X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Finclude%2Flinux%2Flprocfs_status.h;h=ac2e7fc44b1844cdf5c447a6d86102874e9410cc;hb=5bd85b467a4b6ef57d7a3c119296c9a317afc73b;hp=2e2474fa2d210a40dce487cb21ae5e7b14a7ed53;hpb=8c49b5e84e6c913505ae686b6e0b3b57565751da;p=fs%2Flustre-release.git diff --git a/lustre/include/linux/lprocfs_status.h b/lustre/include/linux/lprocfs_status.h index 2e2474f..ac2e7fc 100644 --- a/lustre/include/linux/lprocfs_status.h +++ b/lustre/include/linux/lprocfs_status.h @@ -1,392 +1,62 @@ -/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- - * vim:expandtab:shiftwidth=8:tabstop=8: +/* + * GPL HEADER START * - * Copyright (C) 2002 Cluster File Systems, Inc. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * - * This file is part of Lustre, http://www.lustre.org. + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. * - * Lustre is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. + * 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 version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). * - * Lustre 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 + * version 2 along with this program; If not, see + * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf * - * You should have received a copy of the GNU General Public License - * along with Lustre; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. * - * Top level header file for LProc SNMP - * Author: Hariharan Thantry thantry@users.sourceforge.net + * GPL HEADER END */ -#ifndef _LPROCFS_SNMP_H -#define _LPROCFS_SNMP_H - - -#ifdef __KERNEL__ -#include -#include -#include -#include -#include -#include - -# if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) -# include -# else -# define kstatfs statfs -# endif - -#else -# define kstatfs statfs -#endif - - -#undef LPROCFS -#if (defined(__KERNEL__) && defined(CONFIG_PROC_FS)) -# define LPROCFS -#endif - -struct lprocfs_vars { - const char *name; - read_proc_t *read_fptr; - write_proc_t *write_fptr; - void *data; -}; - -struct lprocfs_static_vars { - struct lprocfs_vars *module_vars; - struct lprocfs_vars *obd_vars; -}; - -/* An lprocfs counter can be configured using the enum bit masks below. +/* + * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. + * Use is subject to license terms. * - * LPROCFS_CNTR_EXTERNALLOCK indicates that an external lock already - * protects this counter from concurrent updates. If not specified, - * lprocfs an internal per-counter lock variable. External locks are - * not used to protect counter increments, but are used to protect - * counter readout and resets. + * Copyright (c) 2011, Intel Corporation. + */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. * - * LPROCFS_CNTR_AVGMINMAX indicates a multi-valued counter samples, - * (i.e. counter can be incremented by more than "1"). When specified, - * the counter maintains min, max and sum in addition to a simple - * invocation count. This allows averages to be be computed. - * If not specified, the counter is an increment-by-1 counter. - * min, max, sum, etc. are not maintained. + * lustre/include/linux/lprocfs_status.h * - * LPROCFS_CNTR_STDDEV indicates that the counter should track sum of - * squares (for multi-valued counter samples only). This allows - * external computation of standard deviation, but involves a 64-bit - * multiply per counter increment. - */ - -enum { - LPROCFS_CNTR_EXTERNALLOCK = 0x0001, - LPROCFS_CNTR_AVGMINMAX = 0x0002, - LPROCFS_CNTR_STDDEV = 0x0004, - - /* counter data type */ - LPROCFS_TYPE_REGS = 0x0100, - LPROCFS_TYPE_BYTES = 0x0200, - LPROCFS_TYPE_PAGES = 0x0400, - LPROCFS_TYPE_CYCLE = 0x0800, -}; - -struct lprocfs_atomic { - atomic_t la_entry; - atomic_t la_exit; -}; - -struct lprocfs_counter { - struct lprocfs_atomic lc_cntl; /* may need to move to per set */ - unsigned int lc_config; - __u64 lc_count; - __u64 lc_sum; - __u64 lc_min; - __u64 lc_max; - __u64 lc_sumsquare; - const char *lc_name; /* must be static */ - const char *lc_units; /* must be static */ -}; - -struct lprocfs_percpu { - struct lprocfs_counter lp_cntr[0]; -}; - - -struct lprocfs_stats { - unsigned int ls_num; /* # of counters */ - unsigned int ls_percpu_size; - struct lprocfs_percpu *ls_percpu[0]; -}; - - -/* class_obd.c */ -extern struct proc_dir_entry *proc_lustre_root; - -struct obd_device; -struct file; - -#ifdef LPROCFS - -/* Two optimized LPROCFS counter increment functions are provided: - * lprocfs_counter_incr(cntr, value) - optimized for by-one counters - * lprocfs_counter_add(cntr) - use for multi-valued counters - * Counter data layout allows config flag, counter lock and the - * count itself to reside within a single cache line. + * Top level header file for LProc SNMP + * + * Author: Hariharan Thantry thantry@users.sourceforge.net */ +#ifndef _LINUX_LPROCFS_SNMP_H +#define _LINUX_LPROCFS_SNMP_H -static inline void lprocfs_counter_add(struct lprocfs_stats *stats, int idx, - long amount) -{ - struct lprocfs_counter *percpu_cntr; - - LASSERT(stats != NULL); - percpu_cntr = &(stats->ls_percpu[smp_processor_id()]->lp_cntr[idx]); - atomic_inc(&percpu_cntr->lc_cntl.la_entry); - percpu_cntr->lc_count++; - - if (percpu_cntr->lc_config & LPROCFS_CNTR_AVGMINMAX) { - percpu_cntr->lc_sum += amount; - if (percpu_cntr->lc_config & LPROCFS_CNTR_STDDEV) - percpu_cntr->lc_sumsquare += (__u64)amount * amount; - if (amount < percpu_cntr->lc_min) - percpu_cntr->lc_min = amount; - if (amount > percpu_cntr->lc_max) - percpu_cntr->lc_max = amount; - } - atomic_inc(&percpu_cntr->lc_cntl.la_exit); -} - -static inline void lprocfs_counter_incr(struct lprocfs_stats *stats, int idx) -{ - struct lprocfs_counter *percpu_cntr; - - LASSERT(stats != NULL); - percpu_cntr = &(stats->ls_percpu[smp_processor_id()]->lp_cntr[idx]); - atomic_inc(&percpu_cntr->lc_cntl.la_entry); - percpu_cntr->lc_count++; - atomic_inc(&percpu_cntr->lc_cntl.la_exit); -} - -extern struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num); -extern void lprocfs_free_stats(struct lprocfs_stats *stats); -extern void lprocfs_counter_init(struct lprocfs_stats *stats, int index, - unsigned conf, const char *name, - const char *units); -extern int lprocfs_alloc_obd_stats(struct obd_device *obddev, - unsigned int num_private_stats); -extern void lprocfs_free_obd_stats(struct obd_device *obddev); -extern int lprocfs_alloc_md_stats(struct obd_device *obddev, - unsigned int num_private_stats); -extern void lprocfs_free_md_stats(struct obd_device *obddev); -extern int lprocfs_register_stats(struct proc_dir_entry *root, - const char *name, - struct lprocfs_stats *stats); - -#define LPROCFS_INIT_MULTI_VARS(array, size) \ -void lprocfs_init_multi_vars(unsigned int idx, \ - struct lprocfs_static_vars *x) \ -{ \ - struct lprocfs_static_vars *glob = (struct lprocfs_static_vars*)array; \ - LASSERT(glob != 0); \ - LASSERT(idx < (unsigned int)(size)); \ - x->module_vars = glob[idx].module_vars; \ - x->obd_vars = glob[idx].obd_vars; \ -} \ - -#define LPROCFS_INIT_VARS(name, vclass, vinstance) \ -void lprocfs_##name##_init_vars(struct lprocfs_static_vars *x) \ -{ \ - x->module_vars = vclass; \ - x->obd_vars = vinstance; \ -} \ - -#define lprocfs_init_vars(NAME, VAR) \ -do { \ - extern void lprocfs_##NAME##_init_vars(struct lprocfs_static_vars *); \ - lprocfs_##NAME##_init_vars(VAR); \ -} while (0) - -extern void lprocfs_init_multi_vars(unsigned int idx, - struct lprocfs_static_vars *var); -/* lprocfs_status.c */ -extern int lprocfs_add_vars(struct proc_dir_entry *root, - struct lprocfs_vars *var, - void *data); - -extern struct proc_dir_entry *lprocfs_register(const char *name, - struct proc_dir_entry *parent, - struct lprocfs_vars *list, - void *data); - -extern void lprocfs_remove(struct proc_dir_entry *root); - -extern struct proc_dir_entry *lprocfs_srch(struct proc_dir_entry *root, - const char *name); - -extern int lprocfs_obd_attach(struct obd_device *obd, struct lprocfs_vars *list); -extern int lprocfs_obd_detach(struct obd_device *obd); - -/* Generic callbacks */ - -extern int lprocfs_rd_u64(char *page, char **start, off_t off, - int count, int *eof, void *data); -extern int lprocfs_rd_uuid(char *page, char **start, off_t off, - int count, int *eof, void *data); -extern int lprocfs_rd_name(char *page, char **start, off_t off, - int count, int *eof, void *data); -extern int lprocfs_rd_fstype(char *page, char **start, off_t off, - int count, int *eof, void *data); -extern int lprocfs_rd_server_uuid(char *page, char **start, off_t off, - int count, int *eof, void *data); -extern int lprocfs_rd_conn_uuid(char *page, char **start, off_t off, - int count, int *eof, void *data); -extern int lprocfs_rd_num_exports(char *page, char **start, off_t off, - int count, int *eof, void *data); -extern int lprocfs_rd_numrefs(char *page, char **start, off_t off, - int count, int *eof, void *data); - -/* Statfs helpers */ -extern int lprocfs_rd_blksize(char *page, char **start, off_t off, - int count, int *eof, void *data); -extern int lprocfs_rd_kbytestotal(char *page, char **start, off_t off, - int count, int *eof, void *data); -extern int lprocfs_rd_kbytesfree(char *page, char **start, off_t off, - int count, int *eof, void *data); -extern int lprocfs_rd_kbytesavail(char *page, char **start, off_t off, - int count, int *eof, void *data); -extern int lprocfs_rd_filestotal(char *page, char **start, off_t off, - int count, int *eof, void *data); -extern int lprocfs_rd_filesfree(char *page, char **start, off_t off, - int count, int *eof, void *data); -extern int lprocfs_rd_filegroups(char *page, char **start, off_t off, - int count, int *eof, void *data); - -extern int lprocfs_write_helper(const char *buffer, unsigned long count, - int *val); -extern int lprocfs_write_u64_helper(const char *buffer, unsigned long count, - __u64 *val); -int lprocfs_obd_seq_create(struct obd_device *dev, char *name, mode_t mode, - struct file_operations *seq_fops, void *data); -struct obd_histogram; -void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value); -void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value); -void lprocfs_oh_clear(struct obd_histogram *oh); -unsigned long lprocfs_oh_sum(struct obd_histogram *oh); - -struct obd_service_time; -void lprocfs_stime_record(struct obd_service_time *stime, - struct timeval *large, struct timeval *small); -unsigned long lprocfs_stime_avg_ms(struct obd_service_time *stime); -unsigned long lprocfs_stime_avg_us(struct obd_service_time *stime); - -/* lprocfs_status.c: counter read/write functions */ -extern int lprocfs_counter_read(char *page, char **start, off_t off, - int count, int *eof, void *data); -extern int lprocfs_counter_write(struct file *file, const char *buffer, - unsigned long count, void *data); +#ifndef _LPROCFS_SNMP_H +#error Do not #include this file directly. #include instead +#endif -/* lprocfs_status.c: recovery status */ -int lprocfs_obd_rd_recovery_status(char *page, char **start, off_t off, - int count, int *eof, void *data); +#ifdef __KERNEL__ +#include +#include +#include +#include +#include +#include +#include #else -/* LPROCFS is not defined */ -static inline void lprocfs_counter_add(struct lprocfs_stats *stats, - int index, long amount) { return; } -static inline void lprocfs_counter_incr(struct lprocfs_stats *stats, - int index) { return; } -static inline void lprocfs_counter_init(struct lprocfs_stats *stats, - int index, unsigned conf, - const char *name, const char *units) -{ return; } -struct obd_service_time; -static inline void lprocfs_stime_record(struct obd_service_time *stime, - struct timeval *large, struct timeval *small) -{ return; } - - -static inline struct lprocfs_stats* lprocfs_alloc_stats(unsigned int num) -{ return NULL; } -static inline void lprocfs_free_stats(struct lprocfs_stats *stats) -{ return; } - -static inline int lprocfs_register_stats(struct proc_dir_entry *root, - const char *name, - struct lprocfs_stats *stats) -{ return 0; } -static inline int lprocfs_alloc_obd_stats(struct obd_device *obddev, - unsigned int num_private_stats) -{ return 0; } -static inline void lprocfs_free_obd_stats(struct obd_device *obddev) -{ return; } - -static inline struct proc_dir_entry * -lprocfs_register(const char *name, struct proc_dir_entry *parent, - struct lprocfs_vars *list, void *data) { return NULL; } -#define LPROCFS_INIT_MULTI_VARS(array, size) do {} while (0) -static inline void lprocfs_init_multi_vars(unsigned int idx, - struct lprocfs_static_vars *x) { return; } -#define LPROCFS_INIT_VARS(name, vclass, vinstance) do {} while (0) -#define lprocfs_init_vars(...) do {} while (0) -static inline int lprocfs_add_vars(struct proc_dir_entry *root, - struct lprocfs_vars *var, - void *data) { return 0; } -static inline void lprocfs_remove(struct proc_dir_entry *root) {}; -static inline struct proc_dir_entry *lprocfs_srch(struct proc_dir_entry *head, - const char *name) {return 0;} -static inline int lprocfs_obd_attach(struct obd_device *dev, - struct lprocfs_vars *list) { return 0; } -static inline int lprocfs_obd_detach(struct obd_device *dev) { return 0; } -static inline int lprocfs_rd_u64(char *page, char **start, off_t off, - int count, int *eof, void *data) { return 0; } -static inline int lprocfs_rd_uuid(char *page, char **start, off_t off, - int count, int *eof, void *data) { return 0; } -static inline int lprocfs_rd_name(char *page, char **start, off_t off, - int count, int *eof, void *data) { return 0; } -static inline int lprocfs_rd_server_uuid(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ return 0; } -static inline int lprocfs_rd_conn_uuid(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ return 0; } -static inline int lprocfs_rd_num_exports(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ return 0; } -static inline int lprocfs_rd_numrefs(char *page, char **start, off_t off, - int count, int *eof, void *data) { return 0; } - -/* Statfs helpers */ -static inline -int lprocfs_rd_blksize(char *page, char **start, off_t off, - int count, int *eof, void *data) { return 0; } -static inline -int lprocfs_rd_kbytestotal(char *page, char **start, off_t off, - int count, int *eof, void *data) { return 0; } -static inline -int lprocfs_rd_kbytesfree(char *page, char **start, off_t off, - int count, int *eof, void *data) { return 0; } -static inline -int lprocfs_rd_kbytesavail(char *page, char **start, off_t off, - int count, int *eof, void *data) { return 0; } -static inline -int lprocfs_rd_filestotal(char *page, char **start, off_t off, - int count, int *eof, void *data) { return 0; } -static inline -int lprocfs_rd_filesfree(char *page, char **start, off_t off, - int count, int *eof, void *data) { return 0; } -static inline -int lprocfs_rd_filegroups(char *page, char **start, off_t off, - int count, int *eof, void *data) { return 0; } -static inline -int lprocfs_counter_read(char *page, char **start, off_t off, - int count, int *eof, void *data) { return 0; } -static inline -int lprocfs_counter_write(struct file *file, const char *buffer, - unsigned long count, void *data) { return 0; } -#endif /* LPROCFS */ +#define kstatfs statfs +#endif #endif /* LPROCFS_SNMP_H */