perf_counter: Fix userspace build

recent userspace (F11) seems to already include the
linux/unistd.h bits which means we cannot include the version
in the kernel sources due to the header guards being the same.

Ensure we include the kernel version first.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: John Kacur <jkacur@redhat.com>
LKML-Reference: <20090523163012.739756497@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 19 insertions, 12 deletions

diff --git a/Documentation/perf_counter/perf.h b/Documentation/perf_counter/perf.h
index 81a737444c8f..a517683fc661 100644
--- a/Documentation/perf_counter/perf.h
+++ b/Documentation/perf_counter/perf.h
@@ -1,6 +1,25 @@
 #ifndef _PERF_PERF_H
 #define _PERF_PERF_H
 
+#if defined(__x86_64__) || defined(__i386__)
+#include "../../arch/x86/include/asm/unistd.h"
+#define rmb()           asm volatile("lfence" ::: "memory")
+#define cpu_relax()     asm volatile("rep; nop" ::: "memory");
+#endif
+
+#ifdef __powerpc__
+#include "../../arch/powerpc/include/asm/unistd.h"
+#define rmb()           asm volatile ("sync" ::: "memory")
+#define cpu_relax()     asm volatile ("" ::: "memory");
+#endif
+
+#include <time.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+
+#include "../../include/linux/perf_counter.h"
+
 /*
  * prctl(PR_TASK_PERF_COUNTERS_DISABLE) will (cheaply) disable all
  * counters in the current task.
@@ -26,18 +45,6 @@ static inline unsigned long long rdclock(void)
 #define __user
 #define asmlinkage
 
-#if defined(__x86_64__) || defined(__i386__)
-#include "../../arch/x86/include/asm/unistd.h"
-#define rmb()           asm volatile("lfence" ::: "memory")
-#define cpu_relax()     asm volatile("rep; nop" ::: "memory");
-#endif
-
-#ifdef __powerpc__
-#include "../../arch/powerpc/include/asm/unistd.h"
-#define rmb()           asm volatile ("sync" ::: "memory")
-#define cpu_relax()     asm volatile ("" ::: "memory");
-#endif
-
 #define unlikely(x)     __builtin_expect(!!(x), 0)
 #define min(x, y) ({                            \
         typeof(x) _min1 = (x);                  \