On Wed, Apr 26 2006, Christoph Hellwig wrote:
> On Wed, Apr 26, 2006 at 11:10:54AM -0700, Andrew Morton wrote:
> > > But boy I wish find_get_pages_contig() was there
> > > for that. I think I'd prefer adding that instead of coding that logic in
> > > splice, it can get a little tricky.
> >
> > I guess it'd make sense - we haven't had a need for such a thing before.
> >
> > umm, something like...
>
> XFS would have a use for it, too. In fact XFS would prefer a
> find_or_create_pages-like thing which is the thing splice wants in
> the end aswell.
Yes, but preferably without locking the page. So splice really wants a
find_get_or_create_pages(). But it wouldn't simplify splice very much in
the end, since the worst part of that function is trying to ascertain if
the page is good, needs to be read in, truncated, etc.
--
Jens Axboe
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