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 <linux/netfs.h>
11#include "internal.h"
12
13atomic_t netfs_n_rh_readahead;
14atomic_t netfs_n_rh_readpage;
15atomic_t netfs_n_rh_rreq;
16atomic_t netfs_n_rh_sreq;
17atomic_t netfs_n_rh_download;
18atomic_t netfs_n_rh_download_done;
19atomic_t netfs_n_rh_download_failed;
20atomic_t netfs_n_rh_download_instead;
21atomic_t netfs_n_rh_read;
22atomic_t netfs_n_rh_read_done;
23atomic_t netfs_n_rh_read_failed;
24atomic_t netfs_n_rh_zero;
25atomic_t netfs_n_rh_short_read;
26atomic_t netfs_n_rh_write;
27atomic_t netfs_n_rh_write_begin;
28atomic_t netfs_n_rh_write_done;
29atomic_t netfs_n_rh_write_failed;
30atomic_t netfs_n_rh_write_zskip;
31
32void netfs_stats_show(struct seq_file *m)
33{
34	seq_printf(m, "RdHelp : RA=%u RP=%u WB=%u WBZ=%u rr=%u sr=%u\n",
35		   atomic_read(&netfs_n_rh_readahead),
36		   atomic_read(&netfs_n_rh_readpage),
37		   atomic_read(&netfs_n_rh_write_begin),
38		   atomic_read(&netfs_n_rh_write_zskip),
39		   atomic_read(&netfs_n_rh_rreq),
40		   atomic_read(&netfs_n_rh_sreq));
41	seq_printf(m, "RdHelp : ZR=%u sh=%u sk=%u\n",
42		   atomic_read(&netfs_n_rh_zero),
43		   atomic_read(&netfs_n_rh_short_read),
44		   atomic_read(&netfs_n_rh_write_zskip));
45	seq_printf(m, "RdHelp : DL=%u ds=%u df=%u di=%u\n",
46		   atomic_read(&netfs_n_rh_download),
47		   atomic_read(&netfs_n_rh_download_done),
48		   atomic_read(&netfs_n_rh_download_failed),
49		   atomic_read(&netfs_n_rh_download_instead));
50	seq_printf(m, "RdHelp : RD=%u rs=%u rf=%u\n",
51		   atomic_read(&netfs_n_rh_read),
52		   atomic_read(&netfs_n_rh_read_done),
53		   atomic_read(&netfs_n_rh_read_failed));
54	seq_printf(m, "RdHelp : WR=%u ws=%u wf=%u\n",
55		   atomic_read(&netfs_n_rh_write),
56		   atomic_read(&netfs_n_rh_write_done),
57		   atomic_read(&netfs_n_rh_write_failed));
58}
59EXPORT_SYMBOL(netfs_stats_show);