ARC: [Review] Prevent incorrect syscall restarts

[platform/adaptation/renesas_rcar/renesas_kernel.git] / arch / arc / include / asm / ptrace.h

diff --git a/arch/arc/include/asm/ptrace.h b/arch/arc/include/asm/ptrace.h
index 3ec89f4..a98957a 100644 (file)
--- a/arch/arc/include/asm/ptrace.h
+++ b/arch/arc/include/asm/ptrace.h
@@ -100,6 +100,9 @@ struct callee_regs {
 #define in_syscall(regs)    (regs->event & orig_r8_IS_SCALL)
 #define in_brkpt_trap(regs) (regs->event & orig_r8_IS_BRKPT)
 
+#define syscall_wont_restart(regs) (regs->event |= orig_r8_IS_SCALL_RESTARTED)
+#define syscall_restartable(regs) !(regs->event &  orig_r8_IS_SCALL_RESTARTED)
+
 #define current_pt_regs()                                      \
 ({                                                             \
        /* open-coded current_thread_info() */                  \