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migration: block incoming colo when capability is disabled

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We generally require same set of capabilities on source and target.
Let's require x-colo capability to use COLO on target.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Lukas Straub <lukasstraub2@web.de>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Message-Id: <20230428194928.1426370-11-vsementsov@yandex-team.ru>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2023-04-28 22:49:28 +03:00 • committed by Juan Quintela
parent d70178a88f
commit 121ccedc2b
2 changed files with 7 additions and 0 deletions
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6
migration/migration.c
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@ -398,6 +398,12 @@ int migration_incoming_enable_colo(void)
return -ENOTSUP;
#endif
if (!migrate_colo()) {
error_report("ENABLE_COLO command come in migration stream, but c-colo "
"capability is not set");
return -EINVAL;
}
if (ram_block_discard_disable(true)) {
error_report("COLO: cannot disable RAM discard");
return -EBUSY;