[parisc-linux] Fwd: Problems with raw interface.
Fri, 26 Sep 2003 13:20:23 +0100
On Fri, Sep 26, 2003 at 04:48:41AM -0700, David S. Miller wrote:
> On 26 Sep 2003 12:57:01 +0100
> "Stephen C. Tweedie" <firstname.lastname@example.org> wrote:
> > On Fri, 2003-09-26 at 12:20, David S. Miller wrote:
> > > Are you sure? Isn't raw I/O allowed on user buffers backed by
> > > some kind of file based mmap()?
> > Yes, it is.
> So there we go, that's how page can be a page cache page Matthew.
OK, so it *might* be a page cache page, but isn't necessarily. So we
need to call *both* flush_dcache_page() and flush_cache_range(), right?
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