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[Qemu-devel] [PATCH V7 17/17] COLO: quick failover process by kick COLO
From: |
Zhang Chen |
Subject: |
[Qemu-devel] [PATCH V7 17/17] COLO: quick failover process by kick COLO thread |
Date: |
Mon, 14 May 2018 11:23:48 +0800 |
From: zhanghailiang <address@hidden>
COLO thread may sleep at qemu_sem_wait(&s->colo_checkpoint_sem),
while failover works begin, It's better to wakeup it to quick
the process.
Signed-off-by: zhanghailiang <address@hidden>
---
migration/colo.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/migration/colo.c b/migration/colo.c
index d67bdc2..a7e0eaa 100644
--- a/migration/colo.c
+++ b/migration/colo.c
@@ -135,6 +135,11 @@ static void primary_vm_do_failover(void)
migrate_set_state(&s->state, MIGRATION_STATUS_COLO,
MIGRATION_STATUS_COMPLETED);
+ /*
+ * kick COLO thread which might wait at
+ * qemu_sem_wait(&s->colo_checkpoint_sem).
+ */
+ colo_checkpoint_notify(migrate_get_current());
/*
* Wake up COLO thread which may blocked in recv() or send(),
@@ -552,6 +557,9 @@ static void colo_process_checkpoint(MigrationState *s)
qemu_sem_wait(&s->colo_checkpoint_sem);
+ if (s->state != MIGRATION_STATUS_COLO) {
+ goto out;
+ }
ret = colo_do_checkpoint_transaction(s, bioc, fb);
if (ret < 0) {
goto out;
--
2.7.4
- Re: [Qemu-devel] [PATCH V7 11/17] qapi: Add new command to query colo status, (continued)
[Qemu-devel] [PATCH V7 12/17] savevm: split the process of different stages for loadvm/savevm, Zhang Chen, 2018/05/14
[Qemu-devel] [PATCH V7 17/17] COLO: quick failover process by kick COLO thread,
Zhang Chen <=
[Qemu-devel] [PATCH V7 04/17] COLO: integrate colo compare with colo frame, Zhang Chen, 2018/05/14
[Qemu-devel] [PATCH V7 16/17] COLO: notify net filters about checkpoint/failover event, Zhang Chen, 2018/05/14
Re: [Qemu-devel] [PATCH V7 00/17] COLO: integrate colo frame with block replication and COLO proxy, no-reply, 2018/05/14