JOB_LOCK_GUARD();
- for (job = block_job_next_locked(NULL); job;
- job = block_job_next_locked(job)) {
- if (block_job_has_bdrv(job, blk_bs(blk))) {
+ do {
+ job = block_job_next_locked(NULL);
+ while (job && (job->job.cancelled ||
+ job->job.deferred_to_main_loop ||
+ !block_job_has_bdrv(job, blk_bs(blk))))
+ {
+ job = block_job_next_locked(job);
+ }
+ if (job) {
+ /*
+ * This drops the job lock temporarily and polls, so we need to
+ * restart processing the list from the start after this.
+ */
job_cancel_locked(&job->job, false);
}
- }
+ } while (job);
dinfo->auto_del = 1;
}
*/
typedef struct BlkActionOps {
size_t instance_size;
- void (*prepare)(BlkActionState *common, Error **errp);
- void (*commit)(BlkActionState *common);
- void (*abort)(BlkActionState *common);
- void (*clean)(BlkActionState *common);
+ void (*action)(BlkActionState *common, Transaction *tran, Error **errp);
} BlkActionOps;
/**
bool created;
} InternalSnapshotState;
+static void internal_snapshot_abort(void *opaque);
+static void internal_snapshot_clean(void *opaque);
+TransactionActionDrv internal_snapshot_drv = {
+ .abort = internal_snapshot_abort,
+ .clean = internal_snapshot_clean,
+};
static int action_check_completion_mode(BlkActionState *s, Error **errp)
{
return 0;
}
-static void internal_snapshot_prepare(BlkActionState *common,
- Error **errp)
+static void internal_snapshot_action(BlkActionState *common,
+ Transaction *tran, Error **errp)
{
Error *local_err = NULL;
const char *device;
internal = common->action->u.blockdev_snapshot_internal_sync.data;
state = DO_UPCAST(InternalSnapshotState, common, common);
+ tran_add(tran, &internal_snapshot_drv, state);
+
/* 1. parse input */
device = internal->device;
name = internal->name;
aio_context_release(aio_context);
}
-static void internal_snapshot_abort(BlkActionState *common)
+static void internal_snapshot_abort(void *opaque)
{
- InternalSnapshotState *state =
- DO_UPCAST(InternalSnapshotState, common, common);
+ InternalSnapshotState *state = opaque;
BlockDriverState *bs = state->bs;
QEMUSnapshotInfo *sn = &state->sn;
AioContext *aio_context;
aio_context_release(aio_context);
}
-static void internal_snapshot_clean(BlkActionState *common)
+static void internal_snapshot_clean(void *opaque)
{
- InternalSnapshotState *state = DO_UPCAST(InternalSnapshotState,
- common, common);
+ g_autofree InternalSnapshotState *state = opaque;
AioContext *aio_context;
if (!state->bs) {
bool overlay_appended;
} ExternalSnapshotState;
-static void external_snapshot_prepare(BlkActionState *common,
- Error **errp)
+static void external_snapshot_commit(void *opaque);
+static void external_snapshot_abort(void *opaque);
+static void external_snapshot_clean(void *opaque);
+TransactionActionDrv external_snapshot_drv = {
+ .commit = external_snapshot_commit,
+ .abort = external_snapshot_abort,
+ .clean = external_snapshot_clean,
+};
+
+static void external_snapshot_action(BlkActionState *common, Transaction *tran,
+ Error **errp)
{
int ret;
int flags = 0;
AioContext *aio_context;
uint64_t perm, shared;
+ tran_add(tran, &external_snapshot_drv, state);
+
/* 'blockdev-snapshot' and 'blockdev-snapshot-sync' have similar
* purpose but a different set of parameters */
switch (action->type) {
aio_context_release(aio_context);
}
-static void external_snapshot_commit(BlkActionState *common)
+static void external_snapshot_commit(void *opaque)
{
- ExternalSnapshotState *state =
- DO_UPCAST(ExternalSnapshotState, common, common);
+ ExternalSnapshotState *state = opaque;
AioContext *aio_context;
aio_context = bdrv_get_aio_context(state->old_bs);
aio_context_release(aio_context);
}
-static void external_snapshot_abort(BlkActionState *common)
+static void external_snapshot_abort(void *opaque)
{
- ExternalSnapshotState *state =
- DO_UPCAST(ExternalSnapshotState, common, common);
+ ExternalSnapshotState *state = opaque;
if (state->new_bs) {
if (state->overlay_appended) {
AioContext *aio_context;
}
}
-static void external_snapshot_clean(BlkActionState *common)
+static void external_snapshot_clean(void *opaque)
{
- ExternalSnapshotState *state =
- DO_UPCAST(ExternalSnapshotState, common, common);
+ g_autofree ExternalSnapshotState *state = opaque;
AioContext *aio_context;
if (!state->old_bs) {
AioContext *aio_context,
JobTxn *txn, Error **errp);
-static void drive_backup_prepare(BlkActionState *common, Error **errp)
+static void drive_backup_commit(void *opaque);
+static void drive_backup_abort(void *opaque);
+static void drive_backup_clean(void *opaque);
+TransactionActionDrv drive_backup_drv = {
+ .commit = drive_backup_commit,
+ .abort = drive_backup_abort,
+ .clean = drive_backup_clean,
+};
+
+static void drive_backup_action(BlkActionState *common, Transaction *tran,
+ Error **errp)
{
DriveBackupState *state = DO_UPCAST(DriveBackupState, common, common);
DriveBackup *backup;
bool set_backing_hd = false;
int ret;
+ tran_add(tran, &drive_backup_drv, state);
+
assert(common->action->type == TRANSACTION_ACTION_KIND_DRIVE_BACKUP);
backup = common->action->u.drive_backup.data;
aio_context_release(aio_context);
}
-static void drive_backup_commit(BlkActionState *common)
+static void drive_backup_commit(void *opaque)
{
- DriveBackupState *state = DO_UPCAST(DriveBackupState, common, common);
+ DriveBackupState *state = opaque;
AioContext *aio_context;
aio_context = bdrv_get_aio_context(state->bs);
aio_context_release(aio_context);
}
-static void drive_backup_abort(BlkActionState *common)
+static void drive_backup_abort(void *opaque)
{
- DriveBackupState *state = DO_UPCAST(DriveBackupState, common, common);
+ DriveBackupState *state = opaque;
if (state->job) {
job_cancel_sync(&state->job->job, true);
}
}
-static void drive_backup_clean(BlkActionState *common)
+static void drive_backup_clean(void *opaque)
{
- DriveBackupState *state = DO_UPCAST(DriveBackupState, common, common);
+ g_autofree DriveBackupState *state = opaque;
AioContext *aio_context;
if (!state->bs) {
BlockJob *job;
} BlockdevBackupState;
-static void blockdev_backup_prepare(BlkActionState *common, Error **errp)
+static void blockdev_backup_commit(void *opaque);
+static void blockdev_backup_abort(void *opaque);
+static void blockdev_backup_clean(void *opaque);
+TransactionActionDrv blockdev_backup_drv = {
+ .commit = blockdev_backup_commit,
+ .abort = blockdev_backup_abort,
+ .clean = blockdev_backup_clean,
+};
+
+static void blockdev_backup_action(BlkActionState *common, Transaction *tran,
+ Error **errp)
{
BlockdevBackupState *state = DO_UPCAST(BlockdevBackupState, common, common);
BlockdevBackup *backup;
AioContext *old_context;
int ret;
+ tran_add(tran, &blockdev_backup_drv, state);
+
assert(common->action->type == TRANSACTION_ACTION_KIND_BLOCKDEV_BACKUP);
backup = common->action->u.blockdev_backup.data;
aio_context_release(aio_context);
}
-static void blockdev_backup_commit(BlkActionState *common)
+static void blockdev_backup_commit(void *opaque)
{
- BlockdevBackupState *state = DO_UPCAST(BlockdevBackupState, common, common);
+ BlockdevBackupState *state = opaque;
AioContext *aio_context;
aio_context = bdrv_get_aio_context(state->bs);
aio_context_release(aio_context);
}
-static void blockdev_backup_abort(BlkActionState *common)
+static void blockdev_backup_abort(void *opaque)
{
- BlockdevBackupState *state = DO_UPCAST(BlockdevBackupState, common, common);
+ BlockdevBackupState *state = opaque;
if (state->job) {
job_cancel_sync(&state->job->job, true);
}
}
-static void blockdev_backup_clean(BlkActionState *common)
+static void blockdev_backup_clean(void *opaque)
{
- BlockdevBackupState *state = DO_UPCAST(BlockdevBackupState, common, common);
+ g_autofree BlockdevBackupState *state = opaque;
AioContext *aio_context;
if (!state->bs) {
bool was_enabled;
} BlockDirtyBitmapState;
-static void block_dirty_bitmap_add_prepare(BlkActionState *common,
- Error **errp)
+static void block_dirty_bitmap_add_abort(void *opaque);
+TransactionActionDrv block_dirty_bitmap_add_drv = {
+ .abort = block_dirty_bitmap_add_abort,
+ .clean = g_free,
+};
+
+static void block_dirty_bitmap_add_action(BlkActionState *common,
+ Transaction *tran, Error **errp)
{
Error *local_err = NULL;
BlockDirtyBitmapAdd *action;
BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
common, common);
+ tran_add(tran, &block_dirty_bitmap_add_drv, state);
+
if (action_check_completion_mode(common, errp) < 0) {
return;
}
}
}
-static void block_dirty_bitmap_add_abort(BlkActionState *common)
+static void block_dirty_bitmap_add_abort(void *opaque)
{
BlockDirtyBitmapAdd *action;
- BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
- common, common);
+ BlockDirtyBitmapState *state = opaque;
- action = common->action->u.block_dirty_bitmap_add.data;
+ action = state->common.action->u.block_dirty_bitmap_add.data;
/* Should not be able to fail: IF the bitmap was added via .prepare(),
* then the node reference and bitmap name must have been valid.
*/
}
}
-static void block_dirty_bitmap_clear_prepare(BlkActionState *common,
- Error **errp)
+static void block_dirty_bitmap_restore(void *opaque);
+static void block_dirty_bitmap_free_backup(void *opaque);
+TransactionActionDrv block_dirty_bitmap_clear_drv = {
+ .abort = block_dirty_bitmap_restore,
+ .commit = block_dirty_bitmap_free_backup,
+ .clean = g_free,
+};
+
+static void block_dirty_bitmap_clear_action(BlkActionState *common,
+ Transaction *tran, Error **errp)
{
BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
common, common);
BlockDirtyBitmap *action;
+ tran_add(tran, &block_dirty_bitmap_clear_drv, state);
+
if (action_check_completion_mode(common, errp) < 0) {
return;
}
bdrv_clear_dirty_bitmap(state->bitmap, &state->backup);
}
-static void block_dirty_bitmap_restore(BlkActionState *common)
+static void block_dirty_bitmap_restore(void *opaque)
{
- BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
- common, common);
+ BlockDirtyBitmapState *state = opaque;
if (state->backup) {
bdrv_restore_dirty_bitmap(state->bitmap, state->backup);
}
}
-static void block_dirty_bitmap_free_backup(BlkActionState *common)
+static void block_dirty_bitmap_free_backup(void *opaque)
{
- BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
- common, common);
+ BlockDirtyBitmapState *state = opaque;
hbitmap_free(state->backup);
}
-static void block_dirty_bitmap_enable_prepare(BlkActionState *common,
- Error **errp)
+static void block_dirty_bitmap_enable_abort(void *opaque);
+TransactionActionDrv block_dirty_bitmap_enable_drv = {
+ .abort = block_dirty_bitmap_enable_abort,
+ .clean = g_free,
+};
+
+static void block_dirty_bitmap_enable_action(BlkActionState *common,
+ Transaction *tran, Error **errp)
{
BlockDirtyBitmap *action;
BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
common, common);
+ tran_add(tran, &block_dirty_bitmap_enable_drv, state);
+
if (action_check_completion_mode(common, errp) < 0) {
return;
}
bdrv_enable_dirty_bitmap(state->bitmap);
}
-static void block_dirty_bitmap_enable_abort(BlkActionState *common)
+static void block_dirty_bitmap_enable_abort(void *opaque)
{
- BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
- common, common);
+ BlockDirtyBitmapState *state = opaque;
if (!state->was_enabled) {
bdrv_disable_dirty_bitmap(state->bitmap);
}
}
-static void block_dirty_bitmap_disable_prepare(BlkActionState *common,
- Error **errp)
+static void block_dirty_bitmap_disable_abort(void *opaque);
+TransactionActionDrv block_dirty_bitmap_disable_drv = {
+ .abort = block_dirty_bitmap_disable_abort,
+ .clean = g_free,
+};
+
+static void block_dirty_bitmap_disable_action(BlkActionState *common,
+ Transaction *tran, Error **errp)
{
BlockDirtyBitmap *action;
BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
common, common);
+ tran_add(tran, &block_dirty_bitmap_disable_drv, state);
+
if (action_check_completion_mode(common, errp) < 0) {
return;
}
bdrv_disable_dirty_bitmap(state->bitmap);
}
-static void block_dirty_bitmap_disable_abort(BlkActionState *common)
+static void block_dirty_bitmap_disable_abort(void *opaque)
{
- BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
- common, common);
+ BlockDirtyBitmapState *state = opaque;
if (state->was_enabled) {
bdrv_enable_dirty_bitmap(state->bitmap);
}
}
-static void block_dirty_bitmap_merge_prepare(BlkActionState *common,
- Error **errp)
+TransactionActionDrv block_dirty_bitmap_merge_drv = {
+ .commit = block_dirty_bitmap_free_backup,
+ .abort = block_dirty_bitmap_restore,
+ .clean = g_free,
+};
+
+static void block_dirty_bitmap_merge_action(BlkActionState *common,
+ Transaction *tran, Error **errp)
{
BlockDirtyBitmapMerge *action;
BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
common, common);
+ tran_add(tran, &block_dirty_bitmap_merge_drv, state);
+
if (action_check_completion_mode(common, errp) < 0) {
return;
}
errp);
}
-static void block_dirty_bitmap_remove_prepare(BlkActionState *common,
- Error **errp)
+static void block_dirty_bitmap_remove_commit(void *opaque);
+static void block_dirty_bitmap_remove_abort(void *opaque);
+TransactionActionDrv block_dirty_bitmap_remove_drv = {
+ .commit = block_dirty_bitmap_remove_commit,
+ .abort = block_dirty_bitmap_remove_abort,
+ .clean = g_free,
+};
+
+static void block_dirty_bitmap_remove_action(BlkActionState *common,
+ Transaction *tran, Error **errp)
{
BlockDirtyBitmap *action;
BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
common, common);
+ tran_add(tran, &block_dirty_bitmap_remove_drv, state);
+
if (action_check_completion_mode(common, errp) < 0) {
return;
}
}
}
-static void block_dirty_bitmap_remove_abort(BlkActionState *common)
+static void block_dirty_bitmap_remove_abort(void *opaque)
{
- BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
- common, common);
+ BlockDirtyBitmapState *state = opaque;
if (state->bitmap) {
bdrv_dirty_bitmap_skip_store(state->bitmap, false);
}
}
-static void block_dirty_bitmap_remove_commit(BlkActionState *common)
+static void block_dirty_bitmap_remove_commit(void *opaque)
{
- BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
- common, common);
+ BlockDirtyBitmapState *state = opaque;
bdrv_dirty_bitmap_set_busy(state->bitmap, false);
bdrv_release_dirty_bitmap(state->bitmap);
}
-static void abort_prepare(BlkActionState *common, Error **errp)
+static void abort_commit(void *opaque);
+TransactionActionDrv abort_drv = {
+ .commit = abort_commit,
+ .clean = g_free,
+};
+
+static void abort_action(BlkActionState *common, Transaction *tran,
+ Error **errp)
{
+ tran_add(tran, &abort_drv, common);
error_setg(errp, "Transaction aborted using Abort action");
}
-static void abort_commit(BlkActionState *common)
+static void abort_commit(void *opaque)
{
g_assert_not_reached(); /* this action never succeeds */
}
static const BlkActionOps actions[] = {
[TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT] = {
.instance_size = sizeof(ExternalSnapshotState),
- .prepare = external_snapshot_prepare,
- .commit = external_snapshot_commit,
- .abort = external_snapshot_abort,
- .clean = external_snapshot_clean,
+ .action = external_snapshot_action,
},
[TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_SYNC] = {
.instance_size = sizeof(ExternalSnapshotState),
- .prepare = external_snapshot_prepare,
- .commit = external_snapshot_commit,
- .abort = external_snapshot_abort,
- .clean = external_snapshot_clean,
+ .action = external_snapshot_action,
},
[TRANSACTION_ACTION_KIND_DRIVE_BACKUP] = {
.instance_size = sizeof(DriveBackupState),
- .prepare = drive_backup_prepare,
- .commit = drive_backup_commit,
- .abort = drive_backup_abort,
- .clean = drive_backup_clean,
+ .action = drive_backup_action,
},
[TRANSACTION_ACTION_KIND_BLOCKDEV_BACKUP] = {
.instance_size = sizeof(BlockdevBackupState),
- .prepare = blockdev_backup_prepare,
- .commit = blockdev_backup_commit,
- .abort = blockdev_backup_abort,
- .clean = blockdev_backup_clean,
+ .action = blockdev_backup_action,
},
[TRANSACTION_ACTION_KIND_ABORT] = {
.instance_size = sizeof(BlkActionState),
- .prepare = abort_prepare,
- .commit = abort_commit,
+ .action = abort_action,
},
[TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_INTERNAL_SYNC] = {
.instance_size = sizeof(InternalSnapshotState),
- .prepare = internal_snapshot_prepare,
- .abort = internal_snapshot_abort,
- .clean = internal_snapshot_clean,
+ .action = internal_snapshot_action,
},
[TRANSACTION_ACTION_KIND_BLOCK_DIRTY_BITMAP_ADD] = {
.instance_size = sizeof(BlockDirtyBitmapState),
- .prepare = block_dirty_bitmap_add_prepare,
- .abort = block_dirty_bitmap_add_abort,
+ .action = block_dirty_bitmap_add_action,
},
[TRANSACTION_ACTION_KIND_BLOCK_DIRTY_BITMAP_CLEAR] = {
.instance_size = sizeof(BlockDirtyBitmapState),
- .prepare = block_dirty_bitmap_clear_prepare,
- .commit = block_dirty_bitmap_free_backup,
- .abort = block_dirty_bitmap_restore,
+ .action = block_dirty_bitmap_clear_action,
},
[TRANSACTION_ACTION_KIND_BLOCK_DIRTY_BITMAP_ENABLE] = {
.instance_size = sizeof(BlockDirtyBitmapState),
- .prepare = block_dirty_bitmap_enable_prepare,
- .abort = block_dirty_bitmap_enable_abort,
+ .action = block_dirty_bitmap_enable_action,
},
[TRANSACTION_ACTION_KIND_BLOCK_DIRTY_BITMAP_DISABLE] = {
.instance_size = sizeof(BlockDirtyBitmapState),
- .prepare = block_dirty_bitmap_disable_prepare,
- .abort = block_dirty_bitmap_disable_abort,
+ .action = block_dirty_bitmap_disable_action,
},
[TRANSACTION_ACTION_KIND_BLOCK_DIRTY_BITMAP_MERGE] = {
.instance_size = sizeof(BlockDirtyBitmapState),
- .prepare = block_dirty_bitmap_merge_prepare,
- .commit = block_dirty_bitmap_free_backup,
- .abort = block_dirty_bitmap_restore,
+ .action = block_dirty_bitmap_merge_action,
},
[TRANSACTION_ACTION_KIND_BLOCK_DIRTY_BITMAP_REMOVE] = {
.instance_size = sizeof(BlockDirtyBitmapState),
- .prepare = block_dirty_bitmap_remove_prepare,
- .commit = block_dirty_bitmap_remove_commit,
- .abort = block_dirty_bitmap_remove_abort,
+ .action = block_dirty_bitmap_remove_action,
},
/* Where are transactions for MIRROR, COMMIT and STREAM?
* Although these blockjobs use transaction callbacks like the backup job,
TransactionActionList *dev_entry = dev_list;
bool has_props = !!props;
JobTxn *block_job_txn = NULL;
- BlkActionState *state, *next;
Error *local_err = NULL;
+ Transaction *tran = tran_new();
GLOBAL_STATE_CODE();
- QTAILQ_HEAD(, BlkActionState) snap_bdrv_states;
- QTAILQ_INIT(&snap_bdrv_states);
-
/* Does this transaction get canceled as a group on failure?
* If not, we don't really need to make a JobTxn.
*/
while (NULL != dev_entry) {
TransactionAction *dev_info = NULL;
const BlkActionOps *ops;
+ BlkActionState *state;
dev_info = dev_entry->value;
dev_entry = dev_entry->next;
state->action = dev_info;
state->block_job_txn = block_job_txn;
state->txn_props = props;
- QTAILQ_INSERT_TAIL(&snap_bdrv_states, state, entry);
- state->ops->prepare(state, &local_err);
+ state->ops->action(state, tran, &local_err);
if (local_err) {
error_propagate(errp, local_err);
goto delete_and_fail;
}
}
- QTAILQ_FOREACH(state, &snap_bdrv_states, entry) {
- if (state->ops->commit) {
- state->ops->commit(state);
- }
- }
+ tran_commit(tran);
/* success */
goto exit;
delete_and_fail:
/* failure, and it is all-or-none; roll back all operations */
- QTAILQ_FOREACH_REVERSE(state, &snap_bdrv_states, entry) {
- if (state->ops->abort) {
- state->ops->abort(state);
- }
- }
+ tran_abort(tran);
exit:
- QTAILQ_FOREACH_SAFE(state, &snap_bdrv_states, entry, next) {
- if (state->ops->clean) {
- state->ops->clean(state);
- }
- g_free(state);
- }
if (!has_props) {
qapi_free_TransactionProperties(props);
}
return;
}
- blk = blk_new_with_bs(bs, BLK_PERM_RESIZE, BLK_PERM_ALL, errp);
+ blk = blk_co_new_with_bs(bs, BLK_PERM_RESIZE, BLK_PERM_ALL, errp);
if (!blk) {
return;
}
bdrv_co_lock(bs);
bdrv_drained_end(bs);
- blk_unref(blk);
+ blk_co_unref(blk);
bdrv_co_unlock(bs);
}
BlockDriverState *unfiltered_bs;
int job_flags = JOB_DEFAULT;
+ GLOBAL_STATE_CODE();
+ GRAPH_RDLOCK_GUARD_MAINLOOP();
+
if (!has_speed) {
speed = 0;
}
projects / mirror_qemu.git / blobdiff