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authorJohn Snow <jsnow@redhat.com>2016-11-08 01:50:36 -0500
committerJeff Cody <jcody@redhat.com>2016-11-14 22:47:34 -0500
commita7815a764c40c9dcf204f666c2d90248095376a8 (patch)
tree6218069fef5d588f66950b1fd11cbfa87b043aca /block/stream.c
parente8a40bf71d606f9f87866fb2461eaed52814b38e (diff)
blockjob: add .start field
Add an explicit start field to specify the entrypoint. We already have ownership of the coroutine itself AND managing the lifetime of the coroutine, let's take control of creation of the coroutine, too. This will allow us to delay creation of the actual coroutine until we know we'll actually start a BlockJob in block_job_start. This avoids the sticky question of how to "un-create" a Coroutine that hasn't been started yet. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-id: 1478587839-9834-4-git-send-email-jsnow@redhat.com Signed-off-by: Jeff Cody <jcody@redhat.com>
Diffstat (limited to 'block/stream.c')
-rw-r--r--block/stream.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/stream.c b/block/stream.c
index b05856bd65..92309ffc2e 100644
--- a/block/stream.c
+++ b/block/stream.c
@@ -218,6 +218,7 @@ static const BlockJobDriver stream_job_driver = {
.instance_size = sizeof(StreamBlockJob),
.job_type = BLOCK_JOB_TYPE_STREAM,
.set_speed = stream_set_speed,
+ .start = stream_run,
};
void stream_start(const char *job_id, BlockDriverState *bs,
@@ -254,7 +255,7 @@ void stream_start(const char *job_id, BlockDriverState *bs,
s->bs_flags = orig_bs_flags;
s->on_error = on_error;
- s->common.co = qemu_coroutine_create(stream_run, s);
+ s->common.co = qemu_coroutine_create(s->common.driver->start, s);
trace_stream_start(bs, base, s, s->common.co);
qemu_coroutine_enter(s->common.co);
}