subject:"\[Qemu\-devel\] \[PATCH v24 03\/12\] Backup\: export interfaces for extra serialization"

Re: [Qemu-devel] [PATCH v24 03/12] Backup: export interfaces for extra serialization

2016-08-04 Thread Stefan Hajnoczi

On Wed, Jul 27, 2016 at 03:01:44PM +0800, Changlong Xie wrote: > Normal backup(sync='none') workflow: > step 1. NBD peformance I/O write from client to server >qcow2_co_writev > bdrv_co_writev > ... >bdrv_aligned_pwritev > notifier_with_return_list_notify -> backup_do_c

[Qemu-devel] [PATCH v24 03/12] Backup: export interfaces for extra serialization

2016-07-27 Thread Changlong Xie

Normal backup(sync='none') workflow: step 1. NBD peformance I/O write from client to server qcow2_co_writev bdrv_co_writev ... bdrv_aligned_pwritev notifier_with_return_list_notify -> backup_do_cow bdrv_driver_pwritev // write new contents step 2. drive-backup s