block_job_unref(job);
}
+void block_job_add_bdrv(BlockJob *job, BlockDriverState *bs)
+{
+ job->nodes = g_slist_prepend(job->nodes, bs);
+ bdrv_ref(bs);
+ bdrv_op_block_all(bs, job->blocker);
+}
+
void *block_job_create(const char *job_id, const BlockJobDriver *driver,
BlockDriverState *bs, int64_t speed,
BlockCompletionFunc *cb, void *opaque, Error **errp)
job = g_malloc0(driver->instance_size);
error_setg(&job->blocker, "block device is in use by block job: %s",
BlockJobType_lookup[driver->job_type]);
- bdrv_op_block_all(bs, job->blocker);
+ block_job_add_bdrv(job, bs);
bdrv_op_unblock(bs, BLOCK_OP_TYPE_DATAPLANE, job->blocker);
job->driver = driver;
void block_job_unref(BlockJob *job)
{
if (--job->refcnt == 0) {
+ GSList *l;
BlockDriverState *bs = blk_bs(job->blk);
bs->job = NULL;
- bdrv_op_unblock_all(bs, job->blocker);
+ for (l = job->nodes; l; l = l->next) {
+ bs = l->data;
+ bdrv_op_unblock_all(bs, job->blocker);
+ bdrv_unref(bs);
+ }
+ g_slist_free(job->nodes);
blk_remove_aio_context_notifier(job->blk,
block_job_attached_aio_context,
block_job_detach_aio_context, job);
/** Block other operations when block job is running */
Error *blocker;
+ /** BlockDriverStates that are involved in this block job */
+ GSList *nodes;
+
/** The opaque value that is passed to the completion function. */
void *opaque;
BlockCompletionFunc *cb, void *opaque, Error **errp);
/**
+ * block_job_add_bdrv:
+ * @job: A block job
+ * @bs: A BlockDriverState that is involved in @job
+ *
+ * Add @bs to the list of BlockDriverState that are involved in
+ * @job. This means that all operations will be blocked on @bs while
+ * @job exists.
+ */
+void block_job_add_bdrv(BlockJob *job, BlockDriverState *bs);
+
+/**
* block_job_sleep_ns:
* @job: The job that calls the function.
* @clock: The clock to sleep on.