lkml.org 
[lkml]   [2014]   [Dec]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCHv3 4/8] cgroup: export cgroup_get() and cgroup_put()
Date
move cgroup_get() and cgroup_put() into cgroup.h so that
they can be called from other places.

Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Aditya Kali <adityakali@google.com>
---
include/linux/cgroup.h | 22 ++++++++++++++++++++++
kernel/cgroup.c | 22 ----------------------
2 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index d6930de..6e7533b 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -521,6 +521,28 @@ static inline bool cgroup_on_dfl(const struct cgroup *cgrp)
return cgrp->root == &cgrp_dfl_root;
}

+/* convenient tests for these bits */
+static inline bool cgroup_is_dead(const struct cgroup *cgrp)
+{
+ return !(cgrp->self.flags & CSS_ONLINE);
+}
+
+static inline void cgroup_get(struct cgroup *cgrp)
+{
+ WARN_ON_ONCE(cgroup_is_dead(cgrp));
+ css_get(&cgrp->self);
+}
+
+static inline bool cgroup_tryget(struct cgroup *cgrp)
+{
+ return css_tryget(&cgrp->self);
+}
+
+static inline void cgroup_put(struct cgroup *cgrp)
+{
+ css_put(&cgrp->self);
+}
+
/* no synchronization, the result can only be used as a hint */
static inline bool cgroup_has_tasks(struct cgroup *cgrp)
{
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 5d8fc84..e12d36e 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -321,12 +321,6 @@ out_unlock:
return css;
}

-/* convenient tests for these bits */
-static inline bool cgroup_is_dead(const struct cgroup *cgrp)
-{
- return !(cgrp->self.flags & CSS_ONLINE);
-}
-
struct cgroup_subsys_state *of_css(struct kernfs_open_file *of)
{
struct cgroup *cgrp = of->kn->parent->priv;
@@ -1039,22 +1033,6 @@ static umode_t cgroup_file_mode(const struct cftype *cft)
return mode;
}

-static void cgroup_get(struct cgroup *cgrp)
-{
- WARN_ON_ONCE(cgroup_is_dead(cgrp));
- css_get(&cgrp->self);
-}
-
-static bool cgroup_tryget(struct cgroup *cgrp)
-{
- return css_tryget(&cgrp->self);
-}
-
-static void cgroup_put(struct cgroup *cgrp)
-{
- css_put(&cgrp->self);
-}
-
/**
* cgroup_calc_child_subsys_mask - calculate child_subsys_mask
* @cgrp: the target cgroup
--
2.2.0.rc0.207.ga3a616c


\
 
 \ /
  Last update: 2014-12-05 03:41    [W:0.112 / U:0.840 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site