[PATCH v5 11/23] arm64:ilp32: add is_ilp32_compat_{task, thread} and TIF_32BIT_AARCH64

@@ -319,6 +319,26 @@ static inline int is_a32_compat_thread(struct thread_info *thread)
 }
 #endif
 
+#ifdef CONFIG_ARM64_ILP32
+static inline int is_ilp32_compat_task(void)
+{
+	return test_thread_flag(TIF_32BIT_AARCH64);
+}
+static inline int is_ilp32_compat_thread(struct thread_info *thread)
+{
+	return test_ti_thread_flag(thread, TIF_32BIT_AARCH64);
+}
+#else
+static inline int is_ilp32_compat_task(void)
+{
+	return 0;
+}
+static inline int is_ilp32_compat_thread(struct thread_info *thread)
+{
+	return 0;
+}
+#endif
+
 #else /* !CONFIG_COMPAT */
 
 static inline int is_compat_thread(struct thread_info *thread)

@@ -330,17 +350,25 @@ static inline int is_a32_compat_task(void)
 {
 	return 0;
 }
+static inline int is_ilp32_compat_task(void)
+{
+	return 0;
+}
+static inline int is_ilp32_compat_thread(struct thread_info *thread)
+{
+	return 0;
+}
 
 #endif /* CONFIG_COMPAT */
 
 static inline int is_compat_task(void)
 {
-	return is_a32_compat_task();
+	return is_a32_compat_task() || is_ilp32_compat_task();
 }
 
 static inline int is_compat_thread(struct thread_info *thread)
 {
-	return is_a32_compat_thread(thread);
+	return is_a32_compat_thread(thread) || is_ilp32_compat_thread(thread);
 }
 #endif /* __KERNEL__ */
 #endif /* __ASM_COMPAT_H */

@@ -112,6 +112,7 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_SINGLESTEP		21
 #define TIF_32BIT		22	/* AARCH32 process */
 #define TIF_SWITCH_MM		23	/* deferred switch_mm */
+#define TIF_32BIT_AARCH64	24	/* 32 bit process on AArch64(ILP32) */
 
 #define _TIF_SIGPENDING		(1 << TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED	(1 << TIF_NEED_RESCHED)