Re: Properly implement flush_dcache_page in 2.4? (Or is it possible?)

Hugh Dickins
2003-05-31T09:54:09Z

On Sat, 31 May 2003, Russell King wrote:
> On Sat, May 31, 2003 at 09:33:04AM +0100, Hugh Dickins wrote:
> > that's a possibility), the "unspecified" would allow that much - but
> > wouldn't allow you to show portions of entirely other files!
>
> Other files should not be stored in the same page though - if that's
> happening today, then we have a violation of POSIX, wrong from Linus'
> "quality of implementation" standpoint, and its a security hole.

Sorry, false alarm, I didn't mean to imply that was happening anywhere:
I was just giving a throwaway example of how, though a standard might
say "unspecified", there are still limits to what's allowed - yes,
"quality of implementation" is a good measure.

Hugh