Re: statfs() / statvfs() syscall ballsup...

[Chris Friesen]

Joel Becker wrote:
> On Fri, Oct 10, 2003 at 12:58:05PM -0400, Chris Friesen wrote:
>
> > > 	Because you can't force flush/read.  You can't say "I need you
> > > to go to disk for this."
> > According to my man pages, this is exactly what msync() is for, no?
>
> 	msync() forces write(), like fsync().  It doesn't force read().

Oh, of course.

So do the applications know when they need to invalidate the cache 
(allowing for the reader to do a reverse-msync kind of thing), or do 
they have to read from disk all the time?

Chris



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