Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 | /* * Copyright (C) International Business Machines Corp., 2000-2004 * Portions Copyright (C) Christoph Hellwig, 2001-2002 * * 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; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will 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 to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/fs.h> #include <linux/ctype.h> #include <linux/module.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <asm/uaccess.h> #include "jfs_incore.h" #include "jfs_filsys.h" #include "jfs_debug.h" #ifdef PROC_FS_JFS /* see jfs_debug.h */ static struct proc_dir_entry *base; #ifdef CONFIG_JFS_DEBUG static int jfs_loglevel_proc_show(struct seq_file *m, void *v) { seq_printf(m, "%d\n", jfsloglevel); return 0; } static int jfs_loglevel_proc_open(struct inode *inode, struct file *file) { return single_open(file, jfs_loglevel_proc_show, NULL); } static ssize_t jfs_loglevel_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) { char c; if (get_user(c, buffer)) return -EFAULT; /* yes, I know this is an ASCIIism. --hch */ if (c < '0' || c > '9') return -EINVAL; jfsloglevel = c - '0'; return count; } static const struct file_operations jfs_loglevel_proc_fops = { .open = jfs_loglevel_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .write = jfs_loglevel_proc_write, }; #endif static struct { const char *name; const struct file_operations *proc_fops; } Entries[] = { #ifdef CONFIG_JFS_STATISTICS { "lmstats", &jfs_lmstats_proc_fops, }, { "txstats", &jfs_txstats_proc_fops, }, { "xtstat", &jfs_xtstat_proc_fops, }, { "mpstat", &jfs_mpstat_proc_fops, }, #endif #ifdef CONFIG_JFS_DEBUG { "TxAnchor", &jfs_txanchor_proc_fops, }, { "loglevel", &jfs_loglevel_proc_fops } #endif }; #define NPROCENT ARRAY_SIZE(Entries) void jfs_proc_init(void) { int i; if (!(base = proc_mkdir("fs/jfs", NULL))) return; for (i = 0; i < NPROCENT; i++) proc_create(Entries[i].name, 0, base, Entries[i].proc_fops); } void jfs_proc_clean(void) { int i; if (base) { for (i = 0; i < NPROCENT; i++) remove_proc_entry(Entries[i].name, base); remove_proc_entry("fs/jfs", NULL); } } #endif /* PROC_FS_JFS */ |