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migration/multifd: Remove sync processing on postcopy

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Multifd never worked with postcopy, at least yet so far.

Remove the sync processing there, because it's confusing, and they should
never appear.  Now if RAM_SAVE_FLAG_MULTIFD_FLUSH is observed, we fail hard
instead of trying to invoke multifd code.

Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20241206224755.1108686-6-peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
This commit is contained in:
Peter Xu 2024-12-06 17:47:53 -05:00 committed by Fabiano Rosas
parent e5f14aa5fe
commit de695b1399
1 changed files with 0 additions and 8 deletions
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8
migration/ram.c
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@ -3772,15 +3772,7 @@ int ram_load_postcopy(QEMUFile *f, int channel)
TARGET_PAGE_SIZE);
}
break;
case RAM_SAVE_FLAG_MULTIFD_FLUSH:
multifd_recv_sync_main();
break;
case RAM_SAVE_FLAG_EOS:
/* normal exit */
if (migrate_multifd() &&
migrate_multifd_flush_after_each_section()) {
multifd_recv_sync_main();
}
break;
default:
error_report("Unknown combination of migration flags: 0x%x"