diff options
Diffstat (limited to 'arch/s390/kernel/irq.c')
| -rw-r--r-- | arch/s390/kernel/irq.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index 3a3145c4a3ba..cb7099682340 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -138,10 +138,13 @@ void noinstr do_io_irq(struct pt_regs *regs) struct pt_regs *old_regs = set_irq_regs(regs); int from_idle; - irq_enter(); + irq_enter_rcu(); - if (user_mode(regs)) + if (user_mode(regs)) { update_timer_sys(); + if (static_branch_likely(&cpu_has_bear)) + current->thread.last_break = regs->last_break; + } from_idle = !user_mode(regs) && regs->psw.addr == (unsigned long)psw_idle_exit; if (from_idle) @@ -155,7 +158,8 @@ void noinstr do_io_irq(struct pt_regs *regs) do_irq_async(regs, IO_INTERRUPT); } while (MACHINE_IS_LPAR && irq_pending(regs)); - irq_exit(); + irq_exit_rcu(); + set_irq_regs(old_regs); irqentry_exit(regs, state); @@ -169,10 +173,13 @@ void noinstr do_ext_irq(struct pt_regs *regs) struct pt_regs *old_regs = set_irq_regs(regs); int from_idle; - irq_enter(); + irq_enter_rcu(); - if (user_mode(regs)) + if (user_mode(regs)) { update_timer_sys(); + if (static_branch_likely(&cpu_has_bear)) + current->thread.last_break = regs->last_break; + } regs->int_code = S390_lowcore.ext_int_code_addr; regs->int_parm = S390_lowcore.ext_params; @@ -184,7 +191,7 @@ void noinstr do_ext_irq(struct pt_regs *regs) do_irq_async(regs, EXT_INTERRUPT); - irq_exit(); + irq_exit_rcu(); set_irq_regs(old_regs); irqentry_exit(regs, state); |