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SubjectRe: [PATCH v35 1/5] mm: support to get hints of free page blocks
On Tue 10-07-18 18:44:34, Linus Torvalds wrote:
[...]
> That was what I tried to encourage with actually removing the pages
> form the page list. That would be an _incremental_ interface. You can
> remove MAX_ORDER-1 pages one by one (or a hundred at a time), and mark
> them free for ballooning that way. And if you still feel you have tons
> of free memory, just continue removing more pages from the free list.

We already have an interface for that. alloc_pages(GFP_NOWAIT, MAX_ORDER -1).
So why do we need any array based interface?
--
Michal Hocko
SUSE Labs

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