wrapper/percpu-defs.h

   1 /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
   2  *
   3  * wrapper/percpu-defs.h
   4  *
   5  * wrapper around linux/percpu-defs.h.
   6  *
   7  * Copyright (C) 2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   8  */
   9
  10 #ifndef _LTTNG_WRAPPER_PERCPU_DEFS_H
  11 #define _LTTNG_WRAPPER_PERCPU_DEFS_H
  12
  13 #include <linux/version.h>
  14
  15 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0)
  16
  17 #include <linux/percpu-defs.h>
  18
  19 #define lttng_this_cpu_ptr(ptr)         this_cpu_ptr(ptr)
  20
  21 #else /* #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0) */
  22
  23 #include <linux/percpu.h>
  24
  25 #define lttng_this_cpu_ptr(ptr)         (&__get_cpu_var(*(ptr)))
  26
  27 #endif /* #else #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0) */
  28
  29 #endif /* _LTTNG_WRAPPER_PERCPU_DEFS_H */