freezer: move frozen_process() to kernel/power/process.c

Other than refrigerator, no one else calls frozen_process(). So move it from include/linux/freezer.h to kernel/power/process.c. Also, since a task can be marked as frozen by itself, we don't need to pass the (struct task_struct *p) parameter to frozen_process(). Signed-off-by: Gautham R Shenoy <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: Pavel Machek <[email protected]> Cc: "Eric W. Biederman" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
mna · May 24, 2007 · 88f18ba · 88f18ba
1 parent 5fcc57f
commit 88f18ba
Show file tree

Hide file tree

Showing 2 changed files with 13 additions and 14 deletions.
diff --git a/include/linux/freezer.h b/include/linux/freezer.h
@@ -58,18 +58,6 @@ static inline int thaw_process(struct task_struct *p)
 	return 0;
 }
 
-/*
- * freezing is complete, mark process as frozen
- */
-static inline void frozen_process(struct task_struct *p)
-{
-	if (!unlikely(p->flags & PF_NOFREEZE)) {
-		p->flags |= PF_FROZEN;
-		wmb();
-	}
-	clear_tsk_thread_flag(p, TIF_FREEZE);
-}
-
 extern void refrigerator(void);
 extern int freeze_processes(void);
 extern void thaw_processes(void);
@@ -132,7 +120,6 @@ static inline int frozen(struct task_struct *p) { return 0; }
 static inline int freezing(struct task_struct *p) { return 0; }
 static inline void freeze(struct task_struct *p) { BUG(); }
 static inline int thaw_process(struct task_struct *p) { return 1; }
-static inline void frozen_process(struct task_struct *p) { BUG(); }
 
 static inline void refrigerator(void) {}
 static inline int freeze_processes(void) { BUG(); return 0; }

diff --git a/kernel/power/process.c b/kernel/power/process.c
@@ -31,6 +31,18 @@ static inline int freezeable(struct task_struct * p)
 	return 1;
 }
 
+/*
+ * freezing is complete, mark current process as frozen
+ */
+static inline void frozen_process(void)
+{
+	if (!unlikely(current->flags & PF_NOFREEZE)) {
+		current->flags |= PF_FROZEN;
+		wmb();
+	}
+	clear_tsk_thread_flag(current, TIF_FREEZE);
+}
+
 /* Refrigerator is place where frozen processes are stored :-). */
 void refrigerator(void)
 {
@@ -40,7 +52,7 @@ void refrigerator(void)
 
 	task_lock(current);
 	if (freezing(current)) {
-		frozen_process(current);
+		frozen_process();
 		task_unlock(current);
 	} else {
 		task_unlock(current);