Re: (reiserfs) Re: LVM / Filesystems / High availability

Stephen C. Tweedie (sct@dcs.ed.ac.uk)
Thu, 25 Jun 1998 11:52:43 +0100


On Thu, 25 Jun 1998 00:02:25 +0200 (MET DST), MOLNAR Ingo
<mingo@valerie.inf.elte.hu> said:

> and, persistant data is always a pain as it doesnt go away after
> reboot, and i'm wondering wether we should provide a generic
> framework to do reliable atomic operations on persistant data
> (transactions). Otherwise we would just end up doing our own little
> imperfect transaction engine, within fdisk, within ckraid, within
> JFS/ext3fs/reiserfs. One thing is sure, the situation (ie. the size
> of persistant data) gets worse and worse :)

The ext2 journaling design has a fairly portable core which will be in
linux/fs, not linux/fs/ext2. The portable section includes the
transaction/buffer management, writeback ordering and log writing.
Only the actual generation of transactions will be ext2-specific.

--Stephen

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