tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Copyright (C) 2025, LG Electronics.
4 * Author(s): Hyunchul Lee <hyc.lee@gmail.com>
5 * Copyright (C) 2025, Samsung Electronics.
6 * Author(s): Vedansh Bhardwaj <v.bhardwaj@samsung.com>
7 */
8
9#ifndef __KSMBD_STATS_H__
10#define __KSMBD_STATS_H__
11
12#define KSMBD_COUNTER_MAX_REQS 19
13
14enum {
15 KSMBD_COUNTER_SESSIONS = 0,
16 KSMBD_COUNTER_TREE_CONNS,
17 KSMBD_COUNTER_REQUESTS,
18 KSMBD_COUNTER_READ_BYTES,
19 KSMBD_COUNTER_WRITE_BYTES,
20 KSMBD_COUNTER_FIRST_REQ,
21 KSMBD_COUNTER_LAST_REQ = KSMBD_COUNTER_FIRST_REQ +
22 KSMBD_COUNTER_MAX_REQS - 1,
23 KSMBD_COUNTER_MAX,
24};
25
26#ifdef CONFIG_PROC_FS
27extern struct ksmbd_counters ksmbd_counters;
28
29struct ksmbd_counters {
30 struct percpu_counter counters[KSMBD_COUNTER_MAX];
31};
32
33static inline void ksmbd_counter_inc(int type)
34{
35 percpu_counter_inc(&ksmbd_counters.counters[type]);
36}
37
38static inline void ksmbd_counter_dec(int type)
39{
40 percpu_counter_dec(&ksmbd_counters.counters[type]);
41}
42
43static inline void ksmbd_counter_add(int type, s64 value)
44{
45 percpu_counter_add(&ksmbd_counters.counters[type], value);
46}
47
48static inline void ksmbd_counter_sub(int type, s64 value)
49{
50 percpu_counter_sub(&ksmbd_counters.counters[type], value);
51}
52
53static inline void ksmbd_counter_inc_reqs(unsigned int cmd)
54{
55 if (cmd < KSMBD_COUNTER_MAX_REQS)
56 percpu_counter_inc(&ksmbd_counters.counters[KSMBD_COUNTER_FIRST_REQ + cmd]);
57}
58
59static inline s64 ksmbd_counter_sum(int type)
60{
61 return percpu_counter_sum_positive(&ksmbd_counters.counters[type]);
62}
63#else
64
65static inline void ksmbd_counter_inc(int type) {}
66static inline void ksmbd_counter_dec(int type) {}
67static inline void ksmbd_counter_add(int type, s64 value) {}
68static inline void ksmbd_counter_sub(int type, s64 value) {}
69static inline void ksmbd_counter_inc_reqs(unsigned int cmd) {}
70static inline s64 ksmbd_counter_sum(int type) { return 0; }
71#endif
72
73#endif