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Re: [Qemu-devel] [PATCH v4 02/11] block: add error parameter to del_exis
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PATCH v4 02/11] block: add error parameter to del_existing_snapshots() |
Date: |
Tue, 09 Apr 2013 15:27:32 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.1 (gnu/linux) |
Pavel Hrdina <address@hidden> writes:
> Signed-off-by: Pavel Hrdina <address@hidden>
> Reviewed-by: Eric Blake <address@hidden>
> ---
> savevm.c | 12 +++++++-----
> 1 file changed, 7 insertions(+), 5 deletions(-)
>
> diff --git a/savevm.c b/savevm.c
> index 77c5291..dc1f4a4 100644
> --- a/savevm.c
> +++ b/savevm.c
> @@ -2224,7 +2224,7 @@ static int bdrv_snapshot_find(BlockDriverState *bs,
> QEMUSnapshotInfo *sn_info,
> /*
> * Deletes snapshots of a given name in all opened images.
> */
> -static int del_existing_snapshots(Monitor *mon, const char *name)
> +static int del_existing_snapshots(const char *name, Error **errp)
> {
> BlockDriverState *bs;
> QEMUSnapshotInfo sn1, *snapshot = &sn1;
> @@ -2237,9 +2237,8 @@ static int del_existing_snapshots(Monitor *mon, const
> char *name)
> {
> ret = bdrv_snapshot_delete(bs, name);
> if (ret < 0) {
> - monitor_printf(mon,
> - "Error while deleting snapshot on '%s'\n",
> - bdrv_get_device_name(bs));
> + error_setg(errp, "error while deleting snapshot on '%s'",
> + bdrv_get_device_name(bs));
> return -1;
> }
> }
Any particular reason for de-capitalizing "Error"?
> @@ -2259,6 +2258,7 @@ void do_savevm(Monitor *mon, const QDict *qdict)
> qemu_timeval tv;
> struct tm tm;
> const char *name = qdict_get_try_str(qdict, "name");
> + Error *local_err = NULL;
>
> /* Verify if there is a device that doesn't support snapshots and is
> writable */
> bs = NULL;
> @@ -2307,7 +2307,9 @@ void do_savevm(Monitor *mon, const QDict *qdict)
> }
>
> /* Delete old snapshots of the same name */
> - if (name && del_existing_snapshots(mon, name) < 0) {
> + if (name && del_existing_snapshots(name, &local_err) < 0) {
> + monitor_printf(mon, "%s\n", error_get_pretty(local_err));
> + error_free(local_err);
> goto the_end;
> }
Could use hmp_handle_error(), except it's static in hmp.c. On the other
hand, even hmp.c doesn't always use it... Luiz, what do you think?
- Re: [Qemu-devel] [PATCH v4 02/11] block: add error parameter to del_existing_snapshots(),
Markus Armbruster <=