My Raspberry Pis are likely to be dispatched tomorrow.
Wondering if I should use the little Plan 9 installation I plan to build as a testbed for a parallel filesystem (that I write).
As preparation for next week’s literature review seminar I read about the Vesta filesystem and find it absolutely fascinating. Could we build a new filesystem – Pallas? – which combines the Vesta approach with support for Unix semantics?
Obviously the whole world is waiting for VMUFAT to hit the streets, but it looks as though it will have to hold its collective breath a little longer, as I have hit more delays.
Working with big volumes (several megabytes) reveals the code eats a lot of memory in ways I don’t yet fully understand. But that will need to be fixed, even if no one is ever really likely to want a 32MB VMUFAT volume.
I never managed to get the thing into mainline – indeed the battering I got last time I tried, in 2009, more or less made me give up writing anything for the kernel and the Dreamcast was put away.
I am not pretending my code was pretty or even particularly good but it is no wonder people get put off from contributing when you get pig ignorant comments like these:
Everything about the on-disk format is tied to the VMU. Until that sinks in, don’t bother sending me email, thanks.
This was someone, who ought to have known better, claiming that it was not possible to have a free standing filesystem for this at all – though they were making their, incorrect, claim in the manner seen all too frequently on the Linux Kernel Mailing List.
No comments. Really. There must be some limits on the language one is willing to use on public maillist, after all.
As you can tell this person – a top flight Linux hacker – did not like my code. And, looking back, I can hardly blame him, it was pretty ugly. But as a help to fix it this is of next to no use – and only serves to demotivate. Nasty computer scientists, again.
Ok, so I have got that off my chest. And I am once more placing myself in the firing line.
The filesystem code, a work in progress (so check where the code has got to once you click the link), can be found here. A filesystem that you should be able to mount under loopback, can be found here. All testers welcomed with open arms.