projects / mirror_ubuntu-artful-kernel.git / blame
| 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 | ||
| 10 | /* | |
| 11 | * System call restart block. | |
| 12 | */ | |
| 13 | struct restart_block { | |
| 14 | long (*fn)(struct restart_block *); | |
| 15 | unsigned long arg0, arg1, arg2, arg3; | |
| 16 | }; | |
| 17 | ||
| 18 | extern long do_no_restart_syscall(struct restart_block *parm); | |
| 19 | ||
| 20 | #include <linux/bitops.h> | |
| 21 | #include <asm/thread_info.h> | |
| 22 | ||
| 23 | #ifdef __KERNEL__ | |
| 24 | ||
| 25 | /* | |
| 26 | * flag set/clear/test wrappers | |
| 27 | * - pass TIF_xxxx constants to these functions | |
| 28 | */ | |
| 29 | ||
| 30 | static inline void set_thread_flag(int flag) | |
| 31 | { | |
| 32 | set_bit(flag,¤t_thread_info()->flags); | |
| 33 | } | |
| 34 | ||
| 35 | static inline void clear_thread_flag(int flag) | |
| 36 | { | |
| 37 | clear_bit(flag,¤t_thread_info()->flags); | |
| 38 | } | |
| 39 | ||
| 40 | static inline int test_and_set_thread_flag(int flag) | |
| 41 | { | |
| 42 | return test_and_set_bit(flag,¤t_thread_info()->flags); | |
| 43 | } | |
| 44 | ||
| 45 | static inline int test_and_clear_thread_flag(int flag) | |
| 46 | { | |
| 47 | return test_and_clear_bit(flag,¤t_thread_info()->flags); | |
| 48 | } | |
| 49 | ||
| 50 | static inline int test_thread_flag(int flag) | |
| 51 | { | |
| 52 | return test_bit(flag,¤t_thread_info()->flags); | |
| 53 | } | |
| 54 | ||
| 55 | static inline void set_ti_thread_flag(struct thread_info *ti, int flag) | |
| 56 | { | |
| 57 | set_bit(flag,&ti->flags); | |
| 58 | } | |
| 59 | ||
| 60 | static inline void clear_ti_thread_flag(struct thread_info *ti, int flag) | |
| 61 | { | |
| 62 | clear_bit(flag,&ti->flags); | |
| 63 | } | |
| 64 | ||
| 65 | static inline int test_and_set_ti_thread_flag(struct thread_info *ti, int flag) | |
| 66 | { | |
| 67 | return test_and_set_bit(flag,&ti->flags); | |
| 68 | } | |
| 69 | ||
| 70 | static inline int test_and_clear_ti_thread_flag(struct thread_info *ti, int flag) | |
| 71 | { | |
| 72 | return test_and_clear_bit(flag,&ti->flags); | |
| 73 | } | |
| 74 | ||
| 75 | static inline int test_ti_thread_flag(struct thread_info *ti, int flag) | |
| 76 | { | |
| 77 | return test_bit(flag,&ti->flags); | |
| 78 | } | |
| 79 | ||
| 80 | static inline void set_need_resched(void) | |
| 81 | { | |
| 82 | set_thread_flag(TIF_NEED_RESCHED); | |
| 83 | } | |
| 84 | ||
| 85 | static inline void clear_need_resched(void) | |
| 86 | { | |
| 87 | clear_thread_flag(TIF_NEED_RESCHED); | |
| 88 | } | |
| 89 | ||
| 90 | #endif | |
| 91 | ||
| 92 | #endif /* _LINUX_THREAD_INFO_H */ |