2 * Dynamic Binary Instrumentation Module based on KProbes
3 * energy/rational_debugfs.c
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 * Copyright (C) Samsung Electronics, 2013
21 * 2013 Vyacheslav Cherkashin <v.cherkashin@samsung.com>
26 #include <linux/dcache.h>
27 #include <linux/debugfs.h>
28 #include <linux/module.h>
29 #include "debugfs_energy.h"
30 #include "rational_debugfs.h"
33 static int denom_set(void *data, u64 val)
42 static int denom_get(void *data, u64 *val)
48 SWAP_DEFINE_SIMPLE_ATTRIBUTE(fops_denom, denom_get, denom_set, "%llu\n");
51 * @brief Create file in debugfs for rational struct
53 * @param parent Dentry parent
54 * @param r Pointer to the rational struct
55 * @param num_name File name of numerator
56 * @param denom_name File name of denominator
59 int create_rational_files(struct dentry *parent, struct rational *r,
60 const char *num_name, const char *denom_name)
62 struct dentry *d_num, *d_denom;
64 d_num = debugfs_create_u64(num_name, 0600, parent, &r->num);
68 d_denom = debugfs_create_file(denom_name, 0600, parent, &r->denom,
70 if (d_denom == NULL) {
71 debugfs_remove(d_num);