On Thu, 2006-05-25 at 09:27 -0700, Christoph Lameter wrote:
> On Thu, 25 May 2006, Peter Zijlstra wrote:
>
> > - rebased on top of David Howells' page_mkwrite() patch.
>
> I am a bit confused about the need for Davids patch. set_page_dirty() is
> already a notification that a page is to be dirtied. Why do we need it
> twice? set_page_dirty could return an error code and the file system can
> use the set_page_dirty() hook to get its notification. What we would need
> to do is to make sure that set_page_dirty can sleep.
Ah, I see what you're saying here. Good point, David, Hugh?
The reason I did it was because of Hugh's trick to use MAP_SHARED
protection and building on top of it naturally solves the patch conflict
Andrew would have had to resolve otherwise.
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