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From b6c1f9ca8eb0ca8f7603ab205c7dc95b9f07b5a0 Mon Sep 17 00:00:00 2001
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Message-Id: <b6c1f9ca8eb0ca8f7603ab205c7dc95b9f07b5a0@dist-git>
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From: Jiri Denemark <jdenemar@redhat.com>
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Date: Mon, 18 Jul 2022 16:01:20 +0200
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Subject: [PATCH] RHEL: qemu_migration: Fix restoring memlock limit on
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destination
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Restoring memory locking limit on the destination host only makes sense
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when migration succeeded as otherwise the QEMU process will be killed
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anyway. Specifically if the migration fails because the process died,
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touching the limit would produce rather unhelpful error message instead
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of the real issue:
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cannot get locked memory limit of process -1: No such file or
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directory
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This patch is RHEL-only caused by misplacing the call to
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qemuDomainSetMaxMemLock when the "qemu_migration: Restore original
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memory locking limit" upstream patch was backported to an older code
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base.
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https://bugzilla.redhat.com/show_bug.cgi?id=2107954
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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---
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src/qemu/qemu_migration.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
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index db5163e993..11f87296d6 100644
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--- a/src/qemu/qemu_migration.c
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+++ b/src/qemu/qemu_migration.c
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@@ -5895,6 +5895,8 @@ qemuMigrationDstFinish(virQEMUDriver *driver,
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*/
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if (inPostCopy)
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g_clear_pointer(&priv->job.completed, qemuDomainJobInfoFree);
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+
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+ qemuDomainSetMaxMemLock(vm, 0, &priv->preMigrationMemlock);
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}
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qemuMigrationParamsReset(driver, vm, QEMU_ASYNC_JOB_MIGRATION_IN,
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@@ -5907,7 +5909,6 @@ qemuMigrationDstFinish(virQEMUDriver *driver,
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cleanup:
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g_clear_pointer(&jobInfo, qemuDomainJobInfoFree);
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virPortAllocatorRelease(port);
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- qemuDomainSetMaxMemLock(vm, 0, &priv->preMigrationMemlock);
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if (priv->mon)
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qemuMonitorSetDomainLog(priv->mon, NULL, NULL, NULL);
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VIR_FREE(priv->origname);
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--
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2.35.1
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