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fix: kvm instrumentation for CentOS >= 4.18.0-147
[lttng-modules.git]
/
wrapper
/
splice.c
diff --git
a/wrapper/splice.c
b/wrapper/splice.c
index 65f0d711d31c06212869abb7974426d02a5c1e6f..b0f8738b03b3cf5c06dd918af49cada27e6919fb 100644
(file)
--- a/
wrapper/splice.c
+++ b/
wrapper/splice.c
@@
-1,19
+1,23
@@
-/*
- * Copyright (C) 2011 Mathieu Desnoyers (mathieu.desnoyers@efficios.com)
+/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
+ *
+ * wrapper/splice.c
*
* wrapper around splice_to_pipe. Using KALLSYMS to get its address when
* available, else we need to have a kernel that exports this function to GPL
*
* wrapper around splice_to_pipe. Using KALLSYMS to get its address when
* available, else we need to have a kernel that exports this function to GPL
- * modules.
+ * modules.
The export was introduced in kernel 4.2.
*
*
- *
Dual LGPL v2.1/GPL v2 license.
+ *
Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*/
*/
-#ifdef CONFIG_KALLSYMS
+#include <lttng-kernel-version.h>
+
+#if (defined(CONFIG_KALLSYMS) \
+ && (LINUX_VERSION_CODE < KERNEL_VERSION(4,2,0)))
#include <linux/kallsyms.h>
#include <linux/fs.h>
#include <linux/splice.h>
#include <linux/kallsyms.h>
#include <linux/fs.h>
#include <linux/splice.h>
-#include
"kallsyms.h"
+#include
<wrapper/kallsyms.h>
static
ssize_t (*splice_to_pipe_sym)(struct pipe_inode_info *pipe,
static
ssize_t (*splice_to_pipe_sym)(struct pipe_inode_info *pipe,
@@
-23,11
+27,11
@@
ssize_t wrapper_splice_to_pipe(struct pipe_inode_info *pipe,
struct splice_pipe_desc *spd)
{
if (!splice_to_pipe_sym)
struct splice_pipe_desc *spd)
{
if (!splice_to_pipe_sym)
- splice_to_pipe_sym = (void *) kallsyms_lookup_funcptr("splice_to_pipe");
+ splice_to_pipe_sym = (void *) kallsyms_lookup_funcptr("splice_to_pipe");
if (splice_to_pipe_sym) {
return splice_to_pipe_sym(pipe, spd);
} else {
if (splice_to_pipe_sym) {
return splice_to_pipe_sym(pipe, spd);
} else {
- printk(KERN_WARNING "LTTng: splice_to_pipe symbol lookup failed.\n");
+ printk
_once
(KERN_WARNING "LTTng: splice_to_pipe symbol lookup failed.\n");
return -ENOSYS;
}
}
return -ENOSYS;
}
}
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