kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/arch/arm/include/asm/thread_info.h
..
..
@@ -1,11 +1,8 @@
1
+/* SPDX-License-Identifier: GPL-2.0-only */
1
2
 /*
2
3
  *  arch/arm/include/asm/thread_info.h
3
4
  *
4
5
  *  Copyright (C) 2002 Russell King.
5
- *
6
- * This program is free software; you can redistribute it and/or modify
7
- * it under the terms of the GNU General Public License version 2 as
8
- * published by the Free Software Foundation.
9
6
  */
10
7
 #ifndef __ASM_ARM_THREAD_INFO_H
11
8
 #define __ASM_ARM_THREAD_INFO_H
..
..
@@ -53,6 +50,9 @@
53
50
 	struct task_struct	*task;		/* main task structure */
54
51
 	__u32			cpu;		/* cpu */
55
52
 	__u32			cpu_domain;	/* cpu domain */
53
+#ifdef CONFIG_STACKPROTECTOR_PER_TASK
54
+	unsigned long		stack_canary;
55
+#endif
56
56
 	struct cpu_context_save	cpu_context;	/* cpu context */
57
57
 	__u32			syscall;	/* syscall number */
58
58
 	__u8			used_cp[16];	/* thread used copro */
..
..
@@ -74,11 +74,6 @@
74
74
 	.preempt_count	= INIT_PREEMPT_COUNT,				\
75
75
 	.addr_limit	= KERNEL_DS,					\
76
76
 }
77
-
78
-/*
79
- * how to get the current stack pointer in C
80
- */
81
-register unsigned long current_stack_pointer asm ("sp");
82
77
 
83
78
 /*
84
79
  * how to get the thread information struct from C
..
..
@@ -131,6 +126,8 @@
131
126
  * thread information flags:
132
127
  *  TIF_USEDFPU		- FPU was used by this task this quantum (SMP)
133
128
  *  TIF_POLLING_NRFLAG	- true if poll_idle() is polling TIF_NEED_RESCHED
129
+ *
130
+ * Any bit in the range of 0..15 will cause do_work_pending() to be invoked.
134
131
  */
135
132
 #define TIF_SIGPENDING		0	/* signal pending */
136
133
 #define TIF_NEED_RESCHED	1	/* rescheduling necessary */
..
..
@@ -140,8 +137,8 @@
140
137
 #define TIF_SYSCALL_AUDIT	5	/* syscall auditing active */
141
138
 #define TIF_SYSCALL_TRACEPOINT	6	/* syscall tracepoint instrumentation */
142
139
 #define TIF_SECCOMP		7	/* seccomp syscall filtering active */
140
+#define TIF_NOTIFY_SIGNAL	8	/* signal notifications exist */
143
141
 
144
-#define TIF_NOHZ		12	/* in adaptive nohz mode */
145
142
 #define TIF_USING_IWMMXT	17
146
143
 #define TIF_MEMDIE		18	/* is terminating due to OOM killer */
147
144
 #define TIF_RESTORE_SIGMASK	20
..
..
@@ -154,6 +151,7 @@
154
151
 #define _TIF_SYSCALL_AUDIT	(1 << TIF_SYSCALL_AUDIT)
155
152
 #define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)
156
153
 #define _TIF_SECCOMP		(1 << TIF_SECCOMP)
154
+#define _TIF_NOTIFY_SIGNAL	(1 << TIF_NOTIFY_SIGNAL)
157
155
 #define _TIF_USING_IWMMXT	(1 << TIF_USING_IWMMXT)
158
156
 
159
157
 /* Checks for any syscall work in entry-common.S */
..
..
@@ -164,7 +162,8 @@
164
162
  * Change these and you break ASM code in entry-common.S
165
163
  */
166
164
 #define _TIF_WORK_MASK		(_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
167
-				 _TIF_NOTIFY_RESUME | _TIF_UPROBE)
165
+				 _TIF_NOTIFY_RESUME | _TIF_UPROBE | \
166
+				 _TIF_NOTIFY_SIGNAL)
168
167
 
169
168
 #endif /* __KERNEL__ */
170
169
 #endif /* __ASM_ARM_THREAD_INFO_H */