Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[platform/adaptation/renesas_rcar/renesas_kernel.git] / arch / x86 / kernel / ptrace.c

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 861a9d1..b00b33a 100644 (file)
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -21,6 +21,7 @@
 #include <linux/signal.h>
 #include <linux/perf_event.h>
 #include <linux/hw_breakpoint.h>
+#include <linux/rcupdate.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -1460,6 +1461,8 @@ long syscall_trace_enter(struct pt_regs *regs)
 {
        long ret = 0;
 
+       rcu_user_exit();
+
        /*
         * If we stepped into a sysenter/syscall insn, it trapped in
         * kernel mode; do_debug() cleared TF and set TIF_SINGLESTEP.
@@ -1523,4 +1526,6 @@ void syscall_trace_leave(struct pt_regs *regs)
                        !test_thread_flag(TIF_SYSCALL_EMU);
        if (step || test_thread_flag(TIF_SYSCALL_TRACE))
                tracehook_report_syscall_exit(regs, step);
+
+       rcu_user_enter();
 }