gjournal and Softupdates

Daniel O'Connor doconnor at gsoft.com.au
Wed Sep 13 15:41:47 PDT 2006


On Wednesday 13 September 2006 23:53, Pawel Jakub Dawidek wrote:
> On Tue, Sep 12, 2006 at 12:04:01PM +0200, Christian Laursen wrote:
> > Ivan Voras <ivoras at fer.hr> writes:
> > > - todays desktop drives can lie about writing data. SoftUpdates relies
> > > on some assumptions about when the data is physically written to
> > > media, and those are not always valid today
> >
> > I think journaling relies on the same assumptions.
>
> Not gjournal, because it uses BIO_FLUSH I/O requests which flushes disk
> write cache when needed.

It should be possible to use this same mechanism for SU too, right?

Of course that may result in really poor write performance :)

-- 
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
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