void flush_dcache_page()

in abiv1/cacheflush.c [17:34]

• 15 lines of code
• 5 McCabe index (conditional complexity)

void flush_dcache_page(struct page *page)
{
	struct address_space *mapping;

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

	mapping = page_mapping_file(page);

	if (mapping && !page_mapcount(page))
		clear_bit(PG_dcache_clean, &page->flags);
	else {
		dcache_wbinv_all();
		if (mapping)
			icache_inv_all();
		set_bit(PG_dcache_clean, &page->flags);
	}
}