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percpu-refcount: rename percpu_ref_tryget() to percpu_ref_tryget_live()

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percpu_ref_tryget() is different from the usual tryget semantics in
that it fails if the refcnt is in its dying stage even if the refcnt
hasn't reached zero yet.  We're about to introduce the more
conventional tryget and the current one has only one user.  Let's
rename it to percpu_ref_tryget_live() so that it explicitly signifies
the peculiarities of its semantics.

This is pure rename.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Kent Overstreet <kmo@daterainc.com>
This commit is contained in:
Tejun Heo
2014-05-09 15:11:53 -04:00
parent fdb9c293de
commit 2070d50e1c
2 changed files with 3 additions and 3 deletions
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2
include/linux/cgroup.h
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@@ -101,7 +101,7 @@ static inline bool css_tryget(struct cgroup_subsys_state *css)
{
if (css->flags & CSS_ROOT)
return true;
return percpu_ref_tryget(&css->refcnt);
return percpu_ref_tryget_live(&css->refcnt);
}
/**