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Commit a8972ccf authored by Joe Perches's avatar Joe Perches Committed by Ingo Molnar
Browse files

sched: constify sched.h 



Add const to some struct task_struct * uses

Signed-off-by: default avatarJoe Perches <joe@perches.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent b3da2a73

include/linux/sched.h

+14 −14
Original line number Diff line number Diff line
@@ -1196,7 +1196,7 @@ static inline int rt_prio(int prio) 
	return 0;

}



static inline int rt_task(struct task_struct *p)

static inline int rt_task(const struct task_struct *p)

{

	return rt_prio(p->prio);

}
@@ -1211,22 +1211,22 @@ static inline void set_task_pgrp(struct task_struct *tsk, pid_t pgrp) 
	tsk->signal->__pgrp = pgrp;

}



static inline struct pid *task_pid(struct task_struct *task)

static inline struct pid *task_pid(const struct task_struct *task)

{

	return task->pids[PIDTYPE_PID].pid;

}



static inline struct pid *task_tgid(struct task_struct *task)

static inline struct pid *task_tgid(const struct task_struct *task)

{

	return task->group_leader->pids[PIDTYPE_PID].pid;

}



static inline struct pid *task_pgrp(struct task_struct *task)

static inline struct pid *task_pgrp(const struct task_struct *task)

{

	return task->group_leader->pids[PIDTYPE_PGID].pid;

}



static inline struct pid *task_session(struct task_struct *task)

static inline struct pid *task_session(const struct task_struct *task)

{

	return task->group_leader->pids[PIDTYPE_SID].pid;

}
@@ -1255,7 +1255,7 @@ struct pid_namespace; 
 * see also pid_nr() etc in include/linux/pid.h

 */



static inline pid_t task_pid_nr(struct task_struct *tsk)

static inline pid_t task_pid_nr(const struct task_struct *tsk)

{

	return tsk->pid;

}
@@ -1268,7 +1268,7 @@ static inline pid_t task_pid_vnr(struct task_struct *tsk) 
}





static inline pid_t task_tgid_nr(struct task_struct *tsk)

static inline pid_t task_tgid_nr(const struct task_struct *tsk)

{

	return tsk->tgid;

}
@@ -1281,7 +1281,7 @@ static inline pid_t task_tgid_vnr(struct task_struct *tsk) 
}





static inline pid_t task_pgrp_nr(struct task_struct *tsk)

static inline pid_t task_pgrp_nr(const struct task_struct *tsk)

{

	return tsk->signal->__pgrp;

}
@@ -1294,7 +1294,7 @@ static inline pid_t task_pgrp_vnr(struct task_struct *tsk) 
}





static inline pid_t task_session_nr(struct task_struct *tsk)

static inline pid_t task_session_nr(const struct task_struct *tsk)

{

	return tsk->signal->__session;

}
@@ -1321,7 +1321,7 @@ static inline pid_t task_ppid_nr_ns(struct task_struct *tsk, 
 * If pid_alive fails, then pointers within the task structure

 * can be stale and must not be dereferenced.

 */

static inline int pid_alive(struct task_struct *p)

static inline int pid_alive(const struct task_struct *p)

{

	return p->pids[PIDTYPE_PID].pid != NULL;

}
@@ -1332,7 +1332,7 @@ static inline int pid_alive(struct task_struct *p) 
 *

 * Check if a task structure is the first user space task the kernel created.

 */

static inline int is_global_init(struct task_struct *tsk)

static inline int is_global_init(const struct task_struct *tsk)

{

	return tsk->pid == 1;

}
@@ -1469,7 +1469,7 @@ extern int rt_mutex_getprio(struct task_struct *p); 
extern void rt_mutex_setprio(struct task_struct *p, int prio);

extern void rt_mutex_adjust_pi(struct task_struct *p);

#else

static inline int rt_mutex_getprio(struct task_struct *p)

static inline int rt_mutex_getprio(const struct task_struct *p)

{

	return p->normal_prio;

}
@@ -1721,7 +1721,7 @@ extern void wait_task_inactive(struct task_struct * p); 
 * all we care about is that we have a task with the appropriate

 * pid, we don't actually care if we have the right task.

 */

static inline int has_group_leader_pid(struct task_struct *p)

static inline int has_group_leader_pid(const struct task_struct *p)

{

	return p->pid == p->tgid;

}
@@ -1738,7 +1738,7 @@ static inline struct task_struct *next_thread(const struct task_struct *p) 
			  struct task_struct, thread_group);

}



static inline int thread_group_empty(struct task_struct *p)

static inline int thread_group_empty(const struct task_struct *p)

{

	return list_empty(&p->thread_group);

}