Messages in this thread |  | | Date | Mon, 25 Sep 2000 09:35:53 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: the new VMt |
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On Mon, 25 Sep 2000, Andrea Arcangeli wrote: > > But I'd much prefer to pass not only the classzone from allocator > to memory balancing, but _also_ the order of the allocation, > and then shrink_mmap will know it doesn't worth to free anything > that isn't contigous on the order of the allocation that we need.
I suspect that the proper way to do this is to just make another gfp_flag, which is basically another hint to the mm layer that we're doing a multi- page allocation and that the MM layer should not try forever to handle it.
In fact, that's independent of whether it is a multi-page allocation or not. It might be something like __GFP_SOFT - you could use it with single pages too.
Thinking about it, we do have it already. It's called !__GFP_HIGH, and it used by all the GFP_USER allocations.
Linus
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