linux-user: Use is_error() to avoid warnings and make the code clearer

[qemu.git] / blockjob.c

diff --git a/blockjob.c b/blockjob.c
index 38f18e9ba30d4ea1d856d7a2f98fb5a5b6b424f1..0306533a2e009dee812a0e3fd1d65beacd4aa93b 100644 (file)
--- a/blockjob.c
+++ b/blockjob.c
@@ -103,10 +103,12 @@ static void block_job_attached_aio_context(AioContext *new_context,
                                            void *opaque)
 {
     BlockJob *job = opaque;
+    const JobDriver *drv = job->job.driver;
+    BlockJobDriver *bjdrv = container_of(drv, BlockJobDriver, job_driver);
 
     job->job.aio_context = new_context;
-    if (job->driver->attached_aio_context) {
-        job->driver->attached_aio_context(job, new_context);
+    if (bjdrv->attached_aio_context) {
+        bjdrv->attached_aio_context(job, new_context);
     }
 
     job_resume(&job->job);
@@ -115,10 +117,12 @@ static void block_job_attached_aio_context(AioContext *new_context,
 void block_job_drain(Job *job)
 {
     BlockJob *bjob = container_of(job, BlockJob, job);
+    const JobDriver *drv = job->driver;
+    BlockJobDriver *bjdrv = container_of(drv, BlockJobDriver, job_driver);
 
     blk_drain(bjob->blk);
-    if (bjob->driver->drain) {
-        bjob->driver->drain(bjob);
+    if (bjdrv->drain) {
+        bjdrv->drain(bjob);
     }
 }
 
@@ -201,7 +205,7 @@ bool block_job_is_internal(BlockJob *job)
 
 const BlockJobDriver *block_job_driver(BlockJob *job)
 {
-    return job->driver;
+    return container_of(job->job.driver, BlockJobDriver, job_driver);
 }
 
 /* Assumes the job_mutex is held */
@@ -242,16 +246,6 @@ int64_t block_job_ratelimit_get_delay(BlockJob *job, uint64_t n)
     return ratelimit_calculate_delay(&job->limit, n);
 }
 
-void block_job_progress_update(BlockJob *job, uint64_t done)
-{
-    job->offset += done;
-}
-
-void block_job_progress_set_remaining(BlockJob *job, uint64_t remaining)
-{
-    job->len = job->offset + remaining;
-}
-
 BlockJobInfo *block_job_query(BlockJob *job, Error **errp)
 {
     BlockJobInfo *info;
@@ -263,10 +257,10 @@ BlockJobInfo *block_job_query(BlockJob *job, Error **errp)
     info = g_new0(BlockJobInfo, 1);
     info->type      = g_strdup(job_type_str(&job->job));
     info->device    = g_strdup(job->job.id);
-    info->len       = job->len;
     info->busy      = atomic_read(&job->job.busy);
     info->paused    = job->job.pause_count > 0;
-    info->offset    = job->offset;
+    info->offset    = job->job.progress_current;
+    info->len       = job->job.progress_total;
     info->speed     = job->speed;
     info->io_status = job->iostatus;
     info->ready     = job_is_ready(&job->job),
@@ -296,8 +290,8 @@ static void block_job_event_cancelled(Notifier *n, void *opaque)
 
     qapi_event_send_block_job_cancelled(job_type(&job->job),
                                         job->job.id,
-                                        job->len,
-                                        job->offset,
+                                        job->job.progress_total,
+                                        job->job.progress_current,
                                         job->speed,
                                         &error_abort);
 }
@@ -317,8 +311,8 @@ static void block_job_event_completed(Notifier *n, void *opaque)
 
     qapi_event_send_block_job_completed(job_type(&job->job),
                                         job->job.id,
-                                        job->len,
-                                        job->offset,
+                                        job->job.progress_total,
+                                        job->job.progress_current,
                                         job->speed,
                                         !!msg,
                                         msg,
@@ -338,6 +332,22 @@ static void block_job_event_pending(Notifier *n, void *opaque)
                                       &error_abort);
 }
 
+static void block_job_event_ready(Notifier *n, void *opaque)
+{
+    BlockJob *job = opaque;
+
+    if (block_job_is_internal(job)) {
+        return;
+    }
+
+    qapi_event_send_block_job_ready(job_type(&job->job),
+                                    job->job.id,
+                                    job->job.progress_total,
+                                    job->job.progress_current,
+                                    job->speed, &error_abort);
+}
+
+
 /*
  * API for block job drivers and the block layer.  These functions are
  * declared in blockjob_int.h.
@@ -380,18 +390,19 @@ void *block_job_create(const char *job_id, const BlockJobDriver *driver,
     assert(job->job.driver->user_resume == &block_job_user_resume);
     assert(job->job.driver->drain == &block_job_drain);
 
-    job->driver        = driver;
-    job->blk           = blk;
+    job->blk = blk;
 
     job->finalize_cancelled_notifier.notify = block_job_event_cancelled;
     job->finalize_completed_notifier.notify = block_job_event_completed;
     job->pending_notifier.notify = block_job_event_pending;
+    job->ready_notifier.notify = block_job_event_ready;
 
     notifier_list_add(&job->job.on_finalize_cancelled,
                       &job->finalize_cancelled_notifier);
     notifier_list_add(&job->job.on_finalize_completed,
                       &job->finalize_completed_notifier);
     notifier_list_add(&job->job.on_pending, &job->pending_notifier);
+    notifier_list_add(&job->job.on_ready, &job->ready_notifier);
 
     error_setg(&job->blocker, "block device is in use by block job: %s",
                job_type_str(&job->job));
@@ -433,21 +444,6 @@ void block_job_user_resume(Job *job)
     block_job_iostatus_reset(bjob);
 }
 
-void block_job_event_ready(BlockJob *job)
-{
-    job_state_transition(&job->job, JOB_STATUS_READY);
-
-    if (block_job_is_internal(job)) {
-        return;
-    }
-
-    qapi_event_send_block_job_ready(job_type(&job->job),
-                                    job->job.id,
-                                    job->len,
-                                    job->offset,
-                                    job->speed, &error_abort);
-}
-
 BlockErrorAction block_job_error_action(BlockJob *job, BlockdevOnError on_err,
                                         int is_read, int error)
 {