static void flush_aliases()

in mm/cacheflush.c [74:96]

• 19 lines of code
• 3 McCabe index (conditional complexity)

static void flush_aliases(struct address_space *mapping, struct page *page)
{
	struct mm_struct *mm = current->active_mm;
	struct vm_area_struct *mpnt;
	pgoff_t pgoff;

	pgoff = page->index;

	flush_dcache_mmap_lock(mapping);
	vma_interval_tree_foreach(mpnt, &mapping->i_mmap, pgoff, pgoff) {
		unsigned long offset;

		if (mpnt->vm_mm != mm)
			continue;
		if (!(mpnt->vm_flags & VM_MAYSHARE))
			continue;

		offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT;
		flush_cache_page(mpnt, mpnt->vm_start + offset,
			page_to_pfn(page));
	}
	flush_dcache_mmap_unlock(mapping);
}