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Date: Thu, 17 Jul 2014 12:52:10 -0700 From: Aditya Kali <adityakali@...gle.com> To: tj@...nel.org, lizefan@...wei.com, cgroups@...r.kernel.org, linux-kernel@...r.kernel.org, linux-api@...r.kernel.org, mingo@...hat.com Cc: containers@...ts.linux-foundation.org, Aditya Kali <adityakali@...gle.com> Subject: [PATCH 4/5] cgroup: export cgroup_get() and cgroup_put() move cgroup_get() and cgroup_put() into cgroup.h so that they can be called from other places. Signed-off-by: Aditya Kali <adityakali@...gle.com> --- include/linux/cgroup.h | 17 +++++++++++++++++ kernel/cgroup.c | 18 ------------------ 2 files changed, 17 insertions(+), 18 deletions(-) diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 707c302..4ea477f 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -530,6 +530,23 @@ 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 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 1671345..8552513 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -185,7 +185,6 @@ static int need_forkexit_callback __read_mostly; static struct cftype cgroup_dfl_base_files[]; static struct cftype cgroup_legacy_base_files[]; -static void cgroup_put(struct cgroup *cgrp); static int rebind_subsystems(struct cgroup_root *dst_root, unsigned int ss_mask); static int cgroup_destroy_locked(struct cgroup *cgrp); @@ -286,12 +285,6 @@ static struct cgroup_subsys_state *cgroup_e_css(struct cgroup *cgrp, return cgroup_css(cgrp, ss); } -/* 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; @@ -1029,17 +1022,6 @@ 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 void cgroup_put(struct cgroup *cgrp) -{ - css_put(&cgrp->self); -} - /** * cgroup_refresh_child_subsys_mask - update child_subsys_mask * @cgrp: the target cgroup -- 2.0.0.526.g5318336 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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