/* * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. * All Rights Reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include "xfs.h" #include <linux/proc_fs.h> DEFINE_PER_CPU(struct xfsstats, xfsstats); static int counter_val(int idx) { int val = 0, cpu; for_each_possible_cpu(cpu) val += *(((__u32 *)&per_cpu(xfsstats, cpu) + idx)); return val; } static int xfs_stat_proc_show(struct seq_file *m, void *v) { int i, j; __uint64_t xs_xstrat_bytes = 0; __uint64_t xs_write_bytes = 0; __uint64_t xs_read_bytes = 0; static const struct xstats_entry { char *desc; int endpoint; } xstats[] = { { "extent_alloc", XFSSTAT_END_EXTENT_ALLOC }, { "abt", XFSSTAT_END_ALLOC_BTREE }, { "blk_map", XFSSTAT_END_BLOCK_MAPPING }, { "bmbt", XFSSTAT_END_BLOCK_MAP_BTREE }, { "dir", XFSSTAT_END_DIRECTORY_OPS }, { "trans", XFSSTAT_END_TRANSACTIONS }, { "ig", XFSSTAT_END_INODE_OPS }, { "log", XFSSTAT_END_LOG_OPS }, { "push_ail", XFSSTAT_END_TAIL_PUSHING }, { "xstrat", XFSSTAT_END_WRITE_CONVERT }, { "rw", XFSSTAT_END_READ_WRITE_OPS }, { "attr", XFSSTAT_END_ATTRIBUTE_OPS }, { "icluster", XFSSTAT_END_INODE_CLUSTER }, { "vnodes", XFSSTAT_END_VNODE_OPS }, { "buf", XFSSTAT_END_BUF }, { "abtb2", XFSSTAT_END_ABTB_V2 }, { "abtc2", XFSSTAT_END_ABTC_V2 }, { "bmbt2", XFSSTAT_END_BMBT_V2 }, { "ibt2", XFSSTAT_END_IBT_V2 }, { "fibt2", XFSSTAT_END_FIBT_V2 }, /* we print both series of quota information together */ { "qm", XFSSTAT_END_QM }, }; /* Loop over all stats groups */ for (i = j = 0; i < ARRAY_SIZE(xstats); i++) { seq_printf(m, "%s", xstats[i].desc); /* inner loop does each group */ for (; j < xstats[i].endpoint; j++) seq_printf(m, " %u", counter_val(j)); seq_putc(m, '\n'); } /* extra precision counters */ for_each_possible_cpu(i) { xs_xstrat_bytes += per_cpu(xfsstats, i).xs_xstrat_bytes; xs_write_bytes += per_cpu(xfsstats, i).xs_write_bytes; xs_read_bytes += per_cpu(xfsstats, i).xs_read_bytes; } seq_printf(m, "xpc %Lu %Lu %Lu\n", xs_xstrat_bytes, xs_write_bytes, xs_read_bytes); seq_printf(m, "debug %u\n", #if defined(DEBUG) 1); #else 0); #endif return 0; } static int xfs_stat_proc_open(struct inode *inode, struct file *file) { return single_open(file, xfs_stat_proc_show, NULL); } static const struct file_operations xfs_stat_proc_fops = { .owner = THIS_MODULE, .open = xfs_stat_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; /* legacy quota interfaces */ #ifdef CONFIG_XFS_QUOTA static int xqm_proc_show(struct seq_file *m, void *v) { /* maximum; incore; ratio free to inuse; freelist */ seq_printf(m, "%d\t%d\t%d\t%u\n", 0, counter_val(XFSSTAT_END_XQMSTAT), 0, counter_val(XFSSTAT_END_XQMSTAT + 1)); return 0; } static int xqm_proc_open(struct inode *inode, struct file *file) { return single_open(file, xqm_proc_show, NULL); } static const struct file_operations xqm_proc_fops = { .owner = THIS_MODULE, .open = xqm_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; /* legacy quota stats interface no 2 */ static int xqmstat_proc_show(struct seq_file *m, void *v) { int j; seq_printf(m, "qm"); for (j = XFSSTAT_END_IBT_V2; j < XFSSTAT_END_XQMSTAT; j++) seq_printf(m, " %u", counter_val(j)); seq_putc(m, '\n'); return 0; } static int xqmstat_proc_open(struct inode *inode, struct file *file) { return single_open(file, xqmstat_proc_show, NULL); } static const struct file_operations xqmstat_proc_fops = { .owner = THIS_MODULE, .open = xqmstat_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; #endif /* CONFIG_XFS_QUOTA */ int xfs_init_procfs(void) { if (!proc_mkdir("fs/xfs", NULL)) goto out; if (!proc_create("fs/xfs/stat", 0, NULL, &xfs_stat_proc_fops)) goto out_remove_xfs_dir; #ifdef CONFIG_XFS_QUOTA if (!proc_create("fs/xfs/xqmstat", 0, NULL, &xqmstat_proc_fops)) goto out_remove_stat_file; if (!proc_create("fs/xfs/xqm", 0, NULL, &xqm_proc_fops)) goto out_remove_xqmstat_file; #endif return 0; #ifdef CONFIG_XFS_QUOTA out_remove_xqmstat_file: remove_proc_entry("fs/xfs/xqmstat", NULL); out_remove_stat_file: remove_proc_entry("fs/xfs/stat", NULL); #endif out_remove_xfs_dir: remove_proc_entry("fs/xfs", NULL); out: return -ENOMEM; } void xfs_cleanup_procfs(void) { #ifdef CONFIG_XFS_QUOTA remove_proc_entry("fs/xfs/xqm", NULL); remove_proc_entry("fs/xfs/xqmstat", NULL); #endif remove_proc_entry("fs/xfs/stat", NULL); remove_proc_entry("fs/xfs", NULL); }