linux-kernel - [PATCH] trivial

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Date:	Mon, 27 Aug 2007 13:40:31 -0700
From:	Joe Perches <joe@...ches.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH] trivial - constify sched.h

Add const to some struct task_struct * uses

Signed-off-by: Joe Perches <joe@...ches.com>

---

 include/linux/sched.h |   24 ++++++++++++------------
 1 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index ba78807..71d40a1 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1222,22 +1222,22 @@ 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);
 }
 
-static inline pid_t process_group(struct task_struct *tsk)
+static inline pid_t process_group(const struct task_struct *tsk)
 {
 	return tsk->signal->pgrp;
 }
 
-static inline pid_t signal_session(struct signal_struct *sig)
+static inline pid_t signal_session(const struct signal_struct *sig)
 {
 	return sig->__session;
 }
 
-static inline pid_t process_session(struct task_struct *tsk)
+static inline pid_t process_session(const struct task_struct *tsk)
 {
 	return signal_session(tsk->signal);
 }
@@ -1247,22 +1247,22 @@ static inline void set_signal_session(struct signal_struct *sig, pid_t session)
 	sig->__session = session;
 }
 
-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;
 }
@@ -1275,7 +1275,7 @@ static inline struct pid *task_session(struct task_struct *task)
  * 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;
 }
@@ -1286,7 +1286,7 @@ 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_init(struct task_struct *tsk)
+static inline int is_init(const struct task_struct *tsk)
 {
 	return tsk->pid == 1;
 }
@@ -1639,7 +1639,7 @@ 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;
 }
@@ -1650,7 +1650,7 @@ 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);
 }


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