1 /* thread_info.h: common low-level thread information accessors
3 * Copyright (C) 2002 David Howells (dhowells@redhat.com)
4 * - Incorporating suggestions made by Linus Torvalds
7 #ifndef _LINUX_THREAD_INFO_H
8 #define _LINUX_THREAD_INFO_H
10 #include <linux/types.h>
13 struct compat_timespec
;
16 * System call restart block.
18 struct restart_block
{
19 long (*fn
)(struct restart_block
*);
22 unsigned long arg0
, arg1
, arg2
, arg3
;
35 struct timespec __user
*rmtp
;
37 struct compat_timespec __user
*compat_rmtp
;
44 extern long do_no_restart_syscall(struct restart_block
*parm
);
46 #include <linux/bitops.h>
47 #include <asm/thread_info.h>
52 * flag set/clear/test wrappers
53 * - pass TIF_xxxx constants to these functions
56 static inline void set_ti_thread_flag(struct thread_info
*ti
, int flag
)
58 set_bit(flag
, (unsigned long *)&ti
->flags
);
61 static inline void clear_ti_thread_flag(struct thread_info
*ti
, int flag
)
63 clear_bit(flag
, (unsigned long *)&ti
->flags
);
66 static inline int test_and_set_ti_thread_flag(struct thread_info
*ti
, int flag
)
68 return test_and_set_bit(flag
, (unsigned long *)&ti
->flags
);
71 static inline int test_and_clear_ti_thread_flag(struct thread_info
*ti
, int flag
)
73 return test_and_clear_bit(flag
, (unsigned long *)&ti
->flags
);
76 static inline int test_ti_thread_flag(struct thread_info
*ti
, int flag
)
78 return test_bit(flag
, (unsigned long *)&ti
->flags
);
81 #define set_thread_flag(flag) \
82 set_ti_thread_flag(current_thread_info(), flag)
83 #define clear_thread_flag(flag) \
84 clear_ti_thread_flag(current_thread_info(), flag)
85 #define test_and_set_thread_flag(flag) \
86 test_and_set_ti_thread_flag(current_thread_info(), flag)
87 #define test_and_clear_thread_flag(flag) \
88 test_and_clear_ti_thread_flag(current_thread_info(), flag)
89 #define test_thread_flag(flag) \
90 test_ti_thread_flag(current_thread_info(), flag)
92 #define set_need_resched() set_thread_flag(TIF_NEED_RESCHED)
93 #define clear_need_resched() clear_thread_flag(TIF_NEED_RESCHED)
97 #endif /* _LINUX_THREAD_INFO_H */