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    SubjectRe: [RFC][PATCH 3/9] mm: page->pfmemalloc only used by slab/skb
    On 01/14/2014 11:49 AM, Christoph Lameter wrote:
    > On Tue, 14 Jan 2014, Dave Hansen wrote:
    >> page->pfmemalloc does not deserve a spot in 'struct page'. It is
    >> only used transiently _just_ after a page leaves the buddy
    >> allocator.
    >
    > Why would we need to do this if we are removing the cmpxchg_double?

    Why do we need the patch?

    'struct page' is a mess. It's really hard to follow, and the space in
    the definition is a limited resource. We should not waste that space on
    such a transient and unimportant value as pfmemalloc.


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