diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-09-16 19:21:28 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-09-21 13:55:43 +0200 |
| commit | 8b8e2ec1eeca7f6941bc81cefc9663018d6ceb57 (patch) | |
| tree | fbbfa0732aceb7204f1f962e004ea192e7b7d833 /include | |
| parent | 7ed569206ebe7467b9c912b857ec46cf1c361111 (diff) | |
percpu: Add {get,put}_cpu_ptr
These are similar to {get,put}_cpu_var() except for dynamically
allocated per-cpu memory.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Tejun Heo <tj@kernel.org>
LKML-Reference: <20100917093009.252867712@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/percpu.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 49466b13c5c6..0eb50832aa00 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -39,6 +39,15 @@ preempt_enable(); \ } while (0) +#define get_cpu_ptr(var) ({ \ + preempt_disable(); \ + this_cpu_ptr(var); }) + +#define put_cpu_ptr(var) do { \ + (void)(var); \ + preempt_enable(); \ +} while (0) + #ifdef CONFIG_SMP /* minimum unit size, also is the maximum supported allocation size */ |