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migration: Add cleanup hook for inwards migration

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Add a cleanup hook for incoming migration that gets called
at the end as a way for a transport to allow cleanup.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210421112834.107651-4-dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2021-04-21 12:28:32 +01:00
parent 5b6116d326
commit 1df6ddb43b
2 changed files with 7 additions and 0 deletions
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3
migration/migration.c
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@ -280,6 +280,9 @@ void migration_incoming_state_destroy(void)
g_array_free(mis->postcopy_remote_fds, TRUE);
mis->postcopy_remote_fds = NULL;
}
if (mis->transport_cleanup) {
mis->transport_cleanup(mis->transport_data);
}
qemu_event_reset(&mis->main_thread_load_event);

4
migration/migration.h
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@ -49,6 +49,10 @@ struct PostcopyBlocktimeContext;
struct MigrationIncomingState {
QEMUFile *from_src_file;
/* A hook to allow cleanup at the end of incoming migration */
void *transport_data;
void (*transport_cleanup)(void *data);
/*
* Free at the start of the main state load, set as the main thread finishes
* loading state.