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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
2018-06-18 17:05:16 +02:00
parent d06107ade0
commit 481debaa32
4 changed files with 27 additions and 9 deletions
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blockdev.c
+8 -1
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@@ -3586,6 +3586,7 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
bool has_unmap, bool unmap,
bool has_filter_node_name,
const char *filter_node_name,
bool has_copy_mode, MirrorCopyMode copy_mode,
Error **errp)
{
@@ -3610,6 +3611,9 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
if (!has_filter_node_name) {
filter_node_name = NULL;
}
if (!has_copy_mode) {
copy_mode = MIRROR_COPY_MODE_BACKGROUND;
}
if (granularity != 0 && (granularity < 512 || granularity > 1048576 * 64)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "granularity",
@@ -3640,7 +3644,7 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
has_replaces ? replaces : NULL,
speed, granularity, buf_size, sync, backing_mode,
on_source_error, on_target_error, unmap, filter_node_name,
errp);
copy_mode, errp);
}
void qmp_drive_mirror(DriveMirror *arg, Error **errp)
@@ -3786,6 +3790,7 @@ void qmp_drive_mirror(DriveMirror *arg, Error **errp)
arg->has_on_target_error, arg->on_target_error,
arg->has_unmap, arg->unmap,
false, NULL,
arg->has_copy_mode, arg->copy_mode,
&local_err);
bdrv_unref(target_bs);
error_propagate(errp, local_err);
@@ -3806,6 +3811,7 @@ void qmp_blockdev_mirror(bool has_job_id, const char *job_id,
BlockdevOnError on_target_error,
bool has_filter_node_name,
const char *filter_node_name,
bool has_copy_mode, MirrorCopyMode copy_mode,
Error **errp)
{
BlockDriverState *bs;
@@ -3838,6 +3844,7 @@ void qmp_blockdev_mirror(bool has_job_id, const char *job_id,
has_on_target_error, on_target_error,
true, true,
has_filter_node_name, filter_node_name,
has_copy_mode, copy_mode,
&local_err);
error_propagate(errp, local_err);