container freezer: rename check_if_frozen()
check_if_frozen() sounds like it should return something when in fact it's
just updating the freezer state.
Signed-off-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/kernel/cgroup_freezer.c b/kernel/cgroup_freezer.c
index 6e4280d..e950569 100644
--- a/kernel/cgroup_freezer.c
+++ b/kernel/cgroup_freezer.c
@@ -201,8 +201,8 @@
/*
* caller must hold freezer->lock
*/
-static void check_if_frozen(struct cgroup *cgroup,
- struct freezer *freezer)
+static void update_freezer_state(struct cgroup *cgroup,
+ struct freezer *freezer)
{
struct cgroup_iter it;
struct task_struct *task;
@@ -222,6 +222,10 @@
*/
if (nfrozen == ntotal)
freezer->state = CGROUP_FROZEN;
+ else if (nfrozen > 0)
+ freezer->state = CGROUP_FREEZING;
+ else
+ freezer->state = CGROUP_THAWED;
cgroup_iter_end(cgroup, &it);
}
@@ -240,7 +244,7 @@
if (state == CGROUP_FREEZING) {
/* We change from FREEZING to FROZEN lazily if the cgroup was
* only partially frozen when we exitted write. */
- check_if_frozen(cgroup, freezer);
+ update_freezer_state(cgroup, freezer);
state = freezer->state;
}
spin_unlock_irq(&freezer->lock);
@@ -301,7 +305,7 @@
freezer = cgroup_freezer(cgroup);
spin_lock_irq(&freezer->lock);
- check_if_frozen(cgroup, freezer); /* may update freezer->state */
+ update_freezer_state(cgroup, freezer);
if (goal_state == freezer->state)
goto out;
switch (freezer->state) {
