]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* thread_info.h: common low-level thread information accessors |
2 | * | |
3 | * Copyright (C) 2002 David Howells (dhowells@redhat.com) | |
4 | * - Incorporating suggestions made by Linus Torvalds | |
5 | */ | |
6 | ||
7 | #ifndef _LINUX_THREAD_INFO_H | |
8 | #define _LINUX_THREAD_INFO_H | |
9 | ||
ce6bd420 SR |
10 | #include <linux/types.h> |
11 | ||
1da177e4 | 12 | /* |
ce6bd420 | 13 | * System call restart block. |
1da177e4 LT |
14 | */ |
15 | struct restart_block { | |
16 | long (*fn)(struct restart_block *); | |
ce6bd420 SR |
17 | union { |
18 | struct { | |
19 | unsigned long arg0, arg1, arg2, arg3; | |
20 | }; | |
21 | /* For futex_wait */ | |
22 | struct { | |
23 | u32 *uaddr; | |
24 | u32 val; | |
25 | u32 flags; | |
cd689985 | 26 | u32 bitset; |
ce6bd420 SR |
27 | u64 time; |
28 | } futex; | |
29 | }; | |
1da177e4 LT |
30 | }; |
31 | ||
32 | extern long do_no_restart_syscall(struct restart_block *parm); | |
33 | ||
34 | #include <linux/bitops.h> | |
35 | #include <asm/thread_info.h> | |
36 | ||
37 | #ifdef __KERNEL__ | |
38 | ||
39 | /* | |
40 | * flag set/clear/test wrappers | |
41 | * - pass TIF_xxxx constants to these functions | |
42 | */ | |
43 | ||
1da177e4 LT |
44 | static inline void set_ti_thread_flag(struct thread_info *ti, int flag) |
45 | { | |
5548fecd | 46 | set_bit(flag, (unsigned long *)&ti->flags); |
1da177e4 LT |
47 | } |
48 | ||
49 | static inline void clear_ti_thread_flag(struct thread_info *ti, int flag) | |
50 | { | |
5548fecd | 51 | clear_bit(flag, (unsigned long *)&ti->flags); |
1da177e4 LT |
52 | } |
53 | ||
54 | static inline int test_and_set_ti_thread_flag(struct thread_info *ti, int flag) | |
55 | { | |
5548fecd | 56 | return test_and_set_bit(flag, (unsigned long *)&ti->flags); |
1da177e4 LT |
57 | } |
58 | ||
59 | static inline int test_and_clear_ti_thread_flag(struct thread_info *ti, int flag) | |
60 | { | |
5548fecd | 61 | return test_and_clear_bit(flag, (unsigned long *)&ti->flags); |
1da177e4 LT |
62 | } |
63 | ||
64 | static inline int test_ti_thread_flag(struct thread_info *ti, int flag) | |
65 | { | |
5548fecd | 66 | return test_bit(flag, (unsigned long *)&ti->flags); |
1da177e4 LT |
67 | } |
68 | ||
3b66a1ed RZ |
69 | #define set_thread_flag(flag) \ |
70 | set_ti_thread_flag(current_thread_info(), flag) | |
71 | #define clear_thread_flag(flag) \ | |
72 | clear_ti_thread_flag(current_thread_info(), flag) | |
73 | #define test_and_set_thread_flag(flag) \ | |
74 | test_and_set_ti_thread_flag(current_thread_info(), flag) | |
75 | #define test_and_clear_thread_flag(flag) \ | |
76 | test_and_clear_ti_thread_flag(current_thread_info(), flag) | |
77 | #define test_thread_flag(flag) \ | |
78 | test_ti_thread_flag(current_thread_info(), flag) | |
79 | ||
80 | #define set_need_resched() set_thread_flag(TIF_NEED_RESCHED) | |
81 | #define clear_need_resched() clear_thread_flag(TIF_NEED_RESCHED) | |
1da177e4 LT |
82 | |
83 | #endif | |
84 | ||
85 | #endif /* _LINUX_THREAD_INFO_H */ |