Messages in this thread | | | Date | Tue, 10 Jun 2008 21:40:25 -0700 (PDT) | From | Christoph Lameter <> | Subject | Re: [patch 7/7] powerpc: lockless get_user_pages_fast |
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On Wed, 11 Jun 2008, Nick Piggin wrote:
> > This is reversing the modification to make get_page_unless_zero() usable > > with compound page heads. Will break the slab defrag patchset. > > Is the slab defrag patchset in -mm? Because you ignored my comment about > this change that assertions should not be weakened until required by the > actual patchset. I wanted to have these assertions be as strong as > possible for the lockless pagecache patchset.
So you are worried about accidentally using get_page_unless_zero on a compound page? What would be wrong about that?
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