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[Qemu-devel] [PATCH v8 09/14] migration: add is_active_iterate handler
From: |
Vladimir Sementsov-Ogievskiy |
Subject: |
[Qemu-devel] [PATCH v8 09/14] migration: add is_active_iterate handler |
Date: |
Mon, 30 Oct 2017 19:33:04 +0300 |
Only-postcopy savevm states (dirty-bitmap) don't need live iteration, so
to disable them and stop transporting empty sections there is a new
savevm handler.
Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
Reviewed-by: Juan Quintela <address@hidden>
---
include/migration/register.h | 1 +
migration/savevm.c | 5 +++++
2 files changed, 6 insertions(+)
diff --git a/include/migration/register.h b/include/migration/register.h
index 9436a87678..cafbeb64b5 100644
--- a/include/migration/register.h
+++ b/include/migration/register.h
@@ -25,6 +25,7 @@ typedef struct SaveVMHandlers {
/* This runs both outside and inside the iothread lock. */
bool (*is_active)(void *opaque);
bool (*has_postcopy)(void *opaque);
+ bool (*is_active_iterate)(void *opaque);
/* This runs outside the iothread lock in the migration case, and
* within the lock in the savevm case. The callback had better only
diff --git a/migration/savevm.c b/migration/savevm.c
index f6b62cb202..9bbfb3fa1b 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -1026,6 +1026,11 @@ int qemu_savevm_state_iterate(QEMUFile *f, bool postcopy)
continue;
}
}
+ if (se->ops && se->ops->is_active_iterate) {
+ if (!se->ops->is_active_iterate(se->opaque)) {
+ continue;
+ }
+ }
/*
* In the postcopy phase, any device that doesn't know how to
* do postcopy should have saved it's state in the _complete
--
2.11.1
- [Qemu-devel] [PATCH v8 14/14] iotests: add persistent bitmap migration test, (continued)
- [Qemu-devel] [PATCH v8 14/14] iotests: add persistent bitmap migration test, Vladimir Sementsov-Ogievskiy, 2017/10/30
- [Qemu-devel] [PATCH v8 08/14] migration/qemu-file: add qemu_put_counted_string(), Vladimir Sementsov-Ogievskiy, 2017/10/30
- [Qemu-devel] [PATCH v8 13/14] iotests: add dirty bitmap postcopy test, Vladimir Sementsov-Ogievskiy, 2017/10/30
- [Qemu-devel] [PATCH v8 07/14] migration: include migrate_dirty_bitmaps in migrate_postcopy, Vladimir Sementsov-Ogievskiy, 2017/10/30
- [Qemu-devel] [PATCH v8 06/14] qapi: add dirty-bitmaps migration capability, Vladimir Sementsov-Ogievskiy, 2017/10/30
- [Qemu-devel] [PATCH v8 12/14] iotests: add dirty bitmap migration test, Vladimir Sementsov-Ogievskiy, 2017/10/30
- [Qemu-devel] [PATCH v8 05/14] migration: introduce postcopy-only pending, Vladimir Sementsov-Ogievskiy, 2017/10/30
- [Qemu-devel] [PATCH v8 09/14] migration: add is_active_iterate handler,
Vladimir Sementsov-Ogievskiy <=
- [Qemu-devel] [PATCH v8 03/14] block/dirty-bitmap: add bdrv_dirty_bitmap_release_successor, Vladimir Sementsov-Ogievskiy, 2017/10/30
- [Qemu-devel] [PATCH v8 04/14] block/dirty-bitmap: add bdrv_dirty_bitmap_set_frozen, Vladimir Sementsov-Ogievskiy, 2017/10/30
- [Qemu-devel] [PATCH v8 02/14] block/dirty-bitmap: add locked version of bdrv_release_dirty_bitmap, Vladimir Sementsov-Ogievskiy, 2017/10/30
- [Qemu-devel] [PATCH v8 10/14] migration: add postcopy migration of dirty bitmaps, Vladimir Sementsov-Ogievskiy, 2017/10/30
- Re: [Qemu-devel] [PATCH v8 00/14] Dirty bitmaps postcopy migration, no-reply, 2017/10/30
- Re: [Qemu-devel] [PATCH v8 00/14] Dirty bitmaps postcopy migration, Vladimir Sementsov-Ogievskiy, 2017/10/30