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- From: Bart Schuller <schuller@dutiea.twi.tudelft.nl>
- Subject: sync deamons
- Date: Mon, 7 Jun 1993 20:15:03 +0200 (MET DST)
- Mime-Version: 1.0
-
- On the subject of minixfs needing a sync deamon:
-
- I asked just about the same question a couple of months ago on this list,
- and at that time a seperate process looked like the best idea. I have been
- hacking on a compressing filesystem, based on the Linux ext2fs.
- I added a Dcntl() sync function, and made an update process which gets
- started in mint.cnf. The problem with this is that Dcntl needs a path to
- my filesystem (I suppose I could just try every fixed disk and see if it
- contains my fs). I haven't seen any problems with this, but it fails if
- MiNT panics or exits.
-
- Of course a Sync() system call would be better.
- This brings up another point: In my fs I allocate 256K buffers, although
- most work on my system gets done on minixfs and TOS partitions. A real
- UNIX has just one buffer cache shared by all filesystems. If a single
- buffer cache gets introduced it could also open the door to multi-threaded
- filesystems (if a new hd-driver concept comes with it).
-
- If only I had an interrupt-driven harddisk driver... I could port almost
- every Linux filesystem available with relative ease.
-
- Enough for now,
-
- Bart.
- -------------------------------------------------------------------------------
- Bart Schuller (NeXTmail OK) | What is a 're-mix?' "A total cheat"...
- schuller@dutiea.twi.tudelft.nl | ..."A gift"-- when it's Frankie... TCH
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-