diff options
Diffstat (limited to 'migration/migration.c')
| -rw-r--r-- | migration/migration.c | 79 |
1 files changed, 50 insertions, 29 deletions
diff --git a/migration/migration.c b/migration/migration.c index 8a607fe1e2..c49e9dc035 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -823,6 +823,25 @@ bool migration_is_setup_or_active(int state) } } +static void populate_time_info(MigrationInfo *info, MigrationState *s) +{ + info->has_status = true; + info->has_setup_time = true; + info->setup_time = s->setup_time; + if (s->state == MIGRATION_STATUS_COMPLETED) { + info->has_total_time = true; + info->total_time = s->total_time; + info->has_downtime = true; + info->downtime = s->downtime; + } else { + info->has_total_time = true; + info->total_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) - + s->start_time; + info->has_expected_downtime = true; + info->expected_downtime = s->expected_downtime; + } +} + static void populate_ram_info(MigrationInfo *info, MigrationState *s) { info->has_ram = true; @@ -908,16 +927,8 @@ static void fill_source_migration_info(MigrationInfo *info) case MIGRATION_STATUS_DEVICE: case MIGRATION_STATUS_POSTCOPY_PAUSED: case MIGRATION_STATUS_POSTCOPY_RECOVER: - /* TODO add some postcopy stats */ - info->has_status = true; - info->has_total_time = true; - info->total_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) - - s->start_time; - info->has_expected_downtime = true; - info->expected_downtime = s->expected_downtime; - info->has_setup_time = true; - info->setup_time = s->setup_time; - + /* TODO add some postcopy stats */ + populate_time_info(info, s); populate_ram_info(info, s); populate_disk_info(info); break; @@ -926,14 +937,7 @@ static void fill_source_migration_info(MigrationInfo *info) /* TODO: display COLO specific information (checkpoint info etc.) */ break; case MIGRATION_STATUS_COMPLETED: - info->has_status = true; - info->has_total_time = true; - info->total_time = s->total_time; - info->has_downtime = true; - info->downtime = s->downtime; - info->has_setup_time = true; - info->setup_time = s->setup_time; - + populate_time_info(info, s); populate_ram_info(info, s); break; case MIGRATION_STATUS_FAILED: @@ -1695,7 +1699,6 @@ void migrate_init(MigrationState *s) * parameters/capabilities that the user set, and * locks. */ - s->bytes_xfer = 0; s->cleanup_bh = 0; s->to_dst_file = NULL; s->state = MIGRATION_STATUS_NONE; @@ -1908,6 +1911,11 @@ static bool migrate_prepare(MigrationState *s, bool blk, bool blk_inc, } migrate_init(s); + /* + * set ram_counters memory to zero for a + * new migration + */ + memset(&ram_counters, 0, sizeof(ram_counters)); return true; } @@ -2963,6 +2971,7 @@ static MigThrError migration_detect_error(MigrationState *s) { int ret; int state = s->state; + Error *local_error = NULL; if (state == MIGRATION_STATUS_CANCELLING || state == MIGRATION_STATUS_CANCELLED) { @@ -2971,13 +2980,18 @@ static MigThrError migration_detect_error(MigrationState *s) } /* Try to detect any file errors */ - ret = qemu_file_get_error(s->to_dst_file); - + ret = qemu_file_get_error_obj(s->to_dst_file, &local_error); if (!ret) { /* Everything is fine */ + assert(!local_error); return MIG_THR_ERR_NONE; } + if (local_error) { + migrate_set_error(s, local_error); + error_free(local_error); + } + if (state == MIGRATION_STATUS_POSTCOPY_ACTIVE && ret == -EIO) { /* * For postcopy, we allow the network to be down for a @@ -3025,6 +3039,17 @@ static void migration_calculate_complete(MigrationState *s) } } +static void update_iteration_initial_status(MigrationState *s) +{ + /* + * Update these three fields at the same time to avoid mismatch info lead + * wrong speed calculation. + */ + s->iteration_start_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME); + s->iteration_initial_bytes = migration_total_bytes(s); + s->iteration_initial_pages = ram_get_total_transferred_pages(); +} + static void migration_update_counters(MigrationState *s, int64_t current_time) { @@ -3060,9 +3085,7 @@ static void migration_update_counters(MigrationState *s, qemu_file_reset_rate_limit(s->to_dst_file); - s->iteration_start_time = current_time; - s->iteration_initial_bytes = current_bytes; - s->iteration_initial_pages = ram_get_total_transferred_pages(); + update_iteration_initial_status(s); trace_migrate_transferred(transferred, time_spent, bandwidth, s->threshold_size); @@ -3093,8 +3116,7 @@ static MigIterateState migration_iteration_run(MigrationState *s) if (pending_size && pending_size >= s->threshold_size) { /* Still a significant amount to transfer */ - if (migrate_postcopy() && !in_postcopy && - pend_pre <= s->threshold_size && + if (!in_postcopy && pend_pre <= s->threshold_size && atomic_read(&s->start_postcopy)) { if (postcopy_start(s)) { error_report("%s: postcopy failed to start", __func__); @@ -3186,7 +3208,7 @@ static void *migration_thread(void *opaque) rcu_register_thread(); object_ref(OBJECT(s)); - s->iteration_start_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME); + update_iteration_initial_status(s); qemu_savevm_state_header(s->to_dst_file); @@ -3251,8 +3273,7 @@ static void *migration_thread(void *opaque) * the local variables. This is important to avoid * breaking transferred_bytes and bandwidth calculation */ - s->iteration_start_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME); - s->iteration_initial_bytes = 0; + update_iteration_initial_status(s); } current_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME); |