Hello, On Mon, Dec 16, 2013 at 08:12:07PM +0800, Ming Lei wrote: > Looks we should guarantee that I/O queue is emptied before system sleep, > otherwise it may be a bug, since battery may be drained up to cause > data loss or block devices may be disconnected during sleep.
It's a bit beside the point as that's what journaling is for. Power loss during suspend isn't all that different from power loss while suspended. Also, the filesystems are already synced before entering suspend, so it shouldn't be an issue. However, that doesn't guarantee there aren't no pending bdi work items. We *hope* to control the sources with freezer but there's no guarantee about the coverage and no way to verify that either. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
