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sched: constify sched.h 

Add const to some struct task_struct * uses

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Joe Perches 2007-10-24 18:23:50 +02:00 committed by Ingo Molnar
parent b3da2a73ff
commit a8972ccf00
1 changed files with 14 additions and 14 deletions
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28
include/linux/sched.h
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@ -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);
}