Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 2 | * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. |
| 3 | * All Rights Reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License as |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * published by the Free Software Foundation. |
| 8 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 9 | * This program is distributed in the hope that it would be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write the Free Software Foundation, |
| 16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include "xfs.h" |
| 19 | #include <linux/proc_fs.h> |
| 20 | |
Bill O'Donnell | 80529c4 | 2015-10-12 05:19:45 +1100 | [diff] [blame] | 21 | struct xstats xfsstats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | |
Bill O'Donnell | 80529c4 | 2015-10-12 05:19:45 +1100 | [diff] [blame] | 23 | static int counter_val(struct xfsstats __percpu *stats, int idx) |
Christoph Hellwig | 48776fd | 2012-03-13 08:52:33 +0000 | [diff] [blame] | 24 | { |
| 25 | int val = 0, cpu; |
| 26 | |
| 27 | for_each_possible_cpu(cpu) |
Bill O'Donnell | 80529c4 | 2015-10-12 05:19:45 +1100 | [diff] [blame] | 28 | val += *(((__u32 *)per_cpu_ptr(stats, cpu) + idx)); |
Christoph Hellwig | 48776fd | 2012-03-13 08:52:33 +0000 | [diff] [blame] | 29 | return val; |
| 30 | } |
| 31 | |
Bill O'Donnell | 80529c4 | 2015-10-12 05:19:45 +1100 | [diff] [blame] | 32 | int xfs_stats_format(struct xfsstats __percpu *stats, char *buf) |
Bill O'Donnell | bb230c1 | 2015-10-12 05:15:45 +1100 | [diff] [blame] | 33 | { |
| 34 | int i, j; |
| 35 | int len = 0; |
| 36 | __uint64_t xs_xstrat_bytes = 0; |
| 37 | __uint64_t xs_write_bytes = 0; |
| 38 | __uint64_t xs_read_bytes = 0; |
| 39 | |
| 40 | static const struct xstats_entry { |
| 41 | char *desc; |
| 42 | int endpoint; |
| 43 | } xstats[] = { |
| 44 | { "extent_alloc", XFSSTAT_END_EXTENT_ALLOC }, |
| 45 | { "abt", XFSSTAT_END_ALLOC_BTREE }, |
| 46 | { "blk_map", XFSSTAT_END_BLOCK_MAPPING }, |
| 47 | { "bmbt", XFSSTAT_END_BLOCK_MAP_BTREE }, |
| 48 | { "dir", XFSSTAT_END_DIRECTORY_OPS }, |
| 49 | { "trans", XFSSTAT_END_TRANSACTIONS }, |
| 50 | { "ig", XFSSTAT_END_INODE_OPS }, |
| 51 | { "log", XFSSTAT_END_LOG_OPS }, |
| 52 | { "push_ail", XFSSTAT_END_TAIL_PUSHING }, |
| 53 | { "xstrat", XFSSTAT_END_WRITE_CONVERT }, |
| 54 | { "rw", XFSSTAT_END_READ_WRITE_OPS }, |
| 55 | { "attr", XFSSTAT_END_ATTRIBUTE_OPS }, |
| 56 | { "icluster", XFSSTAT_END_INODE_CLUSTER }, |
| 57 | { "vnodes", XFSSTAT_END_VNODE_OPS }, |
| 58 | { "buf", XFSSTAT_END_BUF }, |
| 59 | { "abtb2", XFSSTAT_END_ABTB_V2 }, |
| 60 | { "abtc2", XFSSTAT_END_ABTC_V2 }, |
| 61 | { "bmbt2", XFSSTAT_END_BMBT_V2 }, |
| 62 | { "ibt2", XFSSTAT_END_IBT_V2 }, |
| 63 | { "fibt2", XFSSTAT_END_FIBT_V2 }, |
| 64 | /* we print both series of quota information together */ |
| 65 | { "qm", XFSSTAT_END_QM }, |
| 66 | }; |
| 67 | |
| 68 | /* Loop over all stats groups */ |
| 69 | |
| 70 | for (i = j = 0; i < ARRAY_SIZE(xstats); i++) { |
| 71 | len += snprintf(buf + len, PATH_MAX - len, "%s", |
| 72 | xstats[i].desc); |
| 73 | /* inner loop does each group */ |
| 74 | for (; j < xstats[i].endpoint; j++) |
| 75 | len += snprintf(buf + len, PATH_MAX - len, " %u", |
Bill O'Donnell | 80529c4 | 2015-10-12 05:19:45 +1100 | [diff] [blame] | 76 | counter_val(stats, j)); |
Bill O'Donnell | bb230c1 | 2015-10-12 05:15:45 +1100 | [diff] [blame] | 77 | len += snprintf(buf + len, PATH_MAX - len, "\n"); |
| 78 | } |
| 79 | /* extra precision counters */ |
| 80 | for_each_possible_cpu(i) { |
Bill O'Donnell | 80529c4 | 2015-10-12 05:19:45 +1100 | [diff] [blame] | 81 | xs_xstrat_bytes += per_cpu_ptr(stats, i)->xs_xstrat_bytes; |
| 82 | xs_write_bytes += per_cpu_ptr(stats, i)->xs_write_bytes; |
| 83 | xs_read_bytes += per_cpu_ptr(stats, i)->xs_read_bytes; |
Bill O'Donnell | bb230c1 | 2015-10-12 05:15:45 +1100 | [diff] [blame] | 84 | } |
| 85 | |
| 86 | len += snprintf(buf + len, PATH_MAX-len, "xpc %Lu %Lu %Lu\n", |
| 87 | xs_xstrat_bytes, xs_write_bytes, xs_read_bytes); |
| 88 | len += snprintf(buf + len, PATH_MAX-len, "debug %u\n", |
| 89 | #if defined(DEBUG) |
| 90 | 1); |
| 91 | #else |
| 92 | 0); |
| 93 | #endif |
| 94 | |
| 95 | return len; |
| 96 | } |
| 97 | |
Bill O'Donnell | 80529c4 | 2015-10-12 05:19:45 +1100 | [diff] [blame] | 98 | void xfs_stats_clearall(struct xfsstats __percpu *stats) |
Bill O'Donnell | bb230c1 | 2015-10-12 05:15:45 +1100 | [diff] [blame] | 99 | { |
| 100 | int c; |
| 101 | __uint32_t vn_active; |
| 102 | |
| 103 | xfs_notice(NULL, "Clearing xfsstats"); |
| 104 | for_each_possible_cpu(c) { |
| 105 | preempt_disable(); |
| 106 | /* save vn_active, it's a universal truth! */ |
Bill O'Donnell | 80529c4 | 2015-10-12 05:19:45 +1100 | [diff] [blame] | 107 | vn_active = per_cpu_ptr(stats, c)->vn_active; |
| 108 | memset(per_cpu_ptr(stats, c), 0, sizeof(*stats)); |
| 109 | per_cpu_ptr(stats, c)->vn_active = vn_active; |
Bill O'Donnell | bb230c1 | 2015-10-12 05:15:45 +1100 | [diff] [blame] | 110 | preempt_enable(); |
| 111 | } |
| 112 | } |
| 113 | |
Christoph Hellwig | 48776fd | 2012-03-13 08:52:33 +0000 | [diff] [blame] | 114 | /* legacy quota interfaces */ |
| 115 | #ifdef CONFIG_XFS_QUOTA |
| 116 | static int xqm_proc_show(struct seq_file *m, void *v) |
| 117 | { |
| 118 | /* maximum; incore; ratio free to inuse; freelist */ |
| 119 | seq_printf(m, "%d\t%d\t%d\t%u\n", |
Bill O'Donnell | 80529c4 | 2015-10-12 05:19:45 +1100 | [diff] [blame] | 120 | 0, counter_val(xfsstats.xs_stats, XFSSTAT_END_XQMSTAT), |
| 121 | 0, counter_val(xfsstats.xs_stats, XFSSTAT_END_XQMSTAT + 1)); |
Christoph Hellwig | 48776fd | 2012-03-13 08:52:33 +0000 | [diff] [blame] | 122 | return 0; |
| 123 | } |
| 124 | |
| 125 | static int xqm_proc_open(struct inode *inode, struct file *file) |
| 126 | { |
| 127 | return single_open(file, xqm_proc_show, NULL); |
| 128 | } |
| 129 | |
| 130 | static const struct file_operations xqm_proc_fops = { |
| 131 | .owner = THIS_MODULE, |
| 132 | .open = xqm_proc_open, |
| 133 | .read = seq_read, |
| 134 | .llseek = seq_lseek, |
| 135 | .release = single_release, |
| 136 | }; |
| 137 | |
| 138 | /* legacy quota stats interface no 2 */ |
| 139 | static int xqmstat_proc_show(struct seq_file *m, void *v) |
| 140 | { |
| 141 | int j; |
| 142 | |
| 143 | seq_printf(m, "qm"); |
| 144 | for (j = XFSSTAT_END_IBT_V2; j < XFSSTAT_END_XQMSTAT; j++) |
Bill O'Donnell | 80529c4 | 2015-10-12 05:19:45 +1100 | [diff] [blame] | 145 | seq_printf(m, " %u", counter_val(xfsstats.xs_stats, j)); |
Christoph Hellwig | 48776fd | 2012-03-13 08:52:33 +0000 | [diff] [blame] | 146 | seq_putc(m, '\n'); |
| 147 | return 0; |
| 148 | } |
| 149 | |
| 150 | static int xqmstat_proc_open(struct inode *inode, struct file *file) |
| 151 | { |
| 152 | return single_open(file, xqmstat_proc_show, NULL); |
| 153 | } |
| 154 | |
| 155 | static const struct file_operations xqmstat_proc_fops = { |
| 156 | .owner = THIS_MODULE, |
| 157 | .open = xqmstat_proc_open, |
| 158 | .read = seq_read, |
| 159 | .llseek = seq_lseek, |
| 160 | .release = single_release, |
| 161 | }; |
| 162 | #endif /* CONFIG_XFS_QUOTA */ |
| 163 | |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 164 | int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | xfs_init_procfs(void) |
| 166 | { |
| 167 | if (!proc_mkdir("fs/xfs", NULL)) |
Eric Sandeen | 9e92054 | 2015-10-12 18:21:22 +1100 | [diff] [blame^] | 168 | return -ENOMEM; |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 169 | |
Bill O'Donnell | 32f0ea0 | 2015-10-12 05:16:45 +1100 | [diff] [blame] | 170 | if (!proc_symlink("fs/xfs/stat", NULL, |
| 171 | "/sys/fs/xfs/stats/stats")) |
Eric Sandeen | 9e92054 | 2015-10-12 18:21:22 +1100 | [diff] [blame^] | 172 | goto out; |
Bill O'Donnell | 32f0ea0 | 2015-10-12 05:16:45 +1100 | [diff] [blame] | 173 | |
Christoph Hellwig | 48776fd | 2012-03-13 08:52:33 +0000 | [diff] [blame] | 174 | #ifdef CONFIG_XFS_QUOTA |
| 175 | if (!proc_create("fs/xfs/xqmstat", 0, NULL, |
| 176 | &xqmstat_proc_fops)) |
Eric Sandeen | 9e92054 | 2015-10-12 18:21:22 +1100 | [diff] [blame^] | 177 | goto out; |
Christoph Hellwig | 48776fd | 2012-03-13 08:52:33 +0000 | [diff] [blame] | 178 | if (!proc_create("fs/xfs/xqm", 0, NULL, |
| 179 | &xqm_proc_fops)) |
Eric Sandeen | 9e92054 | 2015-10-12 18:21:22 +1100 | [diff] [blame^] | 180 | goto out; |
Christoph Hellwig | 48776fd | 2012-03-13 08:52:33 +0000 | [diff] [blame] | 181 | #endif |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 182 | return 0; |
| 183 | |
Eric Sandeen | 9e92054 | 2015-10-12 18:21:22 +1100 | [diff] [blame^] | 184 | out: |
| 185 | remove_proc_subtree("fs/xfs", NULL); |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 186 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | } |
| 188 | |
| 189 | void |
| 190 | xfs_cleanup_procfs(void) |
| 191 | { |
Eric Sandeen | 9e92054 | 2015-10-12 18:21:22 +1100 | [diff] [blame^] | 192 | remove_proc_subtree("fs/xfs", NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | } |