[parisc-linux] Fwd: Problems with raw interface.

[David S. Miller]

On Fri, 26 Sep 2003 12:24:00 +0100
Matthew Wilcox <willy@debian.org> wrote:

> On Thu, Sep 25, 2003 at 06:08:48PM -0700, David S. Miller wrote:
> > The flush_dcache_page() is needed in case the platform has deferred
> > the flushing for a kernel cpu store to a page cache page.
> 
> But this isn't a page cache page.

Are you sure?  Isn't raw I/O allowed on user buffers backed by
some kind of file based mmap()?