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-rw-r--r--block/create.c67
1 files changed, 46 insertions, 21 deletions
diff --git a/block/create.c b/block/create.c
index 8bd8a03719..1a263e4b13 100644
--- a/block/create.c
+++ b/block/create.c
@@ -24,28 +24,51 @@
#include "qemu/osdep.h"
#include "block/block_int.h"
+#include "qemu/job.h"
#include "qapi/qapi-commands-block-core.h"
+#include "qapi/qapi-visit-block-core.h"
+#include "qapi/clone-visitor.h"
#include "qapi/error.h"
-typedef struct BlockdevCreateCo {
+typedef struct BlockdevCreateJob {
+ Job common;
BlockDriver *drv;
BlockdevCreateOptions *opts;
int ret;
- Error **errp;
-} BlockdevCreateCo;
+ Error *err;
+} BlockdevCreateJob;
-static void coroutine_fn bdrv_co_create_co_entry(void *opaque)
+static void blockdev_create_complete(Job *job, void *opaque)
{
- BlockdevCreateCo *cco = opaque;
- cco->ret = cco->drv->bdrv_co_create(cco->opts, cco->errp);
+ BlockdevCreateJob *s = container_of(job, BlockdevCreateJob, common);
+
+ job_completed(job, s->ret, s->err);
}
-void qmp_x_blockdev_create(BlockdevCreateOptions *options, Error **errp)
+static void coroutine_fn blockdev_create_run(void *opaque)
{
+ BlockdevCreateJob *s = opaque;
+
+ job_progress_set_remaining(&s->common, 1);
+ s->ret = s->drv->bdrv_co_create(s->opts, &s->err);
+ job_progress_update(&s->common, 1);
+
+ qapi_free_BlockdevCreateOptions(s->opts);
+ job_defer_to_main_loop(&s->common, blockdev_create_complete, NULL);
+}
+
+static const JobDriver blockdev_create_job_driver = {
+ .instance_size = sizeof(BlockdevCreateJob),
+ .job_type = JOB_TYPE_CREATE,
+ .start = blockdev_create_run,
+};
+
+void qmp_x_blockdev_create(const char *job_id, BlockdevCreateOptions *options,
+ Error **errp)
+{
+ BlockdevCreateJob *s;
const char *fmt = BlockdevDriver_str(options->driver);
BlockDriver *drv = bdrv_find_format(fmt);
- Coroutine *co;
- BlockdevCreateCo cco;
/* If the driver is in the schema, we know that it exists. But it may not
* be whitelisted. */
@@ -55,22 +78,24 @@ void qmp_x_blockdev_create(BlockdevCreateOptions *options, Error **errp)
return;
}
- /* Call callback if it exists */
+ /* Error out if the driver doesn't support .bdrv_co_create */
if (!drv->bdrv_co_create) {
error_setg(errp, "Driver does not support blockdev-create");
return;
}
- cco = (BlockdevCreateCo) {
- .drv = drv,
- .opts = options,
- .ret = -EINPROGRESS,
- .errp = errp,
- };
-
- co = qemu_coroutine_create(bdrv_co_create_co_entry, &cco);
- qemu_coroutine_enter(co);
- while (cco.ret == -EINPROGRESS) {
- aio_poll(qemu_get_aio_context(), true);
+ /* Create the block job */
+ /* TODO Running in the main context. Block drivers need to error out or add
+ * locking when they use a BDS in a different AioContext. */
+ s = job_create(job_id, &blockdev_create_job_driver, NULL,
+ qemu_get_aio_context(), JOB_DEFAULT | JOB_MANUAL_DISMISS,
+ NULL, NULL, errp);
+ if (!s) {
+ return;
}
+
+ s->drv = drv,
+ s->opts = QAPI_CLONE(BlockdevCreateOptions, options),
+
+ job_start(&s->common);
}