[PATCH v4 07/24] replay: Fix migration use of clock

[Nicholas Piggin]

Migration reads host clocks when not holding the replay_mutex, which
asserts when recording a trace. It seems that these migration times
should be host times like other statistics in MigrationState. These
do not require the replay_mutex.

Signed-off-by: Nicholas Piggin <npig...@gmail.com>
---
 migration/migration.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/migration/migration.c b/migration/migration.c
index a49fcd53ee..86093b34bf 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -3405,7 +3405,7 @@ static void *migration_thread(void *opaque)
 {
     MigrationState *s = opaque;
     MigrationThread *thread = NULL;
-    int64_t setup_start = qemu_clock_get_ms(QEMU_CLOCK_HOST);
+    int64_t setup_start = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
     MigThrError thr_error;
     bool urgent = false;
 
@@ -3457,7 +3457,7 @@ static void *migration_thread(void *opaque)
     qemu_savevm_wait_unplug(s, MIGRATION_STATUS_SETUP,
                                MIGRATION_STATUS_ACTIVE);
 
-    s->setup_time = qemu_clock_get_ms(QEMU_CLOCK_HOST) - setup_start;
+    s->setup_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) - setup_start;
 
     trace_migration_thread_setup_complete();
 
@@ -3536,7 +3536,7 @@ static void *bg_migration_thread(void *opaque)
 
     migration_rate_set(RATE_LIMIT_DISABLED);
 
-    setup_start = qemu_clock_get_ms(QEMU_CLOCK_HOST);
+    setup_start = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
     /*
      * We want to save vmstate for the moment when migration has been
      * initiated but also we want to save RAM content while VM is running.
@@ -3569,7 +3569,7 @@ static void *bg_migration_thread(void *opaque)
     qemu_savevm_wait_unplug(s, MIGRATION_STATUS_SETUP,
                                MIGRATION_STATUS_ACTIVE);
 
-    s->setup_time = qemu_clock_get_ms(QEMU_CLOCK_HOST) - setup_start;
+    s->setup_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) - setup_start;
 
     trace_migration_thread_setup_complete();
 
-- 
2.42.0