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
12 atomic_t netfs_n_rh_dio_read;
13 atomic_t netfs_n_rh_readahead;
14 atomic_t netfs_n_rh_read_folio;
15 atomic_t netfs_n_rh_rreq;
16 atomic_t netfs_n_rh_sreq;
17 atomic_t netfs_n_rh_download;
18 atomic_t netfs_n_rh_download_done;
19 atomic_t netfs_n_rh_download_failed;
20 atomic_t netfs_n_rh_download_instead;
21 atomic_t netfs_n_rh_read;
22 atomic_t netfs_n_rh_read_done;
23 atomic_t netfs_n_rh_read_failed;
24 atomic_t netfs_n_rh_zero;
25 atomic_t netfs_n_rh_short_read;
26 atomic_t netfs_n_rh_write;
27 atomic_t netfs_n_rh_write_begin;
28 atomic_t netfs_n_rh_write_done;
29 atomic_t netfs_n_rh_write_failed;
30 atomic_t netfs_n_rh_write_zskip;
31 atomic_t netfs_n_wh_buffered_write;
32 atomic_t netfs_n_wh_writethrough;
33 atomic_t netfs_n_wh_dio_write;
34 atomic_t netfs_n_wh_writepages;
35 atomic_t netfs_n_wh_wstream_conflict;
36 atomic_t netfs_n_wh_upload;
37 atomic_t netfs_n_wh_upload_done;
38 atomic_t netfs_n_wh_upload_failed;
39 atomic_t netfs_n_wh_write;
40 atomic_t netfs_n_wh_write_done;
41 atomic_t netfs_n_wh_write_failed;
42
43 int 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 }
83 EXPORT_SYMBOL(netfs_stats_show);
84
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