Jan Kara <jack@xxxxxxx> writes: > ext4_io_end_t *cur_aio_dio; > + > + /* > + * Transactions that contain inode's metadata needed to complete > + * fsync and fdatasync, respectively. > + */ > + atomic_t i_sync_tid; > + atomic_t i_datasync_tid; This might be a stupid question, but the atomic implies you don't hold any kind of reference to the transaction. So what prevents these IDs from wrapping while in there? Given it would be probably take a long time today, but might be not fully future proof to very fast future IO devices. -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
