void flush_cache_range()

in mm/cacheflush.c [132:151]

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

void flush_cache_range(struct vm_area_struct *vma,
		       unsigned long start, unsigned long end)
{
	unsigned long flags;

	if ((end - start) > 8 * PAGE_SIZE) {
		cpu_dcache_wbinval_all();
		if (vma->vm_flags & VM_EXEC)
			cpu_icache_inval_all();
		return;
	}
	local_irq_save(flags);
	while (start < end) {
		if (va_present(vma->vm_mm, start))
			cpu_cache_wbinval_page(start, vma->vm_flags & VM_EXEC);
		start += PAGE_SIZE;
	}
	local_irq_restore(flags);
	return;
}