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mirror: Use BlockBackend for I/O

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This changes the mirror block job to use the job's BlockBackend for
performing its I/O. job->bs isn't used by the mirroring code any more
afterwards.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Kevin Wolf 2016-04-12 16:17:41 +02:00
parent b880481579
commit e253f4b897
2 changed files with 40 additions and 34 deletions
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4
blockdev.c
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@ -3621,9 +3621,9 @@ void qmp_drive_mirror(const char *device, const char *target,
has_on_target_error, on_target_error,
has_unmap, unmap,
&local_err);
bdrv_unref(target_bs);
if (local_err) {
error_propagate(errp, local_err);
bdrv_unref(target_bs);
}
out:
aio_context_release(aio_context);
@ -3667,7 +3667,6 @@ void qmp_blockdev_mirror(const char *device, const char *target,
aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(aio_context);
bdrv_ref(target_bs);
bdrv_set_aio_context(target_bs, aio_context);
blockdev_mirror_common(bs, target_bs,
@ -3681,7 +3680,6 @@ void qmp_blockdev_mirror(const char *device, const char *target,
&local_err);
if (local_err) {
error_propagate(errp, local_err);
bdrv_unref(target_bs);
}
aio_context_release(aio_context);