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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | /* thread_info.h: common low-level thread information accessors |
| 2 | * |
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| 3 | * Copyright (C) 2002 David Howells (dhowells@redhat.com) |
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| 4 | * - Incorporating suggestions made by Linus Torvalds |
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| 5 | */ |
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| 6 | |||
| 7 | #ifndef _LINUX_THREAD_INFO_H |
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| 8 | #define _LINUX_THREAD_INFO_H |
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| 9 | |||
| 10 | /* |
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| 11 | * System call restart block. |
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| 12 | */ |
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| 13 | struct restart_block { |
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| 14 | long (*fn)(struct restart_block *); |
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| 15 | unsigned long arg0, arg1, arg2, arg3; |
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| 16 | }; |
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| 17 | |||
| 18 | extern long do_no_restart_syscall(struct restart_block *parm); |
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| 19 | |||
| 20 | #include <linux/bitops.h> |
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| 21 | #include <asm/thread_info.h> |
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| 22 | |||
| 23 | #ifdef __KERNEL__ |
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| 24 | |||
| 25 | /* |
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| 26 | * flag set/clear/test wrappers |
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| 27 | * - pass TIF_xxxx constants to these functions |
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| 28 | */ |
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| 29 | |||
| 30 | static inline void set_thread_flag(int flag) |
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| 31 | { |
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| 32 | set_bit(flag,¤t_thread_info()->flags); |
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| 33 | } |
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| 34 | |||
| 35 | static inline void clear_thread_flag(int flag) |
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| 36 | { |
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| 37 | clear_bit(flag,¤t_thread_info()->flags); |
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| 38 | } |
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| 39 | |||
| 40 | static inline int test_and_set_thread_flag(int flag) |
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| 41 | { |
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| 42 | return test_and_set_bit(flag,¤t_thread_info()->flags); |
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| 43 | } |
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| 44 | |||
| 45 | static inline int test_and_clear_thread_flag(int flag) |
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| 46 | { |
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| 47 | return test_and_clear_bit(flag,¤t_thread_info()->flags); |
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| 48 | } |
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| 49 | |||
| 50 | static inline int test_thread_flag(int flag) |
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| 51 | { |
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| 52 | return test_bit(flag,¤t_thread_info()->flags); |
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| 53 | } |
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| 54 | |||
| 55 | static inline void set_ti_thread_flag(struct thread_info *ti, int flag) |
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| 56 | { |
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| 57 | set_bit(flag,&ti->flags); |
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| 58 | } |
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| 59 | |||
| 60 | static inline void clear_ti_thread_flag(struct thread_info *ti, int flag) |
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| 61 | { |
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| 62 | clear_bit(flag,&ti->flags); |
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| 63 | } |
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| 64 | |||
| 65 | static inline int test_and_set_ti_thread_flag(struct thread_info *ti, int flag) |
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| 66 | { |
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| 67 | return test_and_set_bit(flag,&ti->flags); |
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| 68 | } |
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| 69 | |||
| 70 | static inline int test_and_clear_ti_thread_flag(struct thread_info *ti, int flag) |
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| 71 | { |
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| 72 | return test_and_clear_bit(flag,&ti->flags); |
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| 73 | } |
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| 74 | |||
| 75 | static inline int test_ti_thread_flag(struct thread_info *ti, int flag) |
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| 76 | { |
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| 77 | return test_bit(flag,&ti->flags); |
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| 78 | } |
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| 79 | |||
| 80 | static inline void set_need_resched(void) |
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| 81 | { |
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| 82 | set_thread_flag(TIF_NEED_RESCHED); |
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| 83 | } |
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| 84 | |||
| 85 | static inline void clear_need_resched(void) |
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| 86 | { |
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| 87 | clear_thread_flag(TIF_NEED_RESCHED); |
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| 88 | } |
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| 89 | |||
| 90 | #endif |
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| 91 | |||
| 92 | #endif /* _LINUX_THREAD_INFO_H */ |