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60 lines
2.2 KiB
60 lines
2.2 KiB
1 year ago
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From dd6d0eace90285c017ae40cba0ffa95ccd963ebd Mon Sep 17 00:00:00 2001
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From: Leonardo Bras <leobras@redhat.com>
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Date: Tue, 20 Jun 2023 14:51:03 -0300
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Subject: [PATCH 15/15] migration: Disable postcopy + multifd migration
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Leonardo Brás <leobras@redhat.com>
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RH-MergeRequest: 287: migration: Disable postcopy + multifd migration
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RH-Bugzilla: 2169733
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RH-Acked-by: Peter Xu <peterx@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Commit: [1/1] 07d26fbac35b7586fe790304f03d316ed26a4ef2
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Since the introduction of multifd, it's possible to perform a multifd
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migration and finish it using postcopy.
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A bug introduced by yank (fixed on cfc3bcf373) was previously preventing
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a successful use of this migration scenario, and now thing should be
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working on most scenarios.
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But since there is not enough testing/support nor any reported users for
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this scenario, we should disable this combination before it may cause any
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problems for users.
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Suggested-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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Signed-off-by: Leonardo Bras <leobras@redhat.com>
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Acked-by: Peter Xu <peterx@redhat.com>
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Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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Reviewed-by: Juan Quintela <quintela@redhat.com>
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Signed-off-by: Juan Quintela <quintela@redhat.com>
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(cherry picked from commit b405dfff1ea3cf0530b628895b5a7a50dc8c6996)
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[leobras: moves logic from options.c -> migration.c and use cap_list
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instead of new_caps for backward compatibility]
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Signed-off-by: Leonardo Bras <leobras@redhat.com>
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---
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migration/migration.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/migration/migration.c b/migration/migration.c
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index 817170d52d..1ad82e63f0 100644
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--- a/migration/migration.c
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+++ b/migration/migration.c
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@@ -1246,6 +1246,11 @@ static bool migrate_caps_check(bool *cap_list,
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error_setg(errp, "Postcopy is not compatible with ignore-shared");
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return false;
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}
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+
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+ if (cap_list[MIGRATION_CAPABILITY_MULTIFD]) {
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+ error_setg(errp, "Postcopy is not yet compatible with multifd");
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+ return false;
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+ }
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}
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if (cap_list[MIGRATION_CAPABILITY_BACKGROUND_SNAPSHOT]) {
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--
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2.37.3
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