1 #ifndef __TOOLS_LINUX_SCHED_H
2 #define __TOOLS_LINUX_SCHED_H
6 #include <linux/atomic.h>
8 #include <linux/completion.h>
9 #include <linux/jiffies.h>
10 #include <linux/time64.h>
12 #define TASK_RUNNING 0
13 #define TASK_INTERRUPTIBLE 1
14 #define TASK_UNINTERRUPTIBLE 2
15 #define __TASK_STOPPED 4
16 #define __TASK_TRACED 8
17 /* in tsk->exit_state */
19 #define EXIT_ZOMBIE 32
20 #define EXIT_TRACE (EXIT_ZOMBIE | EXIT_DEAD)
21 /* in tsk->state again */
23 #define TASK_WAKEKILL 128
24 #define TASK_WAKING 256
25 #define TASK_PARKED 512
26 #define TASK_NOLOAD 1024
28 #define TASK_IDLE_WORKER 4096
29 #define TASK_STATE_MAX 8192
31 /* Convenience macros for the sake of set_task_state */
32 #define TASK_KILLABLE (TASK_WAKEKILL | TASK_UNINTERRUPTIBLE)
33 #define TASK_STOPPED (TASK_WAKEKILL | __TASK_STOPPED)
34 #define TASK_TRACED (TASK_WAKEKILL | __TASK_TRACED)
36 #define TASK_IDLE (TASK_UNINTERRUPTIBLE | TASK_NOLOAD)
38 /* Convenience macros for the sake of wake_up */
39 #define TASK_NORMAL (TASK_INTERRUPTIBLE | TASK_UNINTERRUPTIBLE)
40 #define TASK_ALL (TASK_NORMAL | __TASK_STOPPED | __TASK_TRACED)
42 #define TASK_COMM_LEN 16
44 #define PF_EXITING 0x00000004 /* getting shut down */
45 #define PF_EXITPIDONE 0x00000008 /* pi exit done on shut down */
46 #define PF_VCPU 0x00000010 /* I'm a virtual CPU */
47 #define PF_WQ_WORKER 0x00000020 /* I'm a workqueue worker */
48 #define PF_FORKNOEXEC 0x00000040 /* forked but didn't exec */
49 #define PF_MCE_PROCESS 0x00000080 /* process policy on mce errors */
50 #define PF_SUPERPRIV 0x00000100 /* used super-user privileges */
51 #define PF_DUMPCORE 0x00000200 /* dumped core */
52 #define PF_SIGNALED 0x00000400 /* killed by a signal */
53 #define PF_MEMALLOC 0x00000800 /* Allocating memory */
54 #define PF_NPROC_EXCEEDED 0x00001000 /* set_user noticed that RLIMIT_NPROC was exceeded */
55 #define PF_USED_MATH 0x00002000 /* if unset the fpu must be initialized before use */
56 #define PF_USED_ASYNC 0x00004000 /* used async_schedule*(), used by module init */
57 #define PF_NOFREEZE 0x00008000 /* this thread should not be frozen */
58 #define PF_FROZEN 0x00010000 /* frozen for system suspend */
59 #define PF_FSTRANS 0x00020000 /* inside a filesystem transaction */
60 #define PF_KSWAPD 0x00040000 /* I am kswapd */
61 #define PF_MEMALLOC_NOIO 0x00080000 /* Allocating memory without IO involved */
62 #define PF_LESS_THROTTLE 0x00100000 /* Throttle me less: I clean memory */
63 #define PF_KTHREAD 0x00200000 /* I am a kernel thread */
64 #define PF_RANDOMIZE 0x00400000 /* randomize virtual address space */
65 #define PF_SWAPWRITE 0x00800000 /* Allowed to write to swap */
66 #define PF_NO_SETAFFINITY 0x04000000 /* Userland is not allowed to meddle with cpus_allowed */
67 #define PF_MCE_EARLY 0x08000000 /* Early kill for mce process policy */
68 #define PF_MUTEX_TESTER 0x20000000 /* Thread belongs to the rt mutex tester */
69 #define PF_FREEZER_SKIP 0x40000000 /* Freezer should not count it as freezable */
74 int (*thread_fn)(void *);
81 unsigned long kthread_flags;
82 struct completion exited;
87 char comm[TASK_COMM_LEN];
90 struct bio_list *bio_list;
93 extern __thread struct task_struct *current;
95 #define __set_task_state(tsk, state_value) \
96 do { (tsk)->state = (state_value); } while (0)
97 #define set_task_state(tsk, state_value) \
98 smp_store_mb((tsk)->state, (state_value))
99 #define __set_current_state(state_value) \
100 do { current->state = (state_value); } while (0)
101 #define set_current_state(state_value) \
102 smp_store_mb(current->state, (state_value))
104 #define get_task_struct(tsk) do { atomic_inc(&(tsk)->usage); } while(0)
106 extern void __put_task_struct(struct task_struct *t);
108 static inline void put_task_struct(struct task_struct *t)
110 if (atomic_dec_and_test(&t->usage))
111 __put_task_struct(t);
114 #define cond_resched()
115 #define need_resched() 0
119 #define MAX_SCHEDULE_TIMEOUT LONG_MAX
120 long schedule_timeout(long timeout);
122 static inline void io_schedule(void)
127 static inline long io_schedule_timeout(long timeout)
129 return schedule_timeout(timeout);
132 int wake_up_process(struct task_struct *);
134 static inline u64 ktime_get_seconds(void)
138 clock_gettime(CLOCK_MONOTONIC, &ts);
143 static inline u64 ktime_get_real_seconds(void)
147 clock_gettime(CLOCK_REALTIME, &ts);
152 static inline void ktime_get_coarse_real_ts64(struct timespec64 *ts)
154 clock_gettime(CLOCK_REALTIME_COARSE, ts);
157 #define current_kernel_time64() current_kernel_time()
158 #define CURRENT_TIME (current_kernel_time())
160 #endif /* __TOOLS_LINUX_SCHED_H */