1// SPDX-License-Identifier: GPL-2.0-or-later
2/* Netfs support statistics
3 *
4 * Copyright (C) 2021 Red Hat, Inc. All Rights Reserved.
5 * Written by David Howells (dhowells@redhat.com)
6 */
7
8#include <linux/export.h>
9#include <linux/seq_file.h>
10#include "internal.h"
11
12atomic_t netfs_n_rh_dio_read;
13atomic_t netfs_n_rh_dio_write;
14atomic_t netfs_n_rh_readahead;
15atomic_t netfs_n_rh_readpage;
16atomic_t netfs_n_rh_rreq;
17atomic_t netfs_n_rh_sreq;
18atomic_t netfs_n_rh_download;
19atomic_t netfs_n_rh_download_done;
20atomic_t netfs_n_rh_download_failed;
21atomic_t netfs_n_rh_download_instead;
22atomic_t netfs_n_rh_read;
23atomic_t netfs_n_rh_read_done;
24atomic_t netfs_n_rh_read_failed;
25atomic_t netfs_n_rh_zero;
26atomic_t netfs_n_rh_short_read;
27atomic_t netfs_n_rh_write;
28atomic_t netfs_n_rh_write_begin;
29atomic_t netfs_n_rh_write_done;
30atomic_t netfs_n_rh_write_failed;
31atomic_t netfs_n_rh_write_zskip;
32atomic_t netfs_n_wh_wstream_conflict;
33atomic_t netfs_n_wh_upload;
34atomic_t netfs_n_wh_upload_done;
35atomic_t netfs_n_wh_upload_failed;
36atomic_t netfs_n_wh_write;
37atomic_t netfs_n_wh_write_done;
38atomic_t netfs_n_wh_write_failed;
39
40int netfs_stats_show(struct seq_file *m, void *v)
41{
42	seq_printf(m, "Netfs  : DR=%u DW=%u RA=%u RP=%u WB=%u WBZ=%u\n",
43		   atomic_read(&netfs_n_rh_dio_read),
44		   atomic_read(&netfs_n_rh_dio_write),
45		   atomic_read(&netfs_n_rh_readahead),
46		   atomic_read(&netfs_n_rh_readpage),
47		   atomic_read(&netfs_n_rh_write_begin),
48		   atomic_read(&netfs_n_rh_write_zskip));
49	seq_printf(m, "Netfs  : ZR=%u sh=%u sk=%u\n",
50		   atomic_read(&netfs_n_rh_zero),
51		   atomic_read(&netfs_n_rh_short_read),
52		   atomic_read(&netfs_n_rh_write_zskip));
53	seq_printf(m, "Netfs  : DL=%u ds=%u df=%u di=%u\n",
54		   atomic_read(&netfs_n_rh_download),
55		   atomic_read(&netfs_n_rh_download_done),
56		   atomic_read(&netfs_n_rh_download_failed),
57		   atomic_read(&netfs_n_rh_download_instead));
58	seq_printf(m, "Netfs  : RD=%u rs=%u rf=%u\n",
59		   atomic_read(&netfs_n_rh_read),
60		   atomic_read(&netfs_n_rh_read_done),
61		   atomic_read(&netfs_n_rh_read_failed));
62	seq_printf(m, "Netfs  : UL=%u us=%u uf=%u\n",
63		   atomic_read(&netfs_n_wh_upload),
64		   atomic_read(&netfs_n_wh_upload_done),
65		   atomic_read(&netfs_n_wh_upload_failed));
66	seq_printf(m, "Netfs  : WR=%u ws=%u wf=%u\n",
67		   atomic_read(&netfs_n_wh_write),
68		   atomic_read(&netfs_n_wh_write_done),
69		   atomic_read(&netfs_n_wh_write_failed));
70	seq_printf(m, "Netfs  : rr=%u sr=%u wsc=%u\n",
71		   atomic_read(&netfs_n_rh_rreq),
72		   atomic_read(&netfs_n_rh_sreq),
73		   atomic_read(&netfs_n_wh_wstream_conflict));
74	return fscache_stats_show(m);
75}
76EXPORT_SYMBOL(netfs_stats_show);
77