unsigned long sp = current_stack_pointer;
pgd_t *pgd = pgd_offset(mm, sp);
- if (CONFIG_PGTABLE_LEVELS > 4) {
+ if (pgtable_l5_enabled) {
if (unlikely(pgd_none(*pgd))) {
pgd_t *pgd_ref = pgd_offset_k(sp);
#endif
this_cpu_write(cpu_tlbstate.is_lazy, false);
+ /*
+ * The membarrier system call requires a full memory barrier and
+ * core serialization before returning to user-space, after
+ * storing to rq->curr. Writing to CR3 provides that full
+ * memory barrier and core serializing instruction.
+ */
if (real_prev == next) {
VM_WARN_ON(this_cpu_read(cpu_tlbstate.ctxs[prev_asid].ctx_id) !=
next->context.ctx_id);
{
int cpu;
- struct flush_tlb_info info = {
+ struct flush_tlb_info info __aligned(SMP_CACHE_BYTES) = {
.mm = mm,
};