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block/mirror: Add copy mode QAPI interface

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This patch allows the user to specify whether to use active or only
background mode for mirror block jobs.  Currently, this setting will
remain constant for the duration of the entire block job.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-id: 20180613181823.13618-14-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Max Reitz 2018-06-13 20:18:22 +02:00
parent d06107ade0
commit 481debaa32
4 changed files with 27 additions and 9 deletions
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4
include/block/block_int.h
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@ -1031,6 +1031,7 @@ void commit_active_start(const char *job_id, BlockDriverState *bs,
* @filter_node_name: The node name that should be assigned to the filter
* driver that the mirror job inserts into the graph above @bs. NULL means that
* a node name should be autogenerated.
* @copy_mode: When to trigger writes to the target.
* @errp: Error object.
*
* Start a mirroring operation on @bs. Clusters that are allocated
@ -1044,7 +1045,8 @@ void mirror_start(const char *job_id, BlockDriverState *bs,
MirrorSyncMode mode, BlockMirrorBackingMode backing_mode,
BlockdevOnError on_source_error,
BlockdevOnError on_target_error,
bool unmap, const char *filter_node_name, Error **errp);
bool unmap, const char *filter_node_name,
MirrorCopyMode copy_mode, Error **errp);
/*
* backup_job_create: