On 03/21/2011 10:13 AM, Daniel P. Berrange wrote:
Enhance the QEMU migration monitoring loop, so that it can get a signal to change migration speed on the fly
* src/qemu/qemu_domain.h: Add signal for changing speed on the fly * src/qemu/qemu_driver.c: Wire up virDomainMigrateSetSpeed driver * src/qemu/qemu_migration.c: Support signal for changing speed --- src/qemu/qemu_domain.h | 2 + src/qemu/qemu_driver.c | 51 ++++++++++++++++++++++++++++++++++++++++++++- src/qemu/qemu_migration.c | 11 +++++++++ 3 files changed, 63 insertions(+), 1 deletions(-)
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h index ebb2050..8258900 100644 --- a/src/qemu/qemu_domain.h +++ b/src/qemu/qemu_domain.h @@ -45,10 +45,12 @@ enum qemuDomainJobSignals { QEMU_JOB_SIGNAL_CANCEL = 1 << 0, /* Request job cancellation */ QEMU_JOB_SIGNAL_SUSPEND = 1 << 1, /* Request VM suspend to finish live migration offline */ QEMU_JOB_SIGNAL_MIGRATE_DOWNTIME = 1 << 2, /* Request migration downtime change */ + QEMU_JOB_SIGNAL_MIGRATE_SPEED = 1 << 3, /* Request migration speed change */
Makes it easy to review when you've already got a similar feature to copy from :)
+++ b/src/qemu/qemu_driver.c @@ -6071,6 +6071,55 @@ cleanup: return ret; }
+static int +qemuDomainMigrateSetMaxSpeed(virDomainPtr dom, + unsigned long bandwidth,
Same question as in patch 1 and 2 about whether 'int' is better than 'long' for this parameter. ACK. -- Eric Blake eblake@redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org