152fd3d6fSZach Brown /* -*- mode: c; c-basic-offset: 8; -*- 252fd3d6fSZach Brown * vim: noexpandtab sw=8 ts=8 sts=0: 352fd3d6fSZach Brown * 452fd3d6fSZach Brown * Copyright (C) 2004, 2005 Oracle. All rights reserved. 552fd3d6fSZach Brown * 652fd3d6fSZach Brown * This program is free software; you can redistribute it and/or 752fd3d6fSZach Brown * modify it under the terms of the GNU General Public 852fd3d6fSZach Brown * License as published by the Free Software Foundation; either 952fd3d6fSZach Brown * version 2 of the License, or (at your option) any later version. 1052fd3d6fSZach Brown * 1152fd3d6fSZach Brown * This program is distributed in the hope that it will be useful, 1252fd3d6fSZach Brown * but WITHOUT ANY WARRANTY; without even the implied warranty of 1352fd3d6fSZach Brown * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 1452fd3d6fSZach Brown * General Public License for more details. 1552fd3d6fSZach Brown * 1652fd3d6fSZach Brown * You should have received a copy of the GNU General Public 1752fd3d6fSZach Brown * License along with this program; if not, write to the 1852fd3d6fSZach Brown * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 1952fd3d6fSZach Brown * Boston, MA 021110-1307, USA. 2052fd3d6fSZach Brown */ 2152fd3d6fSZach Brown 2252fd3d6fSZach Brown #include <linux/module.h> 2352fd3d6fSZach Brown #include <linux/kernel.h> 2452fd3d6fSZach Brown #include <linux/proc_fs.h> 2552fd3d6fSZach Brown #include <linux/seq_file.h> 2652fd3d6fSZach Brown #include <linux/string.h> 2752fd3d6fSZach Brown #include <asm/uaccess.h> 2852fd3d6fSZach Brown 2952fd3d6fSZach Brown #include "masklog.h" 3052fd3d6fSZach Brown 3152fd3d6fSZach Brown struct mlog_bits mlog_and_bits = MLOG_BITS_RHS(MLOG_INITIAL_AND_MASK); 3252fd3d6fSZach Brown EXPORT_SYMBOL_GPL(mlog_and_bits); 3352fd3d6fSZach Brown struct mlog_bits mlog_not_bits = MLOG_BITS_RHS(MLOG_INITIAL_NOT_MASK); 3452fd3d6fSZach Brown EXPORT_SYMBOL_GPL(mlog_not_bits); 3552fd3d6fSZach Brown 3652fd3d6fSZach Brown static ssize_t mlog_mask_show(u64 mask, char *buf) 3752fd3d6fSZach Brown { 3852fd3d6fSZach Brown char *state; 3952fd3d6fSZach Brown 4052fd3d6fSZach Brown if (__mlog_test_u64(mask, mlog_and_bits)) 4152fd3d6fSZach Brown state = "allow"; 4252fd3d6fSZach Brown else if (__mlog_test_u64(mask, mlog_not_bits)) 4352fd3d6fSZach Brown state = "deny"; 4452fd3d6fSZach Brown else 4552fd3d6fSZach Brown state = "off"; 4652fd3d6fSZach Brown 4752fd3d6fSZach Brown return snprintf(buf, PAGE_SIZE, "%s\n", state); 4852fd3d6fSZach Brown } 4952fd3d6fSZach Brown 5052fd3d6fSZach Brown static ssize_t mlog_mask_store(u64 mask, const char *buf, size_t count) 5152fd3d6fSZach Brown { 5252fd3d6fSZach Brown if (!strnicmp(buf, "allow", 5)) { 5352fd3d6fSZach Brown __mlog_set_u64(mask, mlog_and_bits); 5452fd3d6fSZach Brown __mlog_clear_u64(mask, mlog_not_bits); 5552fd3d6fSZach Brown } else if (!strnicmp(buf, "deny", 4)) { 5652fd3d6fSZach Brown __mlog_set_u64(mask, mlog_not_bits); 5752fd3d6fSZach Brown __mlog_clear_u64(mask, mlog_and_bits); 5852fd3d6fSZach Brown } else if (!strnicmp(buf, "off", 3)) { 5952fd3d6fSZach Brown __mlog_clear_u64(mask, mlog_not_bits); 6052fd3d6fSZach Brown __mlog_clear_u64(mask, mlog_and_bits); 6152fd3d6fSZach Brown } else 6252fd3d6fSZach Brown return -EINVAL; 6352fd3d6fSZach Brown 6452fd3d6fSZach Brown return count; 6552fd3d6fSZach Brown } 6652fd3d6fSZach Brown 6752fd3d6fSZach Brown struct mlog_attribute { 6852fd3d6fSZach Brown struct attribute attr; 6952fd3d6fSZach Brown u64 mask; 7052fd3d6fSZach Brown }; 7152fd3d6fSZach Brown 7252fd3d6fSZach Brown #define to_mlog_attr(_attr) container_of(_attr, struct mlog_attribute, attr) 7352fd3d6fSZach Brown 7452fd3d6fSZach Brown #define define_mask(_name) { \ 7552fd3d6fSZach Brown .attr = { \ 7652fd3d6fSZach Brown .name = #_name, \ 7793cc9ac4SJoel Becker .owner = THIS_MODULE, \ 7852fd3d6fSZach Brown .mode = S_IRUGO | S_IWUSR, \ 7952fd3d6fSZach Brown }, \ 8052fd3d6fSZach Brown .mask = ML_##_name, \ 8152fd3d6fSZach Brown } 8252fd3d6fSZach Brown 8352fd3d6fSZach Brown static struct mlog_attribute mlog_attrs[MLOG_MAX_BITS] = { 8452fd3d6fSZach Brown define_mask(ENTRY), 8552fd3d6fSZach Brown define_mask(EXIT), 8652fd3d6fSZach Brown define_mask(TCP), 8752fd3d6fSZach Brown define_mask(MSG), 8852fd3d6fSZach Brown define_mask(SOCKET), 8952fd3d6fSZach Brown define_mask(HEARTBEAT), 9052fd3d6fSZach Brown define_mask(HB_BIO), 9152fd3d6fSZach Brown define_mask(DLMFS), 9252fd3d6fSZach Brown define_mask(DLM), 9352fd3d6fSZach Brown define_mask(DLM_DOMAIN), 9452fd3d6fSZach Brown define_mask(DLM_THREAD), 9552fd3d6fSZach Brown define_mask(DLM_MASTER), 9652fd3d6fSZach Brown define_mask(DLM_RECOVERY), 9752fd3d6fSZach Brown define_mask(AIO), 9852fd3d6fSZach Brown define_mask(JOURNAL), 9952fd3d6fSZach Brown define_mask(DISK_ALLOC), 10052fd3d6fSZach Brown define_mask(SUPER), 10152fd3d6fSZach Brown define_mask(FILE_IO), 10252fd3d6fSZach Brown define_mask(EXTENT_MAP), 10352fd3d6fSZach Brown define_mask(DLM_GLUE), 10452fd3d6fSZach Brown define_mask(BH_IO), 10552fd3d6fSZach Brown define_mask(UPTODATE), 10652fd3d6fSZach Brown define_mask(NAMEI), 10752fd3d6fSZach Brown define_mask(INODE), 10852fd3d6fSZach Brown define_mask(VOTE), 10952fd3d6fSZach Brown define_mask(DCACHE), 11052fd3d6fSZach Brown define_mask(CONN), 11152fd3d6fSZach Brown define_mask(QUORUM), 11252fd3d6fSZach Brown define_mask(EXPORT), 11352fd3d6fSZach Brown define_mask(ERROR), 11452fd3d6fSZach Brown define_mask(NOTICE), 11552fd3d6fSZach Brown define_mask(KTHREAD), 11652fd3d6fSZach Brown }; 11752fd3d6fSZach Brown 11852fd3d6fSZach Brown static struct attribute *mlog_attr_ptrs[MLOG_MAX_BITS] = {NULL, }; 11952fd3d6fSZach Brown 12052fd3d6fSZach Brown static ssize_t mlog_show(struct kobject *obj, struct attribute *attr, 12152fd3d6fSZach Brown char *buf) 12252fd3d6fSZach Brown { 12352fd3d6fSZach Brown struct mlog_attribute *mlog_attr = to_mlog_attr(attr); 12452fd3d6fSZach Brown 12552fd3d6fSZach Brown return mlog_mask_show(mlog_attr->mask, buf); 12652fd3d6fSZach Brown } 12752fd3d6fSZach Brown 12852fd3d6fSZach Brown static ssize_t mlog_store(struct kobject *obj, struct attribute *attr, 12952fd3d6fSZach Brown const char *buf, size_t count) 13052fd3d6fSZach Brown { 13152fd3d6fSZach Brown struct mlog_attribute *mlog_attr = to_mlog_attr(attr); 13252fd3d6fSZach Brown 13352fd3d6fSZach Brown return mlog_mask_store(mlog_attr->mask, buf, count); 13452fd3d6fSZach Brown } 13552fd3d6fSZach Brown 13652fd3d6fSZach Brown static struct sysfs_ops mlog_attr_ops = { 13752fd3d6fSZach Brown .show = mlog_show, 13852fd3d6fSZach Brown .store = mlog_store, 13952fd3d6fSZach Brown }; 14052fd3d6fSZach Brown 14152fd3d6fSZach Brown static struct kobj_type mlog_ktype = { 14252fd3d6fSZach Brown .default_attrs = mlog_attr_ptrs, 14352fd3d6fSZach Brown .sysfs_ops = &mlog_attr_ops, 14452fd3d6fSZach Brown }; 14552fd3d6fSZach Brown 14652fd3d6fSZach Brown static struct kset mlog_kset = { 14752fd3d6fSZach Brown .kobj = {.name = "logmask", .ktype = &mlog_ktype}, 14852fd3d6fSZach Brown }; 14952fd3d6fSZach Brown 150*823bccfcSGreg Kroah-Hartman int mlog_sys_init(struct kset *o2cb_subsys) 15152fd3d6fSZach Brown { 15252fd3d6fSZach Brown int i = 0; 15352fd3d6fSZach Brown 15452fd3d6fSZach Brown while (mlog_attrs[i].attr.mode) { 15552fd3d6fSZach Brown mlog_attr_ptrs[i] = &mlog_attrs[i].attr; 15652fd3d6fSZach Brown i++; 15752fd3d6fSZach Brown } 15852fd3d6fSZach Brown mlog_attr_ptrs[i] = NULL; 15952fd3d6fSZach Brown 160*823bccfcSGreg Kroah-Hartman kobj_set_kset_s(&mlog_kset, o2cb_subsys); 16152fd3d6fSZach Brown return kset_register(&mlog_kset); 16252fd3d6fSZach Brown } 16352fd3d6fSZach Brown 16452fd3d6fSZach Brown void mlog_sys_shutdown(void) 16552fd3d6fSZach Brown { 16652fd3d6fSZach Brown kset_unregister(&mlog_kset); 16752fd3d6fSZach Brown } 168