https://github.com/torvalds/linux
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Tip revision: 6e4664525b1db28f8c4e1130957f70a94c19213e authored by Linus Torvalds on 02 September 2013, 20:46:10 UTC
Linux 3.11
Tip revision: 6e46645
debugfs.c
#include <linux/init.h>
#include <linux/debugfs.h>
#include <linux/slab.h>
#include <linux/module.h>

#include "debugfs.h"

static struct dentry *d_xen_debug;

struct dentry * __init xen_init_debugfs(void)
{
	if (!d_xen_debug) {
		d_xen_debug = debugfs_create_dir("xen", NULL);

		if (!d_xen_debug)
			pr_warning("Could not create 'xen' debugfs directory\n");
	}

	return d_xen_debug;
}

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