current_mm 255 arch/x86/include/asm/tlbflush.h struct mm_struct *current_mm = current->mm; current_mm 269 arch/x86/include/asm/tlbflush.h if (loaded_mm != current_mm) current_mm 272 arch/x86/include/asm/tlbflush.h VM_WARN_ON_ONCE(current_mm->pgd != __va(read_cr3_pa()));