Messages in this thread | | | Date | Tue, 14 Jan 2014 14:17:06 -0800 | From | Dave Hansen <> | Subject | Re: [RFC][PATCH 3/9] mm: page->pfmemalloc only used by slab/skb |
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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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