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authorTejun Heo <tj@kernel.org>2011-11-21 12:32:25 -0800
committerTejun Heo <tj@kernel.org>2011-11-21 12:32:25 -0800
commit948246f70a811c872b9d93bb4a8ab5823c4c79e0 (patch)
tree385fee0509ba5e05f1f651c8b86b7b56a0518163
parentd88e4cb67197d007fb778d62fe17360e970d5bfa (diff)
downloadlinux-sh-948246f70a811c872b9d93bb4a8ab5823c4c79e0.tar.gz
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>
-rw-r--r--include/linux/freezer.h9
-rw-r--r--kernel/freezer.c2
2 files changed, 3 insertions, 8 deletions
diff --git a/include/linux/freezer.h b/include/linux/freezer.h
index 8e29f2b7ce11..3d50913d39d0 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);
@@ -166,7 +161,7 @@ static inline void 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 f53cd5aa5b2e..95a123844241 100644
--- a/kernel/freezer.c
+++ b/kernel/freezer.c
@@ -132,7 +132,7 @@ 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