return dinfo;
}
+static BlockDriverState *qmp_get_root_bs(const char *name, Error **errp)
+{
+ BlockDriverState *bs;
+
+ bs = bdrv_lookup_bs(name, name, errp);
+ if (bs == NULL) {
+ return NULL;
+ }
+
+ if (!bdrv_is_root_node(bs)) {
+ error_setg(errp, "Need a root block node");
+ return NULL;
+ }
+
+ if (!bdrv_is_inserted(bs)) {
+ error_setg(errp, "Device has no medium");
+ return NULL;
+ }
+
+ return bs;
+}
+
void hmp_commit(Monitor *mon, const QDict *qdict)
{
const char *device = qdict_get_str(qdict, "device");
Error **errp)
{
BlockDriverState *bs;
- BlockBackend *blk;
AioContext *aio_context;
QEMUSnapshotInfo sn;
Error *local_err = NULL;
SnapshotInfo *info = NULL;
int ret;
- blk = blk_by_name(device);
- if (!blk) {
- error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
- "Device '%s' not found", device);
+ bs = qmp_get_root_bs(device, errp);
+ if (!bs) {
return NULL;
}
-
- aio_context = blk_get_aio_context(blk);
+ aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(aio_context);
if (!has_id) {
goto out_aio_context;
}
- if (!blk_is_available(blk)) {
- error_setg(errp, "Device '%s' has no medium", device);
- goto out_aio_context;
- }
- bs = blk_bs(blk);
-
if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_INTERNAL_SNAPSHOT_DELETE, errp)) {
goto out_aio_context;
}
Error *local_err = NULL;
const char *device;
const char *name;
- BlockBackend *blk;
BlockDriverState *bs;
QEMUSnapshotInfo old_sn, *sn;
bool ret;
return;
}
- blk = blk_by_name(device);
- if (!blk) {
- error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
- "Device '%s' not found", device);
+ bs = qmp_get_root_bs(device, errp);
+ if (!bs) {
return;
}
/* AioContext is released in .clean() */
- state->aio_context = blk_get_aio_context(blk);
+ state->aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(state->aio_context);
- if (!blk_is_available(blk)) {
- error_setg(errp, QERR_DEVICE_HAS_NO_MEDIUM, device);
- return;
- }
- bs = blk_bs(blk);
-
state->bs = bs;
bdrv_drained_begin(bs);
BlockJob *job;
} DriveBackupState;
-static void do_drive_backup(const char *job_id, const char *device,
- const char *target, bool has_format,
- const char *format, enum MirrorSyncMode sync,
- bool has_mode, enum NewImageMode mode,
- bool has_speed, int64_t speed,
- bool has_bitmap, const char *bitmap,
- bool has_on_source_error,
- BlockdevOnError on_source_error,
- bool has_on_target_error,
- BlockdevOnError on_target_error,
- BlockJobTxn *txn, Error **errp);
+static void do_drive_backup(DriveBackup *backup, BlockJobTxn *txn,
+ Error **errp);
static void drive_backup_prepare(BlkActionState *common, Error **errp)
{
DriveBackupState *state = DO_UPCAST(DriveBackupState, common, common);
- BlockBackend *blk;
+ BlockDriverState *bs;
DriveBackup *backup;
Error *local_err = NULL;
assert(common->action->type == TRANSACTION_ACTION_KIND_DRIVE_BACKUP);
backup = common->action->u.drive_backup.data;
- blk = blk_by_name(backup->device);
- if (!blk) {
- error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
- "Device '%s' not found", backup->device);
- return;
- }
-
- if (!blk_is_available(blk)) {
- error_setg(errp, QERR_DEVICE_HAS_NO_MEDIUM, backup->device);
+ bs = qmp_get_root_bs(backup->device, errp);
+ if (!bs) {
return;
}
/* AioContext is released in .clean() */
- state->aio_context = blk_get_aio_context(blk);
+ state->aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(state->aio_context);
- bdrv_drained_begin(blk_bs(blk));
- state->bs = blk_bs(blk);
-
- do_drive_backup(backup->has_job_id ? backup->job_id : NULL,
- backup->device, backup->target,
- backup->has_format, backup->format,
- backup->sync,
- backup->has_mode, backup->mode,
- backup->has_speed, backup->speed,
- backup->has_bitmap, backup->bitmap,
- backup->has_on_source_error, backup->on_source_error,
- backup->has_on_target_error, backup->on_target_error,
- common->block_job_txn, &local_err);
+ bdrv_drained_begin(bs);
+ state->bs = bs;
+
+ do_drive_backup(backup, common->block_job_txn, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
AioContext *aio_context;
} BlockdevBackupState;
-static void do_blockdev_backup(const char *job_id, const char *device,
- const char *target, enum MirrorSyncMode sync,
- bool has_speed, int64_t speed,
- bool has_on_source_error,
- BlockdevOnError on_source_error,
- bool has_on_target_error,
- BlockdevOnError on_target_error,
- BlockJobTxn *txn, Error **errp);
+static void do_blockdev_backup(BlockdevBackup *backup, BlockJobTxn *txn,
+ Error **errp);
static void blockdev_backup_prepare(BlkActionState *common, Error **errp)
{
BlockdevBackupState *state = DO_UPCAST(BlockdevBackupState, common, common);
BlockdevBackup *backup;
- BlockBackend *blk, *target;
+ BlockDriverState *bs, *target;
Error *local_err = NULL;
assert(common->action->type == TRANSACTION_ACTION_KIND_BLOCKDEV_BACKUP);
backup = common->action->u.blockdev_backup.data;
- blk = blk_by_name(backup->device);
- if (!blk) {
- error_setg(errp, "Device '%s' not found", backup->device);
- return;
- }
-
- if (!blk_is_available(blk)) {
- error_setg(errp, QERR_DEVICE_HAS_NO_MEDIUM, backup->device);
+ bs = qmp_get_root_bs(backup->device, errp);
+ if (!bs) {
return;
}
- target = blk_by_name(backup->target);
+ target = bdrv_lookup_bs(backup->target, backup->target, errp);
if (!target) {
- error_setg(errp, "Device '%s' not found", backup->target);
return;
}
/* AioContext is released in .clean() */
- state->aio_context = blk_get_aio_context(blk);
- if (state->aio_context != blk_get_aio_context(target)) {
+ state->aio_context = bdrv_get_aio_context(bs);
+ if (state->aio_context != bdrv_get_aio_context(target)) {
state->aio_context = NULL;
error_setg(errp, "Backup between two IO threads is not implemented");
return;
}
aio_context_acquire(state->aio_context);
- state->bs = blk_bs(blk);
+ state->bs = bs;
bdrv_drained_begin(state->bs);
- do_blockdev_backup(backup->has_job_id ? backup->job_id : NULL,
- backup->device, backup->target, backup->sync,
- backup->has_speed, backup->speed,
- backup->has_on_source_error, backup->on_source_error,
- backup->has_on_target_error, backup->on_target_error,
- common->block_job_txn, &local_err);
+ do_blockdev_backup(backup, common->block_job_txn, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
bool has_on_error, BlockdevOnError on_error,
Error **errp)
{
- BlockBackend *blk;
BlockDriverState *bs;
BlockDriverState *base_bs = NULL;
AioContext *aio_context;
on_error = BLOCKDEV_ON_ERROR_REPORT;
}
- blk = blk_by_name(device);
- if (!blk) {
- error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
- "Device '%s' not found", device);
+ bs = qmp_get_root_bs(device, errp);
+ if (!bs) {
return;
}
- aio_context = blk_get_aio_context(blk);
+ aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(aio_context);
- if (!blk_is_available(blk)) {
- error_setg(errp, "Device '%s' has no medium", device);
- goto out;
- }
- bs = blk_bs(blk);
-
if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_STREAM, errp)) {
goto out;
}
bool has_speed, int64_t speed,
Error **errp)
{
- BlockBackend *blk;
BlockDriverState *bs;
BlockDriverState *base_bs, *top_bs;
AioContext *aio_context;
* live commit feature versions; for this to work, we must make sure to
* perform the device lookup before any generic errors that may occur in a
* scenario in which all optional arguments are omitted. */
- blk = blk_by_name(device);
- if (!blk) {
- error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
- "Device '%s' not found", device);
+ bs = qmp_get_root_bs(device, &local_err);
+ if (!bs) {
+ bs = bdrv_lookup_bs(device, device, NULL);
+ if (!bs) {
+ error_free(local_err);
+ error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
+ "Device '%s' not found", device);
+ } else {
+ error_propagate(errp, local_err);
+ }
return;
}
- aio_context = blk_get_aio_context(blk);
+ aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(aio_context);
- if (!blk_is_available(blk)) {
- error_setg(errp, "Device '%s' has no medium", device);
- goto out;
- }
- bs = blk_bs(blk);
-
if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_COMMIT_SOURCE, errp)) {
goto out;
}
aio_context_release(aio_context);
}
-static void do_drive_backup(const char *job_id, const char *device,
- const char *target, bool has_format,
- const char *format, enum MirrorSyncMode sync,
- bool has_mode, enum NewImageMode mode,
- bool has_speed, int64_t speed,
- bool has_bitmap, const char *bitmap,
- bool has_on_source_error,
- BlockdevOnError on_source_error,
- bool has_on_target_error,
- BlockdevOnError on_target_error,
- BlockJobTxn *txn, Error **errp)
+static void do_drive_backup(DriveBackup *backup, BlockJobTxn *txn, Error **errp)
{
- BlockBackend *blk;
BlockDriverState *bs;
BlockDriverState *target_bs;
BlockDriverState *source = NULL;
int flags;
int64_t size;
- if (!has_speed) {
- speed = 0;
+ if (!backup->has_speed) {
+ backup->speed = 0;
}
- if (!has_on_source_error) {
- on_source_error = BLOCKDEV_ON_ERROR_REPORT;
+ if (!backup->has_on_source_error) {
+ backup->on_source_error = BLOCKDEV_ON_ERROR_REPORT;
}
- if (!has_on_target_error) {
- on_target_error = BLOCKDEV_ON_ERROR_REPORT;
+ if (!backup->has_on_target_error) {
+ backup->on_target_error = BLOCKDEV_ON_ERROR_REPORT;
+ }
+ if (!backup->has_mode) {
+ backup->mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS;
+ }
+ if (!backup->has_job_id) {
+ backup->job_id = NULL;
}
- if (!has_mode) {
- mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS;
+ if (!backup->has_compress) {
+ backup->compress = false;
}
- blk = blk_by_name(device);
- if (!blk) {
- error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
- "Device '%s' not found", device);
+ bs = qmp_get_root_bs(backup->device, errp);
+ if (!bs) {
return;
}
- aio_context = blk_get_aio_context(blk);
+ aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(aio_context);
- /* Although backup_run has this check too, we need to use bs->drv below, so
- * do an early check redundantly. */
- if (!blk_is_available(blk)) {
- error_setg(errp, QERR_DEVICE_HAS_NO_MEDIUM, device);
- goto out;
- }
- bs = blk_bs(blk);
-
- if (!has_format) {
- format = mode == NEW_IMAGE_MODE_EXISTING ? NULL : bs->drv->format_name;
+ if (!backup->has_format) {
+ backup->format = backup->mode == NEW_IMAGE_MODE_EXISTING ?
+ NULL : (char*) bs->drv->format_name;
}
/* Early check to avoid creating target */
/* See if we have a backing HD we can use to create our new image
* on top of. */
- if (sync == MIRROR_SYNC_MODE_TOP) {
+ if (backup->sync == MIRROR_SYNC_MODE_TOP) {
source = backing_bs(bs);
if (!source) {
- sync = MIRROR_SYNC_MODE_FULL;
+ backup->sync = MIRROR_SYNC_MODE_FULL;
}
}
- if (sync == MIRROR_SYNC_MODE_NONE) {
+ if (backup->sync == MIRROR_SYNC_MODE_NONE) {
source = bs;
}
goto out;
}
- if (mode != NEW_IMAGE_MODE_EXISTING) {
- assert(format);
+ if (backup->mode != NEW_IMAGE_MODE_EXISTING) {
+ assert(backup->format);
if (source) {
- bdrv_img_create(target, format, source->filename,
+ bdrv_img_create(backup->target, backup->format, source->filename,
source->drv->format_name, NULL,
size, flags, &local_err, false);
} else {
- bdrv_img_create(target, format, NULL, NULL, NULL,
+ bdrv_img_create(backup->target, backup->format, NULL, NULL, NULL,
size, flags, &local_err, false);
}
}
goto out;
}
- if (format) {
+ if (backup->format) {
options = qdict_new();
- qdict_put(options, "driver", qstring_from_str(format));
+ qdict_put(options, "driver", qstring_from_str(backup->format));
}
- target_bs = bdrv_open(target, NULL, options, flags, errp);
+ target_bs = bdrv_open(backup->target, NULL, options, flags, errp);
if (!target_bs) {
goto out;
}
bdrv_set_aio_context(target_bs, aio_context);
- if (has_bitmap) {
- bmap = bdrv_find_dirty_bitmap(bs, bitmap);
+ if (backup->has_bitmap) {
+ bmap = bdrv_find_dirty_bitmap(bs, backup->bitmap);
if (!bmap) {
- error_setg(errp, "Bitmap '%s' could not be found", bitmap);
+ error_setg(errp, "Bitmap '%s' could not be found", backup->bitmap);
bdrv_unref(target_bs);
goto out;
}
}
- backup_start(job_id, bs, target_bs, speed, sync, bmap,
- on_source_error, on_target_error,
- block_job_cb, bs, txn, &local_err);
+ backup_start(backup->job_id, bs, target_bs, backup->speed, backup->sync,
+ bmap, backup->compress, backup->on_source_error,
+ backup->on_target_error, block_job_cb, bs, txn, &local_err);
bdrv_unref(target_bs);
if (local_err != NULL) {
error_propagate(errp, local_err);
aio_context_release(aio_context);
}
-void qmp_drive_backup(bool has_job_id, const char *job_id,
- const char *device, const char *target,
- bool has_format, const char *format,
- enum MirrorSyncMode sync,
- bool has_mode, enum NewImageMode mode,
- bool has_speed, int64_t speed,
- bool has_bitmap, const char *bitmap,
- bool has_on_source_error, BlockdevOnError on_source_error,
- bool has_on_target_error, BlockdevOnError on_target_error,
- Error **errp)
+void qmp_drive_backup(DriveBackup *arg, Error **errp)
{
- return do_drive_backup(has_job_id ? job_id : NULL, device, target,
- has_format, format, sync,
- has_mode, mode, has_speed, speed,
- has_bitmap, bitmap,
- has_on_source_error, on_source_error,
- has_on_target_error, on_target_error,
- NULL, errp);
+ return do_drive_backup(arg, NULL, errp);
}
BlockDeviceInfoList *qmp_query_named_block_nodes(Error **errp)
return bdrv_named_nodes_list(errp);
}
-void do_blockdev_backup(const char *job_id, const char *device,
- const char *target, enum MirrorSyncMode sync,
- bool has_speed, int64_t speed,
- bool has_on_source_error,
- BlockdevOnError on_source_error,
- bool has_on_target_error,
- BlockdevOnError on_target_error,
- BlockJobTxn *txn, Error **errp)
+void do_blockdev_backup(BlockdevBackup *backup, BlockJobTxn *txn, Error **errp)
{
- BlockBackend *blk;
BlockDriverState *bs;
BlockDriverState *target_bs;
Error *local_err = NULL;
AioContext *aio_context;
- if (!has_speed) {
- speed = 0;
+ if (!backup->has_speed) {
+ backup->speed = 0;
}
- if (!has_on_source_error) {
- on_source_error = BLOCKDEV_ON_ERROR_REPORT;
+ if (!backup->has_on_source_error) {
+ backup->on_source_error = BLOCKDEV_ON_ERROR_REPORT;
}
- if (!has_on_target_error) {
- on_target_error = BLOCKDEV_ON_ERROR_REPORT;
+ if (!backup->has_on_target_error) {
+ backup->on_target_error = BLOCKDEV_ON_ERROR_REPORT;
+ }
+ if (!backup->has_job_id) {
+ backup->job_id = NULL;
+ }
+ if (!backup->has_compress) {
+ backup->compress = false;
}
- blk = blk_by_name(device);
- if (!blk) {
- error_setg(errp, "Device '%s' not found", device);
+ bs = qmp_get_root_bs(backup->device, errp);
+ if (!bs) {
return;
}
- aio_context = blk_get_aio_context(blk);
+ aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(aio_context);
- if (!blk_is_available(blk)) {
- error_setg(errp, "Device '%s' has no medium", device);
- goto out;
- }
- bs = blk_bs(blk);
-
- target_bs = bdrv_lookup_bs(target, target, errp);
+ target_bs = bdrv_lookup_bs(backup->target, backup->target, errp);
if (!target_bs) {
goto out;
}
goto out;
}
}
- backup_start(job_id, bs, target_bs, speed, sync, NULL, on_source_error,
- on_target_error, block_job_cb, bs, txn, &local_err);
+ backup_start(backup->job_id, bs, target_bs, backup->speed, backup->sync,
+ NULL, backup->compress, backup->on_source_error,
+ backup->on_target_error, block_job_cb, bs, txn, &local_err);
if (local_err != NULL) {
error_propagate(errp, local_err);
}
aio_context_release(aio_context);
}
-void qmp_blockdev_backup(bool has_job_id, const char *job_id,
- const char *device, const char *target,
- enum MirrorSyncMode sync,
- bool has_speed, int64_t speed,
- bool has_on_source_error,
- BlockdevOnError on_source_error,
- bool has_on_target_error,
- BlockdevOnError on_target_error,
- Error **errp)
+void qmp_blockdev_backup(BlockdevBackup *arg, Error **errp)
{
- do_blockdev_backup(has_job_id ? job_id : NULL, device, target,
- sync, has_speed, speed,
- has_on_source_error, on_source_error,
- has_on_target_error, on_target_error,
- NULL, errp);
+ do_blockdev_backup(arg, NULL, errp);
}
/* Parameter check and block job starting for drive mirroring.
void qmp_drive_mirror(DriveMirror *arg, Error **errp)
{
BlockDriverState *bs;
- BlockBackend *blk;
BlockDriverState *source, *target_bs;
AioContext *aio_context;
BlockMirrorBackingMode backing_mode;
int64_t size;
const char *format = arg->format;
- blk = blk_by_name(arg->device);
- if (!blk) {
- error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
- "Device '%s' not found", arg->device);
+ bs = qmp_get_root_bs(arg->device, errp);
+ if (!bs) {
return;
}
- aio_context = blk_get_aio_context(blk);
+ aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(aio_context);
- if (!blk_is_available(blk)) {
- error_setg(errp, QERR_DEVICE_HAS_NO_MEDIUM, arg->device);
- goto out;
- }
- bs = blk_bs(blk);
if (!arg->has_mode) {
arg->mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS;
}
Error **errp)
{
BlockDriverState *bs;
- BlockBackend *blk;
BlockDriverState *target_bs;
AioContext *aio_context;
BlockMirrorBackingMode backing_mode = MIRROR_LEAVE_BACKING_CHAIN;
Error *local_err = NULL;
- blk = blk_by_name(device);
- if (!blk) {
- error_setg(errp, "Device '%s' not found", device);
- return;
- }
- bs = blk_bs(blk);
-
+ bs = qmp_get_root_bs(device, errp);
if (!bs) {
- error_setg(errp, "Device '%s' has no media", device);
return;
}
const char *backing_file,
Error **errp)
{
- BlockBackend *blk;
BlockDriverState *bs = NULL;
AioContext *aio_context;
BlockDriverState *image_bs = NULL;
int open_flags;
int ret;
- blk = blk_by_name(device);
- if (!blk) {
- error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
- "Device '%s' not found", device);
+ bs = qmp_get_root_bs(device, errp);
+ if (!bs) {
return;
}
- aio_context = blk_get_aio_context(blk);
+ aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(aio_context);
- if (!blk_is_available(blk)) {
- error_setg(errp, "Device '%s' has no medium", device);
- goto out;
- }
- bs = blk_bs(blk);
-
image_bs = bdrv_lookup_bs(NULL, image_node_name, &local_err);
if (local_err) {
error_propagate(errp, local_err);
projects / mirror_qemu.git / blobdiff