+++ /dev/null
-#ifndef _LIBRINGBUFFER_SMP_H
-#define _LIBRINGBUFFER_SMP_H
-
-/*
- * libringbuffer/smp.h
- *
- * Copyright 2011 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * Dual LGPL v2.1/GPL v2 license.
- */
-
-#include <lttng/core.h>
-
-/*
- * 4kB of per-cpu data available. Enough to hold the control structures,
- * but not ring buffers.
- */
-#define PER_CPU_MEM_SIZE 4096
-
-extern int __num_possible_cpus;
-extern void _get_num_possible_cpus(void);
-
-static inline
-int num_possible_cpus(void)
-{
- if (!__num_possible_cpus)
- _get_num_possible_cpus();
- return __num_possible_cpus;
-}
-
-/*
- * get_cpu() returns the current CPU number. It may change due to
- * migration, so it is only statistically accurate.
- */
-#ifndef UST_VALGRIND
-static inline
-int get_cpu(void)
-{
- int cpu;
-
- cpu = sched_getcpu();
- if (caa_likely(cpu >= 0))
- return cpu;
- /*
- * If getcpu(2) is not implemented in the Kernel use CPU 0 as fallback.
- */
- return 0;
-}
-
-#else /* #else #ifndef UST_VALGRIND */
-static inline
-int get_cpu(void)
-{
- /*
- * Valgrind does not support the sched_getcpu() vsyscall.
- * It causes it to detect a segfault in the program and stop it.
- * So if we want to check libust with valgrind, we have to refrain
- * from using this call. TODO: it would probably be better to return
- * other values too, to better test it.
- */
- return 0;
-}
-#endif /* #else #ifndef UST_VALGRIND */
-
-static inline
-void put_cpu(void)
-{
-}
-
-#define for_each_possible_cpu(cpu) \
- for ((cpu) = 0; (cpu) < num_possible_cpus(); (cpu)++)
-
-#endif /* _LIBRINGBUFFER_SMP_H */