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Revert "mirror: Workaround for unexpected iohandler events during completion" 

This reverts commit ab27c3b5e7.

The virtio storage device host notifiers now work with
bdrv_drained_begin/end, so we don't need this hack any more.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Fam Zheng 2016-07-13 13:09:47 +08:00 committed by Michael S. Tsirkin
parent 1c627137c1
commit d4a92a8420
1 changed files with 0 additions and 9 deletions
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9
block/mirror.c
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@ -508,9 +508,6 @@ static void mirror_exit(BlockJob *job, void *opaque)
block_job_completed(&s->common, data->ret);
g_free(data);
bdrv_drained_end(src);
if (qemu_get_aio_context() == bdrv_get_aio_context(src)) {
aio_enable_external(iohandler_get_aio_context());
}
bdrv_unref(src);
}
@ -734,12 +731,6 @@ immediate_exit:
/* Before we switch to target in mirror_exit, make sure data doesn't
* change. */
bdrv_drained_begin(bs);
if (qemu_get_aio_context() == bdrv_get_aio_context(bs)) {
/* FIXME: virtio host notifiers run on iohandler_ctx, therefore the
* above bdrv_drained_end isn't enough to quiesce it. This is ugly, we
* need a block layer API change to achieve this. */
aio_disable_external(iohandler_get_aio_context());
}
block_job_defer_to_main_loop(&s->common, mirror_exit, data);
}