Maximum transaction size/splitting up large transactions?

[Valerie Aurora]

Hey ngneers,

I've implemented file data reads/writes, and I have this comment
outside the main loop of per block reads/writes:

/* XXX break up into smaller transactions */

Is this something to leave for later, or is it worth discussing now?
For file data, my ideal would be some way to check how much space I
have left in the transaction before I add another block and its
potential additional indirect blocks.

Valerie