blob: 4e4423153071c788bb278d3856e3ff346cb915f8 [file] [log] [blame]
Dave Chinner0b61f8a2018-06-05 19:42:14 -07001// SPDX-License-Identifier: GPL-2.0
Linus Torvalds1da177e2005-04-16 15:20:36 -07002/*
Nathan Scott7b718762005-11-02 14:58:39 +11003 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
4 * All Rights Reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07006#include "xfs.h"
7#include <linux/proc_fs.h>
8
Bill O'Donnell80529c42015-10-12 05:19:45 +11009struct xstats xfsstats;
Linus Torvalds1da177e2005-04-16 15:20:36 -070010
Bill O'Donnell80529c42015-10-12 05:19:45 +110011static int counter_val(struct xfsstats __percpu *stats, int idx)
Christoph Hellwig48776fd2012-03-13 08:52:33 +000012{
13 int val = 0, cpu;
14
15 for_each_possible_cpu(cpu)
Bill O'Donnell80529c42015-10-12 05:19:45 +110016 val += *(((__u32 *)per_cpu_ptr(stats, cpu) + idx));
Christoph Hellwig48776fd2012-03-13 08:52:33 +000017 return val;
18}
19
Bill O'Donnell80529c42015-10-12 05:19:45 +110020int xfs_stats_format(struct xfsstats __percpu *stats, char *buf)
Bill O'Donnellbb230c12015-10-12 05:15:45 +110021{
22 int i, j;
23 int len = 0;
Darrick J. Wongc8ce5402017-06-16 11:00:05 -070024 uint64_t xs_xstrat_bytes = 0;
25 uint64_t xs_write_bytes = 0;
26 uint64_t xs_read_bytes = 0;
Bill O'Donnellbb230c12015-10-12 05:15:45 +110027
28 static const struct xstats_entry {
29 char *desc;
30 int endpoint;
31 } xstats[] = {
32 { "extent_alloc", XFSSTAT_END_EXTENT_ALLOC },
33 { "abt", XFSSTAT_END_ALLOC_BTREE },
34 { "blk_map", XFSSTAT_END_BLOCK_MAPPING },
35 { "bmbt", XFSSTAT_END_BLOCK_MAP_BTREE },
36 { "dir", XFSSTAT_END_DIRECTORY_OPS },
37 { "trans", XFSSTAT_END_TRANSACTIONS },
38 { "ig", XFSSTAT_END_INODE_OPS },
39 { "log", XFSSTAT_END_LOG_OPS },
40 { "push_ail", XFSSTAT_END_TAIL_PUSHING },
41 { "xstrat", XFSSTAT_END_WRITE_CONVERT },
42 { "rw", XFSSTAT_END_READ_WRITE_OPS },
43 { "attr", XFSSTAT_END_ATTRIBUTE_OPS },
44 { "icluster", XFSSTAT_END_INODE_CLUSTER },
45 { "vnodes", XFSSTAT_END_VNODE_OPS },
46 { "buf", XFSSTAT_END_BUF },
47 { "abtb2", XFSSTAT_END_ABTB_V2 },
48 { "abtc2", XFSSTAT_END_ABTC_V2 },
49 { "bmbt2", XFSSTAT_END_BMBT_V2 },
50 { "ibt2", XFSSTAT_END_IBT_V2 },
51 { "fibt2", XFSSTAT_END_FIBT_V2 },
Darrick J. Wong00f4e4f2016-08-03 11:31:11 +100052 { "rmapbt", XFSSTAT_END_RMAP_V2 },
Darrick J. Wong46eeb522016-10-03 09:11:16 -070053 { "refcntbt", XFSSTAT_END_REFCOUNT },
Bill O'Donnellbb230c12015-10-12 05:15:45 +110054 /* we print both series of quota information together */
55 { "qm", XFSSTAT_END_QM },
56 };
57
58 /* Loop over all stats groups */
59
60 for (i = j = 0; i < ARRAY_SIZE(xstats); i++) {
61 len += snprintf(buf + len, PATH_MAX - len, "%s",
62 xstats[i].desc);
63 /* inner loop does each group */
64 for (; j < xstats[i].endpoint; j++)
65 len += snprintf(buf + len, PATH_MAX - len, " %u",
Bill O'Donnell80529c42015-10-12 05:19:45 +110066 counter_val(stats, j));
Bill O'Donnellbb230c12015-10-12 05:15:45 +110067 len += snprintf(buf + len, PATH_MAX - len, "\n");
68 }
69 /* extra precision counters */
70 for_each_possible_cpu(i) {
Dave Chinner11ef38a2016-12-05 14:38:58 +110071 xs_xstrat_bytes += per_cpu_ptr(stats, i)->s.xs_xstrat_bytes;
72 xs_write_bytes += per_cpu_ptr(stats, i)->s.xs_write_bytes;
73 xs_read_bytes += per_cpu_ptr(stats, i)->s.xs_read_bytes;
Bill O'Donnellbb230c12015-10-12 05:15:45 +110074 }
75
76 len += snprintf(buf + len, PATH_MAX-len, "xpc %Lu %Lu %Lu\n",
77 xs_xstrat_bytes, xs_write_bytes, xs_read_bytes);
78 len += snprintf(buf + len, PATH_MAX-len, "debug %u\n",
79#if defined(DEBUG)
80 1);
81#else
82 0);
83#endif
84
85 return len;
86}
87
Bill O'Donnell80529c42015-10-12 05:19:45 +110088void xfs_stats_clearall(struct xfsstats __percpu *stats)
Bill O'Donnellbb230c12015-10-12 05:15:45 +110089{
90 int c;
Darrick J. Wongc8ce5402017-06-16 11:00:05 -070091 uint32_t vn_active;
Bill O'Donnellbb230c12015-10-12 05:15:45 +110092
93 xfs_notice(NULL, "Clearing xfsstats");
94 for_each_possible_cpu(c) {
95 preempt_disable();
96 /* save vn_active, it's a universal truth! */
Dave Chinner11ef38a2016-12-05 14:38:58 +110097 vn_active = per_cpu_ptr(stats, c)->s.vn_active;
Bill O'Donnell80529c42015-10-12 05:19:45 +110098 memset(per_cpu_ptr(stats, c), 0, sizeof(*stats));
Dave Chinner11ef38a2016-12-05 14:38:58 +110099 per_cpu_ptr(stats, c)->s.vn_active = vn_active;
Bill O'Donnellbb230c12015-10-12 05:15:45 +1100100 preempt_enable();
101 }
102}
103
Arnd Bergmann5ef03db2018-05-25 17:16:04 +0200104#ifdef CONFIG_PROC_FS
Christoph Hellwig48776fd2012-03-13 08:52:33 +0000105/* legacy quota interfaces */
106#ifdef CONFIG_XFS_QUOTA
107static int xqm_proc_show(struct seq_file *m, void *v)
108{
109 /* maximum; incore; ratio free to inuse; freelist */
110 seq_printf(m, "%d\t%d\t%d\t%u\n",
Bill O'Donnell80529c42015-10-12 05:19:45 +1100111 0, counter_val(xfsstats.xs_stats, XFSSTAT_END_XQMSTAT),
112 0, counter_val(xfsstats.xs_stats, XFSSTAT_END_XQMSTAT + 1));
Christoph Hellwig48776fd2012-03-13 08:52:33 +0000113 return 0;
114}
115
Christoph Hellwig48776fd2012-03-13 08:52:33 +0000116/* legacy quota stats interface no 2 */
117static int xqmstat_proc_show(struct seq_file *m, void *v)
118{
119 int j;
120
121 seq_printf(m, "qm");
122 for (j = XFSSTAT_END_IBT_V2; j < XFSSTAT_END_XQMSTAT; j++)
Bill O'Donnell80529c42015-10-12 05:19:45 +1100123 seq_printf(m, " %u", counter_val(xfsstats.xs_stats, j));
Christoph Hellwig48776fd2012-03-13 08:52:33 +0000124 seq_putc(m, '\n');
125 return 0;
126}
Christoph Hellwig48776fd2012-03-13 08:52:33 +0000127#endif /* CONFIG_XFS_QUOTA */
128
Christoph Hellwig9f8868f2008-07-18 17:11:46 +1000129int
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130xfs_init_procfs(void)
131{
132 if (!proc_mkdir("fs/xfs", NULL))
Eric Sandeen9e920542015-10-12 18:21:22 +1100133 return -ENOMEM;
Christoph Hellwig9f8868f2008-07-18 17:11:46 +1000134
Bill O'Donnell32f0ea02015-10-12 05:16:45 +1100135 if (!proc_symlink("fs/xfs/stat", NULL,
136 "/sys/fs/xfs/stats/stats"))
Eric Sandeen9e920542015-10-12 18:21:22 +1100137 goto out;
Bill O'Donnell32f0ea02015-10-12 05:16:45 +1100138
Christoph Hellwig48776fd2012-03-13 08:52:33 +0000139#ifdef CONFIG_XFS_QUOTA
Christoph Hellwig3f3942a2018-05-15 15:57:23 +0200140 if (!proc_create_single("fs/xfs/xqmstat", 0, NULL, xqmstat_proc_show))
Eric Sandeen9e920542015-10-12 18:21:22 +1100141 goto out;
Christoph Hellwig3f3942a2018-05-15 15:57:23 +0200142 if (!proc_create_single("fs/xfs/xqm", 0, NULL, xqm_proc_show))
Eric Sandeen9e920542015-10-12 18:21:22 +1100143 goto out;
Christoph Hellwig48776fd2012-03-13 08:52:33 +0000144#endif
Christoph Hellwig9f8868f2008-07-18 17:11:46 +1000145 return 0;
146
Eric Sandeen9e920542015-10-12 18:21:22 +1100147out:
148 remove_proc_subtree("fs/xfs", NULL);
Christoph Hellwig9f8868f2008-07-18 17:11:46 +1000149 return -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150}
151
152void
153xfs_cleanup_procfs(void)
154{
Eric Sandeen9e920542015-10-12 18:21:22 +1100155 remove_proc_subtree("fs/xfs", NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156}
Dave Chinner985ef4d2015-10-19 08:42:46 +1100157#endif /* CONFIG_PROC_FS */