--- zzzz-none-000/linux-3.10.107/arch/arc/include/asm/thread_info.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/arc/include/asm/thread_info.h	2021-02-04 17:41:59.000000000 +0000
@@ -16,8 +16,6 @@
 #ifndef _ASM_THREAD_INFO_H
 #define _ASM_THREAD_INFO_H
 
-#ifdef __KERNEL__
-
 #include <asm/page.h>
 
 #ifdef CONFIG_16KSTACKS
@@ -27,6 +25,7 @@
 #endif
 
 #define THREAD_SIZE     (PAGE_SIZE << THREAD_SIZE_ORDER)
+#define THREAD_SHIFT	(PAGE_SHIFT << THREAD_SIZE_ORDER)
 
 #ifndef __ASSEMBLY__
 
@@ -45,10 +44,8 @@
 	int preempt_count;		/* 0 => preemptable, <0 => BUG */
 	struct task_struct *task;	/* main task structure */
 	mm_segment_t addr_limit;	/* thread address space */
-	struct exec_domain *exec_domain;/* execution domain */
 	__u32 cpu;			/* current CPU */
 	unsigned long thr_ptr;		/* TLS ptr */
-	struct restart_block restart_block;
 };
 
 /*
@@ -59,14 +56,10 @@
 #define INIT_THREAD_INFO(tsk)			\
 {						\
 	.task       = &tsk,			\
-	.exec_domain    = &default_exec_domain,	\
 	.flags      = 0,			\
 	.cpu        = 0,			\
 	.preempt_count  = INIT_PREEMPT_COUNT,	\
 	.addr_limit = KERNEL_DS,		\
-	.restart_block  = {			\
-		.fn = do_no_restart_syscall,	\
-	},					\
 }
 
 #define init_thread_info    (init_thread_union.thread_info)
@@ -80,8 +73,6 @@
 
 #endif /* !__ASSEMBLY__ */
 
-#define PREEMPT_ACTIVE      0x10000000
-
 /*
  * thread information flags
  * - these are process state flags that various assembly files may need to
@@ -116,6 +107,4 @@
  * syscall, so all that reamins to be tested is _TIF_WORK_MASK
  */
 
-#endif /* __KERNEL__ */
-
 #endif /* _ASM_THREAD_INFO_H */