kernel-ark/include/linux/thread_info.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

93 lines
1.9 KiB
C

/* thread_info.h: common low-level thread information accessors
*
* Copyright (C) 2002 David Howells (dhowells@redhat.com)
* - Incorporating suggestions made by Linus Torvalds
*/
#ifndef _LINUX_THREAD_INFO_H
#define _LINUX_THREAD_INFO_H
/*
* System call restart block.
*/
struct restart_block {
long (*fn)(struct restart_block *);
unsigned long arg0, arg1, arg2, arg3;
};
extern long do_no_restart_syscall(struct restart_block *parm);
#include <linux/bitops.h>
#include <asm/thread_info.h>
#ifdef __KERNEL__
/*
* flag set/clear/test wrappers
* - pass TIF_xxxx constants to these functions
*/
static inline void set_thread_flag(int flag)
{
set_bit(flag,&current_thread_info()->flags);
}
static inline void clear_thread_flag(int flag)
{
clear_bit(flag,&current_thread_info()->flags);
}
static inline int test_and_set_thread_flag(int flag)
{
return test_and_set_bit(flag,&current_thread_info()->flags);
}
static inline int test_and_clear_thread_flag(int flag)
{
return test_and_clear_bit(flag,&current_thread_info()->flags);
}
static inline int test_thread_flag(int flag)
{
return test_bit(flag,&current_thread_info()->flags);
}
static inline void set_ti_thread_flag(struct thread_info *ti, int flag)
{
set_bit(flag,&ti->flags);
}
static inline void clear_ti_thread_flag(struct thread_info *ti, int flag)
{
clear_bit(flag,&ti->flags);
}
static inline int test_and_set_ti_thread_flag(struct thread_info *ti, int flag)
{
return test_and_set_bit(flag,&ti->flags);
}
static inline int test_and_clear_ti_thread_flag(struct thread_info *ti, int flag)
{
return test_and_clear_bit(flag,&ti->flags);
}
static inline int test_ti_thread_flag(struct thread_info *ti, int flag)
{
return test_bit(flag,&ti->flags);
}
static inline void set_need_resched(void)
{
set_thread_flag(TIF_NEED_RESCHED);
}
static inline void clear_need_resched(void)
{
clear_thread_flag(TIF_NEED_RESCHED);
}
#endif
#endif /* _LINUX_THREAD_INFO_H */