tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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_readahead;
14atomic_t netfs_n_rh_read_folio;
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;
31atomic_t netfs_n_wh_buffered_write;
32atomic_t netfs_n_wh_writethrough;
33atomic_t netfs_n_wh_dio_write;
34atomic_t netfs_n_wh_writepages;
35atomic_t netfs_n_wh_wstream_conflict;
36atomic_t netfs_n_wh_upload;
37atomic_t netfs_n_wh_upload_done;
38atomic_t netfs_n_wh_upload_failed;
39atomic_t netfs_n_wh_write;
40atomic_t netfs_n_wh_write_done;
41atomic_t netfs_n_wh_write_failed;
42
43int netfs_stats_show(struct seq_file *m, void *v)
44{
45 seq_printf(m, "Netfs : DR=%u RA=%u RF=%u WB=%u WBZ=%u\n",
46 atomic_read(&netfs_n_rh_dio_read),
47 atomic_read(&netfs_n_rh_readahead),
48 atomic_read(&netfs_n_rh_read_folio),
49 atomic_read(&netfs_n_rh_write_begin),
50 atomic_read(&netfs_n_rh_write_zskip));
51 seq_printf(m, "Netfs : BW=%u WT=%u DW=%u WP=%u\n",
52 atomic_read(&netfs_n_wh_buffered_write),
53 atomic_read(&netfs_n_wh_writethrough),
54 atomic_read(&netfs_n_wh_dio_write),
55 atomic_read(&netfs_n_wh_writepages));
56 seq_printf(m, "Netfs : ZR=%u sh=%u sk=%u\n",
57 atomic_read(&netfs_n_rh_zero),
58 atomic_read(&netfs_n_rh_short_read),
59 atomic_read(&netfs_n_rh_write_zskip));
60 seq_printf(m, "Netfs : DL=%u ds=%u df=%u di=%u\n",
61 atomic_read(&netfs_n_rh_download),
62 atomic_read(&netfs_n_rh_download_done),
63 atomic_read(&netfs_n_rh_download_failed),
64 atomic_read(&netfs_n_rh_download_instead));
65 seq_printf(m, "Netfs : RD=%u rs=%u rf=%u\n",
66 atomic_read(&netfs_n_rh_read),
67 atomic_read(&netfs_n_rh_read_done),
68 atomic_read(&netfs_n_rh_read_failed));
69 seq_printf(m, "Netfs : UL=%u us=%u uf=%u\n",
70 atomic_read(&netfs_n_wh_upload),
71 atomic_read(&netfs_n_wh_upload_done),
72 atomic_read(&netfs_n_wh_upload_failed));
73 seq_printf(m, "Netfs : WR=%u ws=%u wf=%u\n",
74 atomic_read(&netfs_n_wh_write),
75 atomic_read(&netfs_n_wh_write_done),
76 atomic_read(&netfs_n_wh_write_failed));
77 seq_printf(m, "Netfs : rr=%u sr=%u wsc=%u\n",
78 atomic_read(&netfs_n_rh_rreq),
79 atomic_read(&netfs_n_rh_sreq),
80 atomic_read(&netfs_n_wh_wstream_conflict));
81 return fscache_stats_show(m);
82}
83EXPORT_SYMBOL(netfs_stats_show);