diff options
Diffstat (limited to 'arch/x86/kernel/signal_64.c')
| -rw-r--r-- | arch/x86/kernel/signal_64.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c index 38d806467c0f..ab0178ebe00a 100644 --- a/arch/x86/kernel/signal_64.c +++ b/arch/x86/kernel/signal_64.c @@ -349,16 +349,12 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, } /* - * If TF is set due to a debugger (PT_DTRACE), clear the TF - * flag so that register information in the sigcontext is - * correct. + * If TF is set due to a debugger (TIF_FORCED_TF), clear the TF + * flag so that register information in the sigcontext is correct. */ - if (unlikely(regs->eflags & TF_MASK)) { - if (likely(current->ptrace & PT_DTRACE)) { - current->ptrace &= ~PT_DTRACE; - regs->eflags &= ~TF_MASK; - } - } + if (unlikely(regs->eflags & X86_EFLAGS_TF) && + likely(test_and_clear_thread_flag(TIF_FORCED_TF))) + regs->eflags &= ~X86_EFLAGS_TF; #ifdef CONFIG_IA32_EMULATION if (test_thread_flag(TIF_IA32)) { |