From: Michael Jeanson <mjeanson@efficios.com>
Date: Thu, 8 Nov 2018 20:27:19 +0000 (-0500)
Subject: Drop support for kernels < 3.0 from perf.h wrapper
X-Git-Tag: v2.12.0-pre~98
X-Git-Url: http://git.liburcu.org/?p=lttng-modules.git;a=commitdiff_plain;h=f3cd1cf88a6961f59d9452bcb82eb91054012a2f

Drop support for kernels < 3.0 from perf.h wrapper

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/wrapper/perf.h b/wrapper/perf.h
index 48e256c8..4a7f6d85 100644
--- a/wrapper/perf.h
+++ b/wrapper/perf.h
@@ -22,8 +22,6 @@ wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
 	return perf_event_create_kernel_counter(attr, cpu, task, callback, NULL);
 }
 #else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) */
-
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
 static inline struct perf_event *
 wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
 				int cpu,
@@ -32,29 +30,6 @@ wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
 {
 	return perf_event_create_kernel_counter(attr, cpu, task, callback);
 }
-#else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) */
-static inline struct perf_event *
-wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
-				int cpu,
-				struct task_struct *task,
-				perf_overflow_handler_t callback)
-{
-	pid_t pid;
-
-	if (!task)
-		pid = -1;
-	else
-		pid = task->pid;
-
-	return perf_event_create_kernel_counter(attr, cpu, pid, callback);
-}
-
-#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) */
-
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36))
-#define local64_read(l)		atomic64_read(l)
-#endif
-
 #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) */
 
 #endif /* CONFIG_PERF_EVENTS */