auto import from //depot/cupcake/@135843

libc/kernel/common/linux/percpu.h

@@ -0,0 +1,30 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef __LINUX_PERCPU_H
+#define __LINUX_PERCPU_H
+#include <linux/spinlock.h>  
+#include <linux/slab.h>  
+#include <linux/smp.h>
+#include <linux/string.h>  
+#include <asm/percpu.h>
+
+#ifndef PERCPU_ENOUGH_ROOM
+#define PERCPU_ENOUGH_ROOM 32768
+#endif
+
+#define get_cpu_var(var) (*({ preempt_disable(); &__get_cpu_var(var); }))
+#define put_cpu_var(var) preempt_enable()
+
+#define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); (ptr); })
+
+#define alloc_percpu(type) ((type *)(__alloc_percpu(sizeof(type))))
+#endif