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authorZefan Li <lizefan@huawei.com>2014-09-19 12:29:31 +0400
committerTejun Heo <tj@kernel.org>2014-09-19 17:16:23 +0400
commitf29374b146dd02f5f99742aedaddd6ef3512fc9c (patch)
tree107e75d26d7a8a6a88747a9f5ef78e0a8405ff3d /include/linux/cgroup.h
parent52de4779f201758ddcf37360f09a16895756e708 (diff)
downloadlinux-f29374b146dd02f5f99742aedaddd6ef3512fc9c.tar.xz
cgroup: remove redundant check in cgroup_ino()
After we implemented default unified hierarchy, cgrp->kn can never be NULL. Signed-off-by: Zefan Li <lizefan@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include/linux/cgroup.h')
-rw-r--r--include/linux/cgroup.h7
1 files changed, 2 insertions, 5 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 77a1d37b742b..818a81fe7ccc 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -532,13 +532,10 @@ static inline bool cgroup_has_tasks(struct cgroup *cgrp)
return !list_empty(&cgrp->cset_links);
}
-/* returns ino associated with a cgroup, 0 indicates unmounted root */
+/* returns ino associated with a cgroup */
static inline ino_t cgroup_ino(struct cgroup *cgrp)
{
- if (cgrp->kn)
- return cgrp->kn->ino;
- else
- return 0;
+ return cgrp->kn->ino;
}
/* cft/css accessors for cftype->write() operation */