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Re: [Qemu-devel] [PATCH] block-migration: deprecate block migration for
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] [PATCH] block-migration: deprecate block migration for the 1.2 release |
Date: |
Tue, 14 Aug 2012 15:48:37 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120605 Thunderbird/13.0 |
Am 14.08.2012 15:32, schrieb Anthony Liguori:
> To be replaced with live block copy.
>
> Signed-off-by: Anthony Liguori <address@hidden>
Might be worth adding a deprecation note in qapi-schema.json.
> ---
> migration.c | 9 +++++++++
> 1 files changed, 9 insertions(+), 0 deletions(-)
>
> diff --git a/migration.c b/migration.c
> index 653a3c1..babccf4 100644
> --- a/migration.c
> +++ b/migration.c
> @@ -482,10 +482,19 @@ void qmp_migrate(const char *uri, bool has_blk, bool
> blk,
> MigrationParams params;
> const char *p;
> int ret;
> + static bool suppress_deprecation_message;
>
> params.blk = blk;
> params.shared = inc;
>
> + if (blk && !suppress_deprecation_message) {
Hm, it's consistent with when we start block migration, but has_blk is
completely ignored for that and blk seems to be uninitialised if
!has_blk. I think this needs to be fixed. (Why does qmp-marshal.c even
compile when it can use blk uninitialised...?)
Kevin
> + qerror_report(ERROR_CLASS_GENERIC_ERROR,
> + "Block migration is deprecated. "
> + "See http://wiki.qemu.org/Features/LiveBlockCopy "
> + "for an alternative syntax.");
> + suppress_deprecation_message = true;
> + }
> +
> if (s->state == MIG_STATE_ACTIVE) {
> error_set(errp, QERR_MIGRATION_ACTIVE);
> return;
>
Re: [Qemu-devel] [PATCH] block-migration: deprecate block migration for the 1.2 release, Stefan Hajnoczi, 2012/08/14