From: Tejun Heo <tj@kernel.org>
Date: Sat, 20 Aug 2011 09:31:40 +0000 (+0200)
Subject: freezer: remove should_send_signal() and update frozen()
X-Git-Tag: next-20110822~18^2^2
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7b5b95b3f51a28ec008a295e5247436637220f41;p=karo-tx-linux.git

freezer: remove should_send_signal() and update frozen()

should_send_signal() is only used in freezer.c.  Exporting them only
increases chance of abuse.  Open code the two users and remove it.

Update frozen() to return bool.

Signed-off-by: Tejun Heo <tj@kernel.org>
---

diff --git a/include/linux/freezer.h b/include/linux/freezer.h
index 11b2bd9a02e8..122b5ce186df 100644
--- a/include/linux/freezer.h
+++ b/include/linux/freezer.h
@@ -15,7 +15,7 @@ extern bool pm_nosig_freezing;		/* PM nosig freezing in effect */
 /*
  * Check if a process has been frozen
  */
-static inline int frozen(struct task_struct *p)
+static inline bool frozen(struct task_struct *p)
 {
 	return p->flags & PF_FROZEN;
 }
@@ -32,11 +32,6 @@ static inline bool freezing(struct task_struct *p)
 	return freezing_slow_path(p);
 }
 
-static inline bool should_send_signal(struct task_struct *p)
-{
-	return !(p->flags & PF_FREEZER_NOSIG);
-}
-
 /* Takes and releases task alloc lock using task_lock() */
 extern void __thaw_task(struct task_struct *t);
 
@@ -156,7 +151,7 @@ static inline bool set_freezable_with_signal(void)
 	__retval;							\
 })
 #else /* !CONFIG_FREEZER */
-static inline int frozen(struct task_struct *p) { return 0; }
+static inline bool frozen(struct task_struct *p) { return false; }
 static inline bool freezing(struct task_struct *p) { return false; }
 
 static inline bool __refrigerator(bool check_kthr_stop) { return false; }
diff --git a/kernel/freezer.c b/kernel/freezer.c
index 995bddf82e56..466ea6bd7ff0 100644
--- a/kernel/freezer.c
+++ b/kernel/freezer.c
@@ -129,7 +129,7 @@ bool freeze_task(struct task_struct *p, bool sig_only)
 		return false;
 	}
 
-	if (should_send_signal(p)) {
+	if (!(p->flags & PF_FREEZER_NOSIG)) {
 		fake_signal_wake_up(p);
 		/*
 		 * fake_signal_wake_up() goes through p's scheduler