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[Qemu-devel] [PULL 18/25] COLO: quick failover process by kick COLO thre
From: |
Jason Wang |
Subject: |
[Qemu-devel] [PULL 18/25] COLO: quick failover process by kick COLO thread |
Date: |
Wed, 26 Sep 2018 11:16:43 +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>
Reviewed-by: Dr. David Alan Gilbert <address@hidden>
Signed-off-by: Jason Wang <address@hidden>
---
migration/colo.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/migration/colo.c b/migration/colo.c
index 57a85424fc..956ac236b7 100644
--- a/migration/colo.c
+++ b/migration/colo.c
@@ -131,6 +131,11 @@ 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(),
@@ -539,6 +544,9 @@ 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;
--
2.17.1
- [Qemu-devel] [PULL 00/25] Net patches, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 25/25] e1000: indicate dropped packets in HW counters, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 24/25] net: ignore packet size greater than INT_MAX, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 23/25] pcnet: fix possible buffer overflow, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 22/25] rtl8139: fix possible out of bound access, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 19/25] docs: Add COLO status diagram to COLO-FT.txt, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 20/25] clean up callback when del virtqueue, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 14/25] COLO: flush host dirty ram from cache, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 21/25] ne2000: fix possible out of bound access in ne2000_receive, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 17/25] COLO: notify net filters about checkpoint/failover event, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 18/25] COLO: quick failover process by kick COLO thread,
Jason Wang <=
- [Qemu-devel] [PULL 13/25] savevm: split the process of different stages for loadvm/savevm, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 15/25] filter: Add handle_event method for NetFilterClass, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 11/25] qapi/migration.json: Rename COLO unknown mode to none mode., Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 05/25] COLO: Add block replication into colo process, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 07/25] COLO: Load dirty pages into SVM's RAM cache firstly, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 16/25] filter-rewriter: handle checkpoint and failover event, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 12/25] qapi: Add new command to query colo status, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 10/25] qmp event: Add COLO_EXIT event to notify users while exited COLO, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 09/25] COLO: Flush memory data from ram cache, Jason Wang, 2018/09/25
- [Qemu-devel] [PULL 08/25] ram/COLO: Record the dirty pages that SVM received, Jason Wang, 2018/09/25