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| author | Tejun Heo <tj@kernel.org> | 2014-05-09 23:11:53 +0400 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2014-05-09 23:42:35 +0400 |
| commit | 4fb6e25049cb6fa0accc7f1b7c192b952fad7ac8 (patch) | |
| tree | 6be13f79be6f0bb6dc51ca10431c9737af8aee92 /fs/jbd2/commit.c | |
| parent | 2070d50e1cbe3d7f157cbf8e63279c893f375d7f (diff) | |
| download | linux-4fb6e25049cb6fa0accc7f1b7c192b952fad7ac8.tar.xz | |
percpu-refcount: implement percpu_ref_tryget()
Implement percpu_ref_tryget() which fails if the refcnt already
reached zero. Note that this is different from the recently renamed
percpu_ref_tryget_live() which fails if the refcnt has been killed and
is draining the remaining references. percpu_ref_tryget() succeeds on
a killed refcnt as long as its current refcnt is above zero.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Kent Overstreet <kmo@daterainc.com>
Diffstat (limited to 'fs/jbd2/commit.c')
0 files changed, 0 insertions, 0 deletions