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more ifdef's to make it work with Red Hat Enterprise Linux 4's 2.6.9-based

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2006-02-17  Bastien Nocera  <hadess@hadess.net>

	* configure.ac:
	* module/sysprof-module.c: (timer_notify), (sysprof_open),
	(sysprof_release): more ifdef's to make it work with Red Hat
	Enterprise Linux 4's 2.6.9-based kernel
This commit is contained in:
Bastien Nocera
2006-02-17 15:44:55 +00:00
committed by Bastien Nocera
parent 58a1cf37ef
commit 0a592c152a
3 changed files with 44 additions and 6 deletions
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39
module/sysprof-module.c
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@ -40,9 +40,15 @@
#include "sysprof-module.h"
#include <linux/version.h>
#if (KERNEL_VERSION(2,6,11) > LINUX_VERSION_CODE) || (!CONFIG_PROFILING)
# error Sysprof needs a Linux 2.6.11 kernel or later, with profiling support compiled in.
#if (KERNEL_VERSION(2,6,9) > LINUX_VERSION_CODE) || (!CONFIG_PROFILING)
# error Sysprof needs a Linux 2.6.9 kernel or later, with profiling support compiled in.
#endif
#if (KERNEL_VERSION(2,6,11) > LINUX_VERSION_CODE)
#define OLD_PROFILE
#include <linux/notifier.h>
#endif
#include <linux/kallsyms.h>
MODULE_LICENSE("GPL");
@ -101,9 +107,16 @@ read_frame (void *frame_pointer, StackFrame *frame)
return 0;
}
#ifdef OLD_PROFILE
static int timer_notify(struct notifier_block * self, unsigned long val, void * data)
#else
static int
timer_notify (struct pt_regs *regs)
#endif
{
#ifdef OLD_PROFILE
struct pt_regs * regs = (struct pt_regs *)data;
#endif
void *frame_pointer;
static int n_samples;
SysprofStackTrace *trace = head;
@ -161,6 +174,14 @@ timer_notify (struct pt_regs *regs)
return 0;
}
#ifdef OLD_PROFILE
static struct notifier_block timer_notifier = {
.notifier_call = timer_notify,
NULL,
0
};
#endif
static int
sysprof_read(struct file *file, char *buffer, size_t count, loff_t *offset)
{
@ -208,8 +229,13 @@ sysprof_open(struct inode *inode, struct file *file)
{
int retval = 0;
if (atomic_inc_return(&client_count) == 1)
if (atomic_inc_return(&client_count) == 1) {
#ifndef OLD_PROFILE
retval = register_timer_hook (timer_notify);
#else
retval = register_profile_notifier (&timer_notifier);
#endif
}
file->private_data = head;
@ -219,8 +245,13 @@ sysprof_open(struct inode *inode, struct file *file)
static int
sysprof_release(struct inode *inode, struct file *file)
{
if (atomic_dec_return(&client_count) == 0)
if (atomic_dec_return(&client_count) == 0) {
#ifndef OLD_PROFILE
unregister_timer_hook (timer_notify);
#else
unregister_profile_notifier (&timer_notifier);
#endif
}
return 0;
}