@@ -1588,6 +1588,8 @@ static void drive_backup_prepare(BlkTransactionState *common, Error **errp)
/* AioContext is released in .clean() */
state->aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(state->aio_context);
+ bdrv_lock(bs);
+ state->bs = bs;
qmp_drive_backup(backup->device, backup->target,
backup->has_format, backup->format,
@@ -1603,7 +1605,6 @@ static void drive_backup_prepare(BlkTransactionState *common, Error **errp)
return;
}
- state->bs = bs;
state->job = state->bs->job;
}
@@ -1623,6 +1624,7 @@ static void drive_backup_clean(BlkTransactionState *common)
DriveBackupState *state = DO_UPCAST(DriveBackupState, common, common);
if (state->aio_context) {
+ bdrv_unlock(state->bs);
aio_context_release(state->aio_context);
}
}
To save the bs pointer for drive_backup_clean, pull the assignment to state->bs up. It will not be a problem for drive_backup_abort because state->job will still be NULL. Signed-off-by: Fam Zheng <famz@redhat.com> --- blockdev.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)