Re: [PATCH] mm: don't invoke __alloc_pages_direct_compact whenorder 0

[Andrew Morton]

On Mon, 9 Jul 2012 23:13:50 +0900
JoonSoo Kim <js1304@xxxxxxxxx> wrote:

> >> In my kernel image, __alloc_pages_direct_compact() is not inlined by gcc.

My gcc-4.4.4 doesn't inline it either.

> I think __alloc_pages_direct_compact() can't be inlined by gcc,
> because it is so big and is invoked two times in __alloc_pages_nodemask().

This.  Large function, two callsites.

Making __alloc_pages_direct_compact() __always_inline adds only 26
bytes to my page_alloc.o's .text.  Such is the suckiness of passing
eleven arguments!

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