[PATCH 1/5] blockjob: implement and use block_job_get_aio_context

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

We are going to drop BlockJob.blk. So let's retrieve block job context
from underlying job instead of main node.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
 include/block/blockjob.h | 7 +++++++
 blockdev.c               | 6 +++---
 blockjob.c               | 5 +++++
 qemu-img.c               | 2 +-
 4 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/include/block/blockjob.h b/include/block/blockjob.h
index d200f33c10..3b84805140 100644
--- a/include/block/blockjob.h
+++ b/include/block/blockjob.h
@@ -173,4 +173,11 @@ bool block_job_is_internal(BlockJob *job);
  */
 const BlockJobDriver *block_job_driver(BlockJob *job);
 
+/*
+ * block_job_get_aio_context:
+ *
+ * Returns aio context associated with a block job.
+ */
+AioContext *block_job_get_aio_context(BlockJob *job);
+
 #endif
diff --git a/blockdev.c b/blockdev.c
index 834c2304a1..18ed8cd03f 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -3328,7 +3328,7 @@ static BlockJob *find_block_job(const char *id, AioContext **aio_context,
         return NULL;
     }
 
-    *aio_context = blk_get_aio_context(job->blk);
+    *aio_context = block_job_get_aio_context(job);
     aio_context_acquire(*aio_context);
 
     return job;
@@ -3433,7 +3433,7 @@ void qmp_block_job_finalize(const char *id, Error **errp)
      * automatically acquires the new one), so make sure we release the correct
      * one.
      */
-    aio_context = blk_get_aio_context(job->blk);
+    aio_context = block_job_get_aio_context(job);
     job_unref(&job->job);
     aio_context_release(aio_context);
 }
@@ -3710,7 +3710,7 @@ BlockJobInfoList *qmp_query_block_jobs(Error **errp)
         if (block_job_is_internal(job)) {
             continue;
         }
-        aio_context = blk_get_aio_context(job->blk);
+        aio_context = block_job_get_aio_context(job);
         aio_context_acquire(aio_context);
         value = block_job_query(job, errp);
         aio_context_release(aio_context);
diff --git a/blockjob.c b/blockjob.c
index 2fe1d788ba..2c168b93b0 100644
--- a/blockjob.c
+++ b/blockjob.c
@@ -534,3 +534,8 @@ BlockErrorAction block_job_error_action(BlockJob *job, BlockdevOnError on_err,
     }
     return action;
 }
+
+AioContext *block_job_get_aio_context(BlockJob *job)
+{
+    return job->job.aio_context;
+}
diff --git a/qemu-img.c b/qemu-img.c
index a5993682aa..b690d3ae2b 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -900,7 +900,7 @@ static void common_block_job_cb(void *opaque, int ret)
 
 static void run_block_job(BlockJob *job, Error **errp)
 {
-    AioContext *aio_context = blk_get_aio_context(job->blk);
+    AioContext *aio_context = block_job_get_aio_context(job);
     int ret = 0;
 
     aio_context_acquire(aio_context);
-- 
2.29.2