Messages in this thread | | | Date | Fri, 24 Nov 2006 10:11:55 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: [PATCH 1/11] Add __GFP_MOVABLE flag and update callers |
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On Fri, 24 Nov 2006, Christoph Lameter wrote: > > So please do not require movable pages to be user allocations.
I don't think you read the whole sentence I wrote.
Go back: USER just means "it it can fail much more eagerly". It really has nothing to do with user-mode per se. It's just not so core that the kernel cannot handle allocation failures, so it doesn't get to retry the allocation so eagerly.
THAT is why "movable" is almost guaranteed to also imply USER. Not because it's not a "kernel" allocation. After all, _all_ page allocations are kernel allocations, it's just that some are more likely to be associated with direct user requests, and some are more internal.
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