1 files changed, 16 insertions, 2 deletions

diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index f838b36cc765..9b4733c12395 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -248,10 +248,20 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                         break;
                 case FPC_EIR: { /* implementation / version register */
                         unsigned int flags;
+#ifdef CONFIG_MIPS_MT_SMTC
+                        unsigned int irqflags;
+                        unsigned int mtflags;
+#endif /* CONFIG_MIPS_MT_SMTC */
 
                         if (!cpu_has_fpu)
                                 break;
 
+#ifdef CONFIG_MIPS_MT_SMTC
+                        /* Read-modify-write of Status must be atomic */
+                        local_irq_save(irqflags);
+                        mtflags = dmt();
+#endif /* CONFIG_MIPS_MT_SMTC */
+
                         preempt_disable();
                         if (cpu_has_mipsmt) {
                                 unsigned int vpflags = dvpe();
@@ -266,6 +276,10 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                                 __asm__ __volatile__("cfc1\t%0,$0": "=r" (tmp));
                                 write_c0_status(flags);
                         }
+#ifdef CONFIG_MIPS_MT_SMTC
+                        emt(mtflags);
+                        local_irq_restore(irqflags);
+#endif /* CONFIG_MIPS_MT_SMTC */
                         preempt_enable();
                         break;
                 }
@@ -469,7 +483,7 @@ static inline int audit_arch(void)
 asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit)
 {
         if (unlikely(current->audit_context) && entryexit)
-                audit_syscall_exit(current, AUDITSC_RESULT(regs->regs[2]),
+                audit_syscall_exit(AUDITSC_RESULT(regs->regs[2]),
                                    regs->regs[2]);
 
         if (!(current->ptrace & PT_PTRACED))
@@ -493,7 +507,7 @@ asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit)
         }
  out:
         if (unlikely(current->audit_context) && !entryexit)
-                audit_syscall_entry(current, audit_arch(), regs->regs[2],
+                audit_syscall_entry(audit_arch(), regs->regs[2],
                                     regs->regs[4], regs->regs[5],
                                     regs->regs[6], regs->regs[7]);
 }