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 | |
| 21 | DEFINE_PER_CPU(struct xfsstats, xfsstats); |
| 22 | |
Alexey Dobriyan | 361735f | 2009-08-28 23:55:00 +0400 | [diff] [blame^] | 23 | static int xfs_stat_proc_show(struct seq_file *m, void *v) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | { |
Alexey Dobriyan | 361735f | 2009-08-28 23:55:00 +0400 | [diff] [blame^] | 25 | int c, i, j, val; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | __uint64_t xs_xstrat_bytes = 0; |
| 27 | __uint64_t xs_write_bytes = 0; |
| 28 | __uint64_t xs_read_bytes = 0; |
| 29 | |
Christoph Hellwig | 1df84c9 | 2006-01-11 15:29:52 +1100 | [diff] [blame] | 30 | static const struct xstats_entry { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | char *desc; |
| 32 | int endpoint; |
| 33 | } xstats[] = { |
| 34 | { "extent_alloc", XFSSTAT_END_EXTENT_ALLOC }, |
| 35 | { "abt", XFSSTAT_END_ALLOC_BTREE }, |
| 36 | { "blk_map", XFSSTAT_END_BLOCK_MAPPING }, |
| 37 | { "bmbt", XFSSTAT_END_BLOCK_MAP_BTREE }, |
| 38 | { "dir", XFSSTAT_END_DIRECTORY_OPS }, |
| 39 | { "trans", XFSSTAT_END_TRANSACTIONS }, |
| 40 | { "ig", XFSSTAT_END_INODE_OPS }, |
| 41 | { "log", XFSSTAT_END_LOG_OPS }, |
| 42 | { "push_ail", XFSSTAT_END_TAIL_PUSHING }, |
| 43 | { "xstrat", XFSSTAT_END_WRITE_CONVERT }, |
| 44 | { "rw", XFSSTAT_END_READ_WRITE_OPS }, |
| 45 | { "attr", XFSSTAT_END_ATTRIBUTE_OPS }, |
| 46 | { "icluster", XFSSTAT_END_INODE_CLUSTER }, |
| 47 | { "vnodes", XFSSTAT_END_VNODE_OPS }, |
| 48 | { "buf", XFSSTAT_END_BUF }, |
David Chinner | 854929f | 2008-10-30 16:55:03 +1100 | [diff] [blame] | 49 | { "abtb2", XFSSTAT_END_ABTB_V2 }, |
| 50 | { "abtc2", XFSSTAT_END_ABTC_V2 }, |
| 51 | { "bmbt2", XFSSTAT_END_BMBT_V2 }, |
| 52 | { "ibt2", XFSSTAT_END_IBT_V2 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | }; |
| 54 | |
| 55 | /* Loop over all stats groups */ |
Alexey Dobriyan | 361735f | 2009-08-28 23:55:00 +0400 | [diff] [blame^] | 56 | for (i=j = 0; i < ARRAY_SIZE(xstats); i++) { |
| 57 | seq_printf(m, "%s", xstats[i].desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | /* inner loop does each group */ |
| 59 | while (j < xstats[i].endpoint) { |
| 60 | val = 0; |
| 61 | /* sum over all cpus */ |
KAMEZAWA Hiroyuki | 6f0419e | 2006-06-23 02:03:00 -0700 | [diff] [blame] | 62 | for_each_possible_cpu(c) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | val += *(((__u32*)&per_cpu(xfsstats, c) + j)); |
Alexey Dobriyan | 361735f | 2009-08-28 23:55:00 +0400 | [diff] [blame^] | 64 | seq_printf(m, " %u", val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | j++; |
| 66 | } |
Alexey Dobriyan | 361735f | 2009-08-28 23:55:00 +0400 | [diff] [blame^] | 67 | seq_putc(m, '\n'); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | } |
| 69 | /* extra precision counters */ |
KAMEZAWA Hiroyuki | 6f0419e | 2006-06-23 02:03:00 -0700 | [diff] [blame] | 70 | for_each_possible_cpu(i) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | xs_xstrat_bytes += per_cpu(xfsstats, i).xs_xstrat_bytes; |
| 72 | xs_write_bytes += per_cpu(xfsstats, i).xs_write_bytes; |
| 73 | xs_read_bytes += per_cpu(xfsstats, i).xs_read_bytes; |
| 74 | } |
| 75 | |
Alexey Dobriyan | 361735f | 2009-08-28 23:55:00 +0400 | [diff] [blame^] | 76 | seq_printf(m, "xpc %Lu %Lu %Lu\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | xs_xstrat_bytes, xs_write_bytes, xs_read_bytes); |
Alexey Dobriyan | 361735f | 2009-08-28 23:55:00 +0400 | [diff] [blame^] | 78 | seq_printf(m, "debug %u\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | #if defined(DEBUG) |
| 80 | 1); |
| 81 | #else |
| 82 | 0); |
| 83 | #endif |
Alexey Dobriyan | 361735f | 2009-08-28 23:55:00 +0400 | [diff] [blame^] | 84 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | } |
| 86 | |
Alexey Dobriyan | 361735f | 2009-08-28 23:55:00 +0400 | [diff] [blame^] | 87 | static int xfs_stat_proc_open(struct inode *inode, struct file *file) |
| 88 | { |
| 89 | return single_open(file, xfs_stat_proc_show, NULL); |
| 90 | } |
| 91 | |
| 92 | static const struct file_operations xfs_stat_proc_fops = { |
| 93 | .owner = THIS_MODULE, |
| 94 | .open = xfs_stat_proc_open, |
| 95 | .read = seq_read, |
| 96 | .llseek = seq_lseek, |
| 97 | .release = single_release, |
| 98 | }; |
| 99 | |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 100 | int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | xfs_init_procfs(void) |
| 102 | { |
| 103 | if (!proc_mkdir("fs/xfs", NULL)) |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 104 | goto out; |
| 105 | |
Alexey Dobriyan | 361735f | 2009-08-28 23:55:00 +0400 | [diff] [blame^] | 106 | if (!proc_create("fs/xfs/stat", 0, NULL, |
| 107 | &xfs_stat_proc_fops)) |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 108 | goto out_remove_entry; |
| 109 | return 0; |
| 110 | |
| 111 | out_remove_entry: |
| 112 | remove_proc_entry("fs/xfs", NULL); |
| 113 | out: |
| 114 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | } |
| 116 | |
| 117 | void |
| 118 | xfs_cleanup_procfs(void) |
| 119 | { |
| 120 | remove_proc_entry("fs/xfs/stat", NULL); |
| 121 | remove_proc_entry("fs/xfs", NULL); |
| 122 | } |