Re: [PATCH 3 of 5] x86/pgtable.h: demacro ptep_set_access_flags

[Ingo Molnar <mingo@elte.hu>]

* Jeremy Fitzhardinge <jeremy@goop.org> wrote:

> +static inline int ptep_set_access_flags(struct vm_area_struct *vma,
> +					unsigned long address, pte_t *ptep,
> +					pte_t entry, int dirty)
> +{
> +	int changed = !pte_same(*ptep, entry);
> +	if (changed && dirty) {
> +		*ptep = entry;
> +		pte_update_defer(vma->vm_mm, address, ptep);
> +		flush_tlb_page(vma, address);
> +	}
> +	return changed;
> +}

another thing: these inlines are a bit fat and they are used in more 
than one place. Please move them into pgtable.c. The rule of thumb is: 
if an inline is more than 2 lines big, it is a likely candidate for 
uninlining. (and even many 2-liners, and even some 1-liners are 
candidates) Especially under paravirt the MMU inlines grow these update 
notifiers so they become even fatter.

having functions instead of inlines also simplifies the type 
dependencies by quite a degree.

	Ingo