Messages in this thread Patch in this message | | | Date | Fri, 17 Sep 2010 11:28:45 +0200 | From | Peter Zijlstra <> | Subject | [PATCH 1/6] percpu: {get,put}_cpu_ptr |
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Similar to {get,put}_cpu_var() except for dynamically allocated per-cpu memory.
Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> --- include/linux/percpu.h | 9 +++++++++ 1 file changed, 9 insertions(+)
Index: linux-2.6/include/linux/percpu.h =================================================================== --- linux-2.6.orig/include/linux/percpu.h +++ linux-2.6/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 */
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