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migration: Replace QemuSemaphore with QemuEvent

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pause_event can utilize qemu_event_reset() to discard events.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Link: https://lore.kernel.org/r/20250529-event-v5-7-53b285203794@daynix.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Akihiko Odaki 2025-05-29 14:45:56 +09:00 • committed by Paolo Bonzini
parent 5e2312f75a
commit 952691b7a6
2 changed files with 10 additions and 13 deletions
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migration/migration.h
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@ -379,7 +379,7 @@ struct MigrationState {
QemuSemaphore wait_unplug_sem;
/* Migration is paused due to pause-before-switchover */
QemuSemaphore pause_sem;
QemuEvent pause_event;
/* The semaphore is used to notify COLO thread that failover is finished */
QemuSemaphore colo_exit_sem;