644
> >>--- a/block/qapi.c
> >>+++ b/block/qapi.c
> >>@@ -200,9 +200,15 @@ int bdrv_query_image_info(BlockDriverState *bs,
> >> return 0;
> >> }
> >>
> >>-BlockInfo *bdrv_query_info(BlockDriverState *bs)
> >>+/* return 0 on success, and @p_info will be set only on success. */
> >>+int bdrv_query_info(BlockDriverState *bs,
> >>+ BlockInfo **p_info,
> >>+ Error **errp)
> >> {
> >> BlockInfo *info = g_malloc0(sizeof(*info));
> >>+ BlockDriverState *bs0;
> >>+ ImageInfo **p_image_info;
> >>+ int ret = 0;
> >
> >ret is never changed, so this function always returns 0. I would suggest
> >to drop ret and make the function return type void.
> >
> My bad, I forgot to set its value, the interface is intend to return
> negative error number and errp both on fail.
Why do you need two separate error reporting mechanisms? Shouldn't only
errp be enough?
Kevin
next prev parent reply other threads:[~2013-04-02 8:39 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-22 14:18 [Qemu-devel] [PATCH V10 00/17] qmp/hmp interfaces for internal snapshot info Wenchao Xia
2013-03-22 14:18 ` [Qemu-devel] [PATCH V10 01/17] block: move bdrv_snapshot_find() to block/snapshot.c Wenchao Xia
2013-03-22 14:18 ` [Qemu-devel] [PATCH V10 02/17] block: distinguish id and name in bdrv_find_snapshot() Wenchao Xia
2013-03-22 14:18 ` [Qemu-devel] [PATCH V10 03/17] qemu-img: remove unused parameter in collect_image_info() Wenchao Xia
2013-03-22 14:19 ` [Qemu-devel] [PATCH V10 04/17] block: move collect_snapshots() and collect_image_info() to block/qapi.c Wenchao Xia
2013-03-22 14:19 ` [Qemu-devel] [PATCH V10 05/17] block: add snapshot info query function bdrv_query_snapshot_info_list() Wenchao Xia
2013-03-27 21:31 ` Eric Blake
2013-03-22 14:19 ` [Qemu-devel] [PATCH V10 06/17] block: add check for VM snapshot in bdrv_query_snapshot_info_list() Wenchao Xia
2013-03-22 14:19 ` [Qemu-devel] [PATCH V10 07/17] block: add image info query function bdrv_query_image_info() Wenchao Xia
2013-03-22 14:19 ` [Qemu-devel] [PATCH V10 08/17] block: move qmp_query_block() and bdrv_query_info() to block/qapi.c Wenchao Xia
2013-03-29 20:10 ` Eric Blake
2013-03-30 12:32 ` Wenchao Xia
2013-03-22 14:19 ` [Qemu-devel] [PATCH V10 09/17] qmp: add interface query-snapshots Wenchao Xia
2013-03-22 14:19 ` [Qemu-devel] [PATCH V10 10/17] qmp: add recursive member in ImageInfo Wenchao Xia
2013-03-29 22:54 ` Eric Blake
2013-03-22 14:19 ` [Qemu-devel] [PATCH V10 11/17] qmp: add ImageInfo in BlockDeviceInfo used by query-block Wenchao Xia
2013-03-28 9:54 ` Kevin Wolf
2013-03-29 2:35 ` Wenchao Xia
2013-04-02 8:09 ` Kevin Wolf [this message]
2013-04-02 8:54 ` Wenchao Xia
2013-04-02 9:30 ` Kevin Wolf
2013-03-22 14:19 ` [Qemu-devel] [PATCH V10 12/17] hmp: add function hmp_info_snapshots() Wenchao Xia
2013-03-29 23:04 ` Eric Blake
2013-03-30 12:38 ` Wenchao Xia
2013-04-02 7:39 ` Kevin Wolf
2013-03-22 14:19 ` [Qemu-devel] [PATCH V10 13/17] hmp: switch snapshot info function to qmp based one Wenchao Xia
2013-04-01 15:56 ` Eric Blake
2013-03-22 14:19 ` [Qemu-devel] [PATCH V10 14/17] block: move dump_human_image_info() to block/qapi.c Wenchao Xia
2013-03-22 14:19 ` [Qemu-devel] [PATCH V10 15/17] block: dump to buffer for bdrv_image_info_dump() Wenchao Xia
2013-04-01 19:17 ` Eric Blake
2013-04-02 2:42 ` Wenchao Xia
2013-03-22 14:19 ` [Qemu-devel] [PATCH V10 16/17] hmp: show ImageInfo in 'info block' Wenchao Xia
2013-03-28 11:06 ` Kevin Wolf
2013-03-22 14:19 ` [Qemu-devel] [PATCH V10 17/17] hmp: add parameter device and -b for info block Wenchao Xia
2013-03-28 11:09 ` Kevin Wolf
2013-03-29 2:48 ` Wenchao Xia
2013-04-02 7:46 ` Kevin Wolf
2013-03-28 11:10 ` [Qemu-devel] [PATCH V10 00/17] qmp/hmp interfaces for internal snapshot info Kevin Wolf
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