job: Move coroutine and related code to Job

This commit moves some core functions for dealing with the job coroutine
from BlockJob to Job. This includes primarily entering the coroutine
(both for the first and reentering) and yielding explicitly and at pause
points.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>

5 files changed, 17 insertions, 17 deletions

diff --git a/block/backup.c b/block/backup.c
index 22dd368..7d9aad9 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -528,8 +528,8 @@ static const BlockJobDriver backup_job_driver = {
         .instance_size          = sizeof(BackupBlockJob),
         .job_type               = JOB_TYPE_BACKUP,
         .free                   = block_job_free,
+        .start                  = backup_run,
     },
-    .start                  = backup_run,
     .commit                 = backup_commit,
     .abort                  = backup_abort,
     .clean                  = backup_clean,
diff --git a/block/commit.c b/block/commit.c
index d326766..2fbc310 100644
--- a/block/commit.c
+++ b/block/commit.c
@@ -220,8 +220,8 @@ static const BlockJobDriver commit_job_driver = {
         .instance_size = sizeof(CommitBlockJob),
         .job_type      = JOB_TYPE_COMMIT,
         .free          = block_job_free,
+        .start         = commit_run,
     },
-    .start         = commit_run,
 };
 
 static int coroutine_fn bdrv_commit_top_preadv(BlockDriverState *bs,
@@ -371,7 +371,7 @@ void commit_start(const char *job_id, BlockDriverState *bs,
     s->on_error = on_error;
 
     trace_commit_start(bs, base, top, s);
-    block_job_start(&s->common);
+    job_start(&s->common.job);
     return;
 
 fail:
diff --git a/block/mirror.c b/block/mirror.c
index 90d4ac9..95fc807 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -126,7 +126,7 @@ static void mirror_iteration_done(MirrorOp *op, int ret)
     g_free(op);
 
     if (s->waiting_for_io) {
-        qemu_coroutine_enter(s->common.co);
+        qemu_coroutine_enter(s->common.job.co);
     }
 }
 
@@ -345,7 +345,7 @@ static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s)
         mirror_wait_for_io(s);
     }
 
-    block_job_pause_point(&s->common);
+    job_pause_point(&s->common.job);
 
     /* Find the number of consective dirty chunks following the first dirty
      * one, and wait for in flight requests in them. */
@@ -597,7 +597,7 @@ static void mirror_throttle(MirrorBlockJob *s)
         s->last_pause_ns = now;
         block_job_sleep_ns(&s->common, 0);
     } else {
-        block_job_pause_point(&s->common);
+        job_pause_point(&s->common.job);
     }
 }
 
@@ -786,7 +786,7 @@ static void coroutine_fn mirror_run(void *opaque)
             goto immediate_exit;
         }
 
-        block_job_pause_point(&s->common);
+        job_pause_point(&s->common.job);
 
         cnt = bdrv_get_dirty_count(s->dirty_bitmap);
         /* cnt is the number of dirty bytes remaining and s->bytes_in_flight is
@@ -957,9 +957,9 @@ static void mirror_complete(BlockJob *job, Error **errp)
     block_job_enter(&s->common);
 }
 
-static void mirror_pause(BlockJob *job)
+static void mirror_pause(Job *job)
 {
-    MirrorBlockJob *s = container_of(job, MirrorBlockJob, common);
+    MirrorBlockJob *s = container_of(job, MirrorBlockJob, common.job);
 
     mirror_wait_for_all_io(s);
 }
@@ -991,10 +991,10 @@ static const BlockJobDriver mirror_job_driver = {
         .instance_size          = sizeof(MirrorBlockJob),
         .job_type               = JOB_TYPE_MIRROR,
         .free                   = block_job_free,
+        .start                  = mirror_run,
+        .pause                  = mirror_pause,
     },
-    .start                  = mirror_run,
     .complete               = mirror_complete,
-    .pause                  = mirror_pause,
     .attached_aio_context   = mirror_attached_aio_context,
     .drain                  = mirror_drain,
 };
@@ -1004,10 +1004,10 @@ static const BlockJobDriver commit_active_job_driver = {
         .instance_size          = sizeof(MirrorBlockJob),
         .job_type               = JOB_TYPE_COMMIT,
         .free                   = block_job_free,
+        .start                  = mirror_run,
+        .pause                  = mirror_pause,
     },
-    .start                  = mirror_run,
     .complete               = mirror_complete,
-    .pause                  = mirror_pause,
     .attached_aio_context   = mirror_attached_aio_context,
     .drain                  = mirror_drain,
 };
@@ -1244,7 +1244,7 @@ static void mirror_start_job(const char *job_id, BlockDriverState *bs,
     }
 
     trace_mirror_start(bs, s, opaque);
-    block_job_start(&s->common);
+    job_start(&s->common.job);
     return;
 
 fail:
diff --git a/block/replication.c b/block/replication.c
index 48148b8..9ed6e0f 100644
--- a/block/replication.c
+++ b/block/replication.c
@@ -576,7 +576,7 @@ static void replication_start(ReplicationState *rs, ReplicationMode mode,
             aio_context_release(aio_context);
             return;
         }
-        block_job_start(job);
+        job_start(&job->job);
         break;
     default:
         aio_context_release(aio_context);
diff --git a/block/stream.c b/block/stream.c
index 0bba816..6d8b7b6 100644
--- a/block/stream.c
+++ b/block/stream.c
@@ -213,8 +213,8 @@ static const BlockJobDriver stream_job_driver = {
         .instance_size = sizeof(StreamBlockJob),
         .job_type      = JOB_TYPE_STREAM,
         .free          = block_job_free,
+        .start         = stream_run,
     },
-    .start         = stream_run,
 };
 
 void stream_start(const char *job_id, BlockDriverState *bs,
@@ -262,7 +262,7 @@ void stream_start(const char *job_id, BlockDriverState *bs,
 
     s->on_error = on_error;
     trace_stream_start(bs, base, s);
-    block_job_start(&s->common);
+    job_start(&s->common.job);
     return;
 
 fail: