From: Fabiano Rosas <farosas@suse.de>
To: Peter Xu <peterx@redhat.com>, qemu-devel@nongnu.org
Cc: Prasad Pandit <ppandit@redhat.com>,
Lukas Straub <lukasstraub2@web.de>,
Juraj Marcin <jmarcin@redhat.com>,
peterx@redhat.com
Subject: Re: [PATCH 05/10] migration/colo: Unwrap qemu_savevm_live_state()
Date: Fri, 23 Jan 2026 10:48:53 -0300 [thread overview]
Message-ID: <87cy30igmy.fsf@suse.de> (raw)
In-Reply-To: <20260121223336.3381912-6-peterx@redhat.com>
Peter Xu <peterx@redhat.com> writes:
> It's only used in COLO path and only contains two calls. Unwrap the
> function. It paves way for further reduce special COLO paths on sync.
>
> Signed-off-by: Peter Xu <peterx@redhat.com>
> ---
> migration/savevm.h | 1 -
> migration/colo.c | 3 ++-
> migration/savevm.c | 7 -------
> 3 files changed, 2 insertions(+), 9 deletions(-)
>
> diff --git a/migration/savevm.h b/migration/savevm.h
> index 5d815af742..528607f09e 100644
> --- a/migration/savevm.h
> +++ b/migration/savevm.h
> @@ -64,7 +64,6 @@ void qemu_savevm_send_postcopy_ram_discard(QEMUFile *f, const char *name,
> uint64_t *start_list,
> uint64_t *length_list);
> void qemu_savevm_send_colo_enable(QEMUFile *f);
> -void qemu_savevm_live_state(QEMUFile *f);
> int qemu_save_device_state(QEMUFile *f);
>
> int qemu_loadvm_state(QEMUFile *f, Error **errp);
> diff --git a/migration/colo.c b/migration/colo.c
> index db783f6fa7..e05736ecf0 100644
> --- a/migration/colo.c
> +++ b/migration/colo.c
> @@ -471,7 +471,8 @@ static int colo_do_checkpoint_transaction(MigrationState *s,
> * TODO: We may need a timeout mechanism to prevent COLO process
> * to be blocked here.
> */
> - qemu_savevm_live_state(s->to_dst_file);
> + qemu_savevm_state_complete_precopy(s->to_dst_file, true);
Could maybe drop this complete from the name eventually.
> + qemu_put_byte(s->to_dst_file, QEMU_VM_EOF);
>
> qemu_fflush(fb);
>
> diff --git a/migration/savevm.c b/migration/savevm.c
> index f1cd8c913d..529cf310e0 100644
> --- a/migration/savevm.c
> +++ b/migration/savevm.c
> @@ -1854,13 +1854,6 @@ cleanup:
> return ret;
> }
>
> -void qemu_savevm_live_state(QEMUFile *f)
> -{
> - /* save QEMU_VM_SECTION_END section */
> - qemu_savevm_state_complete_precopy(f, true);
> - qemu_put_byte(f, QEMU_VM_EOF);
> -}
> -
> /* Is a save state entry iterable (e.g. RAM)? */
> static bool qemu_savevm_se_iterable(SaveStateEntry *se)
> {
Reviewed-by: Fabiano Rosas <farosas@suse.de>
next prev parent reply other threads:[~2026-01-23 13:51 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-21 22:33 [PATCH 00/10] migration/colo: small cleanup series Peter Xu
2026-01-21 22:33 ` [PATCH 01/10] migration: Introduce qemu_savevm_send_* helpers Peter Xu
2026-01-23 13:23 ` Fabiano Rosas
2026-01-21 22:33 ` [PATCH 02/10] migration: Use qemu_savevm_send_header() in qemu_save_device_state() Peter Xu
2026-01-23 13:23 ` Fabiano Rosas
2026-01-21 22:33 ` [PATCH 03/10] migration: Remove one migration_in_colo_state() occurance Peter Xu
2026-01-23 13:32 ` Fabiano Rosas
2026-01-26 19:23 ` Peter Xu
2026-01-21 22:33 ` [PATCH 04/10] migration/savevm: Remove SaveStateEntry.is_ram Peter Xu
2026-01-23 13:47 ` Fabiano Rosas
2026-01-26 19:44 ` Peter Xu
2026-01-26 22:00 ` Fabiano Rosas
2026-01-21 22:33 ` [PATCH 05/10] migration/colo: Unwrap qemu_savevm_live_state() Peter Xu
2026-01-23 13:48 ` Fabiano Rosas [this message]
2026-01-26 20:44 ` Peter Xu
2026-01-21 22:33 ` [PATCH 06/10] migration/colo: Remove call to send switchover start event Peter Xu
2026-01-23 13:49 ` Fabiano Rosas
2026-01-21 22:33 ` [PATCH 07/10] colo: Forbid VM resume during checkpointing Peter Xu
2026-01-23 13:49 ` Fabiano Rosas
2026-01-21 22:33 ` [PATCH 08/10] migration/colo: Use the RAM iterable helper directly Peter Xu
2026-01-23 14:00 ` Fabiano Rosas
2026-01-21 22:33 ` [PATCH 09/10] migration/colo: Move qemu_fflush() closer to its user for fb Peter Xu
2026-01-23 14:10 ` Fabiano Rosas
2026-01-26 21:06 ` Peter Xu
2026-01-21 22:33 ` [PATCH 10/10] migration: Drop iterable_only in qemu_savevm_state_complete_precopy Peter Xu
2026-01-23 14:11 ` Fabiano Rosas
2026-01-25 19:29 ` [PATCH 00/10] migration/colo: small cleanup series Lukas Straub
2026-01-26 17:23 ` Peter Xu
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