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migration/colo: make colo_incoming_co() return void

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Currently, it always returns 0, no need to check the return value at all.
In addition, enter colo coroutine only if migration_incoming_colo_enabled()
is true.
Once the destination side enters the COLO* state, the COLO process will
take over the remaining processes until COLO exits.

Cc: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
[fixed mangled author email address]
Signed-off-by: Fabiano Rosas <farosas@suse.de>
This commit is contained in:
Li Zhijian 2024-05-16 11:45:16 +08:00 • committed by Fabiano Rosas
parent 55a331655d
commit 787ea49e80
4 changed files with 7 additions and 13 deletions
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9
migration/colo.c
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@ -928,16 +928,13 @@ out:
return NULL;
}
int coroutine_fn colo_incoming_co(void)
void coroutine_fn colo_incoming_co(void)
{
MigrationIncomingState *mis = migration_incoming_get_current();
QemuThread th;
assert(bql_locked());
if (!migration_incoming_colo_enabled()) {
return 0;
}
assert(migration_incoming_colo_enabled());
qemu_thread_create(&th, "COLO incoming", colo_process_incoming_thread,
mis, QEMU_THREAD_JOINABLE);
@ -953,6 +950,4 @@ int coroutine_fn colo_incoming_co(void)
/* We hold the global BQL, so it is safe here */
colo_release_ram_cache();
return 0;
}