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23 October 2021, 00:29:24 UTC
Revision 6371e82307237dede71f884ad8e8e11faa75e8be authored by Linus Torvalds on 14 December 2010, 21:32:19 UTC, committed by Linus Torvalds on 14 December 2010, 21:32:19 UTC 
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
 
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  amd64_edac: Fix interleaving check
  EDAC: Correct MiB_TO_PAGES() macro
  EDAC: Fix workqueue-related crashes
2 parent s c3606c6 + e726f3c
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Tip revision: 6371e82307237dede71f884ad8e8e11faa75e8be authored by Linus Torvalds on 14 December 2010, 21:32:19 UTC
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Tip revision: 6371e82
tracepoint-probe-sample2.c 
/*
 * tracepoint-probe-sample2.c
 *
 * 2nd sample tracepoint probes.
 */

#include <linux/module.h>
#include <linux/fs.h>
#include "tp-samples-trace.h"

/*
 * Here the caller only guarantees locking for struct file and struct inode.
 * Locking must therefore be done in the probe to use the dentry.
 */
static void probe_subsys_event(void *ignore,
			       struct inode *inode, struct file *file)
{
	printk(KERN_INFO "Event is encountered with inode number %lu\n",
		inode->i_ino);
}

static int __init tp_sample_trace_init(void)
{
	int ret;

	ret = register_trace_subsys_event(probe_subsys_event, NULL);
	WARN_ON(ret);

	return 0;
}

module_init(tp_sample_trace_init);

static void __exit tp_sample_trace_exit(void)
{
	unregister_trace_subsys_event(probe_subsys_event, NULL);
	tracepoint_synchronize_unregister();
}

module_exit(tp_sample_trace_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Mathieu Desnoyers");
MODULE_DESCRIPTION("Tracepoint Probes Samples");
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