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[Qemu-devel] [PATCH v17 2/8] Backup: clear all bitmap when doing block c
From: |
Changlong Xie |
Subject: |
[Qemu-devel] [PATCH v17 2/8] Backup: clear all bitmap when doing block checkpoint |
Date: |
Mon, 11 Apr 2016 16:22:53 +0800 |
From: Wen Congyang <address@hidden>
Signed-off-by: Wen Congyang <address@hidden>
Signed-off-by: zhanghailiang <address@hidden>
Signed-off-by: Gonglei <address@hidden>
Signed-off-by: Changlong Xie <address@hidden>
---
block/backup.c | 17 +++++++++++++++++
include/block/block_int.h | 2 ++
2 files changed, 19 insertions(+)
diff --git a/block/backup.c b/block/backup.c
index 491fd14..d5ffc32 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -259,6 +259,23 @@ static void backup_abort(BlockJob *job)
}
}
+void backup_do_checkpoint(BlockJob *job, Error **errp)
+{
+ BackupBlockJob *backup_job = container_of(job, BackupBlockJob, common);
+ int64_t len;
+
+ assert(job->driver->job_type == BLOCK_JOB_TYPE_BACKUP);
+
+ if (backup_job->sync_mode != MIRROR_SYNC_MODE_NONE) {
+ error_setg(errp, "The backup job only supports block checkpoint in"
+ " sync=none mode");
+ return;
+ }
+
+ len = DIV_ROUND_UP(backup_job->common.len, backup_job->cluster_size);
+ bitmap_zero(backup_job->done_bitmap, len);
+}
+
static const BlockJobDriver backup_job_driver = {
.instance_size = sizeof(BackupBlockJob),
.job_type = BLOCK_JOB_TYPE_BACKUP,
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 7e238a0..3c3caa7 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -718,6 +718,8 @@ BdrvChild *bdrv_root_attach_child(BlockDriverState
*child_bs,
const BdrvChildRole *child_role);
void bdrv_root_unref_child(BdrvChild *child);
+void backup_do_checkpoint(BlockJob *job, Error **errp);
+
void blk_dev_change_media_cb(BlockBackend *blk, bool load);
bool blk_dev_has_removable_media(BlockBackend *blk);
bool blk_dev_has_tray(BlockBackend *blk);
--
1.9.3
- [Qemu-devel] [PATCH v17 0/8] Block replication for continuous checkpoints, Changlong Xie, 2016/04/11
- [Qemu-devel] [PATCH v17 1/8] unblock backup operations in backing file, Changlong Xie, 2016/04/11
- [Qemu-devel] [PATCH v17 3/8] Link backup into block core, Changlong Xie, 2016/04/11
- [Qemu-devel] [PATCH v17 5/8] auto complete active commit, Changlong Xie, 2016/04/11
- [Qemu-devel] [PATCH v17 2/8] Backup: clear all bitmap when doing block checkpoint,
Changlong Xie <=
- [Qemu-devel] [PATCH v17 6/8] Introduce new APIs to do replication operation, Changlong Xie, 2016/04/11
- [Qemu-devel] [PATCH v17 8/8] support replication driver in blockdev-add, Changlong Xie, 2016/04/11
- [Qemu-devel] [PATCH v17 4/8] docs: block replication's description, Changlong Xie, 2016/04/11
- [Qemu-devel] [PATCH v17 7/8] Implement new driver for block replication, Changlong Xie, 2016/04/11