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| author | Wen Congyang <wency@cn.fujitsu.com> | 2016-07-27 15:01:43 +0800 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2016-09-13 11:00:56 +0100 |
| commit | 49d3e828f8cf8500918d4579ab6cd9c0f9584d63 (patch) | |
| tree | 19be06d9bf689cde95eaea17ab23ffbc4a355ae2 /block/backup.c | |
| parent | e9d6456e956898ccdd5d112d2e097e58a9d10b58 (diff) | |
| download | qemu-49d3e828f8cf8500918d4579ab6cd9c0f9584d63.tar.gz | |
Backup: clear all bitmap when doing block checkpoint
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Changlong Xie <xiecl.fnst@cn.fujitsu.com>
Signed-off-by: Wang WeiWei <wangww.fnst@cn.fujitsu.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1469602913-20979-3-git-send-email-xiecl.fnst@cn.fujitsu.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block/backup.c')
| -rw-r--r-- | block/backup.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/block/backup.c b/block/backup.c index bb3bb9a9eb..dbe54e2dce 100644 --- a/block/backup.c +++ b/block/backup.c @@ -17,6 +17,7 @@ #include "block/block.h" #include "block/block_int.h" #include "block/blockjob.h" +#include "block/block_backup.h" #include "qapi/error.h" #include "qapi/qmp/qerror.h" #include "qemu/ratelimit.h" @@ -255,6 +256,23 @@ static void backup_attached_aio_context(BlockJob *job, AioContext *aio_context) blk_set_aio_context(s->target, aio_context); } +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, |