diff options
Diffstat (limited to 'arch/s390/kernel')
| -rw-r--r-- | arch/s390/kernel/unwind_bc.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/s390/kernel/unwind_bc.c b/arch/s390/kernel/unwind_bc.c index ac6cfab567d1..c5ebb8a4cdd6 100644 --- a/arch/s390/kernel/unwind_bc.c +++ b/arch/s390/kernel/unwind_bc.c @@ -36,6 +36,12 @@ static bool update_stack_info(struct unwind_state *state, unsigned long sp) return true; } +static inline bool is_task_pt_regs(struct unwind_state *state, + struct pt_regs *regs) +{ + return task_pt_regs(state->task) == regs; +} + bool unwind_next_frame(struct unwind_state *state) { struct stack_info *info = &state->stack_info; @@ -69,7 +75,7 @@ bool unwind_next_frame(struct unwind_state *state) if (!on_stack(info, sp, sizeof(struct pt_regs))) goto out_err; regs = (struct pt_regs *) sp; - if (READ_ONCE_NOCHECK(regs->psw.mask) & PSW_MASK_PSTATE) + if (is_task_pt_regs(state, regs)) goto out_stop; ip = READ_ONCE_NOCHECK(regs->psw.addr); sp = READ_ONCE_NOCHECK(regs->gprs[15]); |