void update_mmu_cache()

in abiv1/cacheflush.c [37:57]

• 17 lines of code
• 6 McCabe index (conditional complexity)

void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr,
	pte_t *ptep)
{
	unsigned long pfn = pte_pfn(*ptep);
	struct page *page;

	if (!pfn_valid(pfn))
		return;

	page = pfn_to_page(pfn);
	if (page == ZERO_PAGE(0))
		return;

	if (!test_and_set_bit(PG_dcache_clean, &page->flags))
		dcache_wbinv_all();

	if (page_mapping_file(page)) {
		if (vma->vm_flags & VM_EXEC)
			icache_inv_all();
	}
}