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[Qemu-devel] [PATCH COLO-Frame v9 04/32] migration: Add state records fo
From: |
zhanghailiang |
Subject: |
[Qemu-devel] [PATCH COLO-Frame v9 04/32] migration: Add state records for migration incoming |
Date: |
Wed, 2 Sep 2015 16:22:51 +0800 |
For migration destination, we also need to know its state,
we will use it in COLO.
Here we add a new member 'state' for MigrationIncomingState,
and also use migrate_set_state() to modify its value.
We fix the first parameter of migrate_set_state(), and make it
public.
Signed-off-by: zhanghailiang <address@hidden>
---
include/migration/migration.h | 3 +++
migration/migration.c | 38 +++++++++++++++++++++++---------------
2 files changed, 26 insertions(+), 15 deletions(-)
diff --git a/include/migration/migration.h b/include/migration/migration.h
index 05de3a1..a62068f 100644
--- a/include/migration/migration.h
+++ b/include/migration/migration.h
@@ -50,6 +50,7 @@ typedef QLIST_HEAD(, LoadStateEntry) LoadStateEntry_Head;
struct MigrationIncomingState {
QEMUFile *file;
+ int state;
/* See savevm.c */
LoadStateEntry_Head loadvm_handlers;
};
@@ -82,6 +83,8 @@ struct MigrationState
int64_t dirty_sync_count;
};
+void migrate_set_state(int *state, int old_state, int new_state);
+
void process_incoming_migration(QEMUFile *f);
void qemu_start_incoming_migration(const char *uri, Error **errp);
diff --git a/migration/migration.c b/migration/migration.c
index 593cac0..98133f1 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -89,6 +89,7 @@ MigrationIncomingState
*migration_incoming_state_new(QEMUFile* f)
{
mis_current = g_malloc0(sizeof(MigrationIncomingState));
mis_current->file = f;
+ mis_current->state = MIGRATION_STATUS_NONE;
QLIST_INIT(&mis_current->loadvm_handlers);
return mis_current;
@@ -270,11 +271,13 @@ void qemu_start_incoming_migration(const char *uri, Error
**errp)
static void process_incoming_migration_co(void *opaque)
{
QEMUFile *f = opaque;
+ MigrationIncomingState *mis;
Error *local_err = NULL;
int ret;
- migration_incoming_state_new(f);
- migrate_generate_event(MIGRATION_STATUS_ACTIVE);
+ mis = migration_incoming_state_new(f);
+ migrate_set_state(&mis->state, MIGRATION_STATUS_NONE,
+ MIGRATION_STATUS_ACTIVE);
ret = qemu_loadvm_state(f);
qemu_fclose(f);
@@ -282,12 +285,14 @@ static void process_incoming_migration_co(void *opaque)
migration_incoming_state_destroy();
if (ret < 0) {
- migrate_generate_event(MIGRATION_STATUS_FAILED);
+ migrate_set_state(&mis->state, MIGRATION_STATUS_ACTIVE,
+ MIGRATION_STATUS_FAILED);
error_report("load of migration failed: %s", strerror(-ret));
migrate_decompress_threads_join();
exit(EXIT_FAILURE);
}
- migrate_generate_event(MIGRATION_STATUS_COMPLETED);
+ migrate_set_state(&mis->state, MIGRATION_STATUS_ACTIVE,
+ MIGRATION_STATUS_COMPLETED);
qemu_announce_self();
/* Make sure all file formats flush their mutable metadata */
@@ -543,9 +548,9 @@ void qmp_migrate_set_parameters(bool has_compress_level,
/* shared migration helpers */
-static void migrate_set_state(MigrationState *s, int old_state, int new_state)
+void migrate_set_state(int *state, int old_state, int new_state)
{
- if (atomic_cmpxchg(&s->state, old_state, new_state) == old_state) {
+ if (atomic_cmpxchg(state, old_state, new_state) == old_state) {
trace_migrate_set_state(new_state);
migrate_generate_event(new_state);
}
@@ -574,7 +579,7 @@ static void migrate_fd_cleanup(void *opaque)
if (s->state != MIGRATION_STATUS_COMPLETED) {
qemu_savevm_state_cancel();
if (s->state == MIGRATION_STATUS_CANCELLING) {
- migrate_set_state(s, MIGRATION_STATUS_CANCELLING,
+ migrate_set_state(&s->state, MIGRATION_STATUS_CANCELLING,
MIGRATION_STATUS_CANCELLED);
}
}
@@ -586,7 +591,8 @@ void migrate_fd_error(MigrationState *s)
{
trace_migrate_fd_error();
assert(s->file == NULL);
- migrate_set_state(s, MIGRATION_STATUS_SETUP, MIGRATION_STATUS_FAILED);
+ migrate_set_state(&s->state, MIGRATION_STATUS_SETUP,
+ MIGRATION_STATUS_FAILED);
notifier_list_notify(&migration_state_notifiers, s);
}
@@ -602,7 +608,7 @@ static void migrate_fd_cancel(MigrationState *s)
old_state != MIGRATION_STATUS_ACTIVE) {
break;
}
- migrate_set_state(s, old_state, MIGRATION_STATUS_CANCELLING);
+ migrate_set_state(&s->state, old_state, MIGRATION_STATUS_CANCELLING);
} while (s->state != MIGRATION_STATUS_CANCELLING);
/*
@@ -670,7 +676,7 @@ static MigrationState *migrate_init(const MigrationParams
*params)
s->parameters[MIGRATION_PARAMETER_DECOMPRESS_THREADS] =
decompress_thread_count;
s->bandwidth_limit = bandwidth_limit;
- migrate_set_state(s, MIGRATION_STATUS_NONE, MIGRATION_STATUS_SETUP);
+ migrate_set_state(&s->state, MIGRATION_STATUS_NONE,
MIGRATION_STATUS_SETUP);
s->total_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
return s;
@@ -768,7 +774,8 @@ void qmp_migrate(const char *uri, bool has_blk, bool blk,
} else {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "uri",
"a valid migration protocol");
- migrate_set_state(s, MIGRATION_STATUS_SETUP, MIGRATION_STATUS_FAILED);
+ migrate_set_state(&s->state, MIGRATION_STATUS_SETUP,
+ MIGRATION_STATUS_FAILED);
return;
}
@@ -948,7 +955,8 @@ static void *migration_thread(void *opaque)
qemu_savevm_state_begin(s->file, &s->params);
s->setup_time = qemu_clock_get_ms(QEMU_CLOCK_HOST) - setup_start;
- migrate_set_state(s, MIGRATION_STATUS_SETUP, MIGRATION_STATUS_ACTIVE);
+ migrate_set_state(&s->state, MIGRATION_STATUS_SETUP,
+ MIGRATION_STATUS_ACTIVE);
while (s->state == MIGRATION_STATUS_ACTIVE) {
int64_t current_time;
@@ -978,13 +986,13 @@ static void *migration_thread(void *opaque)
qemu_mutex_unlock_iothread();
if (ret < 0) {
- migrate_set_state(s, MIGRATION_STATUS_ACTIVE,
+ migrate_set_state(&s->state, MIGRATION_STATUS_ACTIVE,
MIGRATION_STATUS_FAILED);
break;
}
if (!qemu_file_get_error(s->file)) {
- migrate_set_state(s, MIGRATION_STATUS_ACTIVE,
+ migrate_set_state(&s->state, MIGRATION_STATUS_ACTIVE,
MIGRATION_STATUS_COMPLETED);
break;
}
@@ -992,7 +1000,7 @@ static void *migration_thread(void *opaque)
}
if (qemu_file_get_error(s->file)) {
- migrate_set_state(s, MIGRATION_STATUS_ACTIVE,
+ migrate_set_state(&s->state, MIGRATION_STATUS_ACTIVE,
MIGRATION_STATUS_FAILED);
break;
}
--
1.8.3.1
- [Qemu-devel] [PATCH COLO-Frame v9 00/32] COarse-grain LOck-stepping(COLO) Virtual Machines for Non-stop Service (FT), zhanghailiang, 2015/09/02
- [Qemu-devel] [PATCH COLO-Frame v9 03/32] COLO: migrate colo related info to slave, zhanghailiang, 2015/09/02
- [Qemu-devel] [PATCH COLO-Frame v9 01/32] configure: Add parameter for configure to enable/disable COLO support, zhanghailiang, 2015/09/02
- [Qemu-devel] [PATCH COLO-Frame v9 05/32] migration: Integrate COLO checkpoint process into migration, zhanghailiang, 2015/09/02
- [Qemu-devel] [PATCH COLO-Frame v9 04/32] migration: Add state records for migration incoming,
zhanghailiang <=
- [Qemu-devel] [PATCH COLO-Frame v9 09/32] COLO: Implement colo checkpoint protocol, zhanghailiang, 2015/09/02
- [Qemu-devel] [PATCH COLO-Frame v9 11/32] QEMUSizedBuffer: Introduce two help functions for qsb, zhanghailiang, 2015/09/02
- [Qemu-devel] [PATCH COLO-Frame v9 12/32] COLO: Save PVM state to secondary side when do checkpoint, zhanghailiang, 2015/09/02
- [Qemu-devel] [PATCH COLO-Frame v9 08/32] COLO/migration: establish a new communication path from destination to source, zhanghailiang, 2015/09/02
- [Qemu-devel] [PATCH COLO-Frame v9 02/32] migration: Introduce capability 'colo' to migration, zhanghailiang, 2015/09/02
- [Qemu-devel] [PATCH COLO-Frame v9 06/32] migration: Integrate COLO checkpoint process into loadvm, zhanghailiang, 2015/09/02
- [Qemu-devel] [PATCH COLO-Frame v9 16/32] COLO: synchronize PVM's state to SVM periodically, zhanghailiang, 2015/09/02
- [Qemu-devel] [PATCH COLO-Frame v9 14/32] COLO: Load VMState into qsb before restore it, zhanghailiang, 2015/09/02
- [Qemu-devel] [PATCH COLO-Frame v9 15/32] COLO: Flush PVM's cached RAM into SVM's memory, zhanghailiang, 2015/09/02
- [Qemu-devel] [PATCH COLO-Frame v9 07/32] migration: Rename the'file' member of MigrationState and MigrationIncomingState, zhanghailiang, 2015/09/02