/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
+ * GPL HEADER START
*
- * This file is part of Lustre, http://www.lustre.org.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * 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 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 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.
+ * 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).
*
- * 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.
+ * 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
*
+ * 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.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
#ifndef _OBD_SUPPORT
#define _OBD_SUPPORT
-#include <libcfs/kp30.h>
+#include <libcfs/libcfs.h>
+#include <lvfs.h>
+#include <lprocfs_status.h>
+
+#if defined(__linux__)
+#include <linux/obd_support.h>
+#elif defined(__APPLE__)
+#include <darwin/obd_support.h>
+#elif defined(__WINNT__)
+#include <winnt/obd_support.h>
+#else
+#error Unsupported operating system.
+#endif
/* global variables */
-extern atomic_t obd_memory;
-extern int obd_memmax;
-extern unsigned int obd_fail_loc;
+extern struct lprocfs_stats *obd_memory;
+enum {
+ OBD_MEMORY_STAT = 0,
+ OBD_MEMORY_PAGES_STAT = 1,
+ OBD_STATS_NUM,
+};
+
extern unsigned int obd_debug_peer_on_timeout;
extern unsigned int obd_dump_on_timeout;
extern unsigned int obd_dump_on_eviction;
+/* obd_timeout should only be used for recovery, not for
+ networking / disk / timings affected by load (use Adaptive Timeouts) */
extern unsigned int obd_timeout; /* seconds */
-#define PING_INTERVAL max(obd_timeout / 4, 1U)
-#define RECONNECT_INTERVAL max(obd_timeout / 10, 10U)
-extern unsigned int ldlm_timeout;
-extern unsigned int obd_health_check_timeout;
+extern unsigned int ldlm_timeout; /* seconds */
+extern unsigned int at_min;
+extern unsigned int at_max;
+extern unsigned int at_history;
+extern int at_early_margin;
+extern int at_extra;
extern unsigned int obd_sync_filter;
extern unsigned int obd_max_dirty_pages;
-extern atomic_t obd_dirty_pages;
-extern cfs_waitq_t obd_race_waitq;
-extern int obd_race_state;
+extern cfs_atomic_t obd_dirty_pages;
+extern cfs_atomic_t obd_dirty_transit_pages;
+extern unsigned int obd_alloc_fail_rate;
+
+/* lvfs.c */
+int obd_alloc_fail(const void *ptr, const char *name, const char *type,
+ size_t size, const char *file, int line);
+
+/* Some hash init argument constants */
+#define HASH_POOLS_BKT_BITS 3
+#define HASH_POOLS_CUR_BITS 3
+#define HASH_POOLS_MAX_BITS 7
+#define HASH_UUID_BKT_BITS 5
+#define HASH_UUID_CUR_BITS 7
+#define HASH_UUID_MAX_BITS 12
+#define HASH_NID_BKT_BITS 5
+#define HASH_NID_CUR_BITS 7
+#define HASH_NID_MAX_BITS 12
+#define HASH_NID_STATS_BKT_BITS 5
+#define HASH_NID_STATS_CUR_BITS 7
+#define HASH_NID_STATS_MAX_BITS 12
+#define HASH_LQS_BKT_BITS 5
+#define HASH_LQS_CUR_BITS 7
+#define HASH_LQS_MAX_BITS 12
+#define HASH_CONN_BKT_BITS 5
+#define HASH_CONN_CUR_BITS 5
+#define HASH_CONN_MAX_BITS 15
+#define HASH_EXP_LOCK_BKT_BITS 5
+#define HASH_EXP_LOCK_CUR_BITS 7
+#define HASH_EXP_LOCK_MAX_BITS 16
+#define HASH_CL_ENV_BKT_BITS 5
+#define HASH_CL_ENV_BITS 10
/* Timeout definitions */
-#define LDLM_TIMEOUT_DEFAULT 20
-#define OBD_TIMEOUT_DEFAULT 100
-#define HEALTH_CHECK_COEF 3 / 2
-#define HEALTH_CHECK_TIMEOUT_DEFAULT (OBD_TIMEOUT_DEFAULT * HEALTH_CHECK_COEF)
-#define HEALTH_CHECK_TIMEOUT (obd_timeout * HEALTH_CHECK_COEF)
+#define OBD_TIMEOUT_DEFAULT 100
+#define LDLM_TIMEOUT_DEFAULT 20
+#define MDS_LDLM_TIMEOUT_DEFAULT 6
+/* Time to wait for all clients to reconnect during recovery (hard limit) */
+#define OBD_RECOVERY_TIME_HARD (obd_timeout * 9)
+/* Time to wait for all clients to reconnect during recovery (soft limit) */
+/* Should be very conservative; must catch the first reconnect after reboot */
+#define OBD_RECOVERY_TIME_SOFT (obd_timeout * 3)
+/* Change recovery-small 26b time if you change this */
+#define PING_INTERVAL max(obd_timeout / 4, 1U)
+/* a bit more than maximal journal commit time in seconds */
+#define PING_INTERVAL_SHORT min(PING_INTERVAL, 7U)
+/* Client may skip 1 ping; we must wait at least 2.5. But for multiple
+ * failover targets the client only pings one server at a time, and pings
+ * can be lost on a loaded network. Since eviction has serious consequences,
+ * and there's no urgent need to evict a client just because it's idle, we
+ * should be very conservative here. */
+#define PING_EVICT_TIMEOUT (PING_INTERVAL * 6)
+#define DISK_TIMEOUT 50 /* Beyond this we warn about disk speed */
+#define CONNECTION_SWITCH_MIN 5U /* Connection switching rate limiter */
+ /* Max connect interval for nonresponsive servers; ~50s to avoid building up
+ connect requests in the LND queues, but within obd_timeout so we don't
+ miss the recovery window */
+#define CONNECTION_SWITCH_MAX min(50U, max(CONNECTION_SWITCH_MIN,obd_timeout))
+#define CONNECTION_SWITCH_INC 5 /* Connection timeout backoff */
+#ifndef CRAY_XT3
+/* In general this should be low to have quick detection of a system
+ running on a backup server. (If it's too low, import_select_connection
+ will increase the timeout anyhow.) */
+#define INITIAL_CONNECT_TIMEOUT max(CONNECTION_SWITCH_MIN,obd_timeout/20)
+#else
+/* ...but for very large systems (e.g. CRAY) we need to keep the initial
+ connect t.o. high (bz 10803), because they will nearly ALWAYS be doing the
+ connects for the first time (clients "reboot" after every process, so no
+ chance to generate adaptive timeout data. */
+#define INITIAL_CONNECT_TIMEOUT max(CONNECTION_SWITCH_MIN,obd_timeout/2)
+#endif
+/* The max delay between connects is SWITCH_MAX + SWITCH_INC + INITIAL */
+#define RECONNECT_DELAY_MAX (CONNECTION_SWITCH_MAX + CONNECTION_SWITCH_INC + \
+ INITIAL_CONNECT_TIMEOUT)
+/* The min time a target should wait for clients to reconnect in recovery */
+#define OBD_RECOVERY_TIME_MIN (2*RECONNECT_DELAY_MAX)
+#define OBD_IR_FACTOR_MIN 1
+#define OBD_IR_FACTOR_MAX 10
+#define OBD_IR_FACTOR_DEFAULT (OBD_IR_FACTOR_MAX/2)
+/* default timeout for the MGS to become IR_FULL */
+#define OBD_IR_MGS_TIMEOUT (4*obd_timeout)
+#define LONG_UNLINK 300 /* Unlink should happen before now */
+
+/**
+ * Time interval of shrink, if the client is "idle" more than this interval,
+ * then the ll_grant thread will return the requested grant space to filter
+ */
+#define GRANT_SHRINK_INTERVAL 1200/*20 minutes*/
#define OBD_FAIL_MDS 0x100
#define OBD_FAIL_MDS_HANDLE_UNPACK 0x101
#define OBD_FAIL_MDS_SETXATTR_WRITE 0x134
#define OBD_FAIL_MDS_FS_SETUP 0x135
#define OBD_FAIL_MDS_RESEND 0x136
-#define OBD_FAIL_MDS_IS_SUBDIR_NET 0x137
-#define OBD_FAIL_MDS_IS_SUBDIR_PACK 0x138
-#define OBD_FAIL_MDS_SET_INFO_NET 0x139
-#define OBD_FAIL_MDS_WRITEPAGE_NET 0x13a
-#define OBD_FAIL_MDS_WRITEPAGE_PACK 0x13b
-#define OBD_FAIL_MDS_LLOG_CREATE_FAILED 0x13c
-#define OBD_FAIL_MDS_OSC_PRECREATE 0x13d
+#define OBD_FAIL_MDS_LLOG_CREATE_FAILED 0x137
+#define OBD_FAIL_MDS_LOV_SYNC_RACE 0x138
+#define OBD_FAIL_MDS_OSC_PRECREATE 0x139
+#define OBD_FAIL_MDS_LLOG_SYNC_TIMEOUT 0x13a
+#define OBD_FAIL_MDS_CLOSE_NET_REP 0x13b
+#define OBD_FAIL_MDS_BLOCK_QUOTA_REQ 0x13c
+#define OBD_FAIL_MDS_DROP_QUOTA_REQ 0x13d
+#define OBD_FAIL_MDS_REMOVE_COMMON_EA 0x13e
+#define OBD_FAIL_MDS_ALLOW_COMMON_EA_SETTING 0x13f
+#define OBD_FAIL_MDS_FAIL_LOV_LOG_ADD 0x140
+#define OBD_FAIL_MDS_LOV_PREP_CREATE 0x141
+#define OBD_FAIL_MDS_REINT_DELAY 0x142
+#define OBD_FAIL_MDS_READLINK_EPROTO 0x143
+#define OBD_FAIL_MDS_OPEN_WAIT_CREATE 0x144
+#define OBD_FAIL_MDS_PDO_LOCK 0x145
+#define OBD_FAIL_MDS_PDO_LOCK2 0x146
+#define OBD_FAIL_MDS_OSC_CREATE_FAIL 0x147
+
+/* CMD */
+#define OBD_FAIL_MDS_IS_SUBDIR_NET 0x180
+#define OBD_FAIL_MDS_IS_SUBDIR_PACK 0x181
+#define OBD_FAIL_MDS_SET_INFO_NET 0x182
+#define OBD_FAIL_MDS_WRITEPAGE_NET 0x183
+#define OBD_FAIL_MDS_WRITEPAGE_PACK 0x184
+#define OBD_FAIL_MDS_RECOVERY_ACCEPTS_GAPS 0x185
+#define OBD_FAIL_MDS_GET_INFO_NET 0x186
#define OBD_FAIL_OST 0x200
#define OBD_FAIL_OST_CONNECT_NET 0x201
#define OBD_FAIL_OST_BRW_READ_BULK 0x20f
#define OBD_FAIL_OST_SYNC_NET 0x210
#define OBD_FAIL_OST_ALL_REPLY_NET 0x211
-#define OBD_FAIL_OST_ALL_REQUESTS_NET 0x212
+#define OBD_FAIL_OST_ALL_REQUEST_NET 0x212
#define OBD_FAIL_OST_LDLM_REPLY_NET 0x213
#define OBD_FAIL_OST_BRW_PAUSE_BULK 0x214
#define OBD_FAIL_OST_ENOSPC 0x215
#define OBD_FAIL_OST_DROP_REQ 0x21d
#define OBD_FAIL_OST_SETATTR_CREDITS 0x21e
#define OBD_FAIL_OST_HOLD_WRITE_RPC 0x21f
+#define OBD_FAIL_OST_BRW_WRITE_BULK2 0x220
+#define OBD_FAIL_OST_LLOG_RECOVERY_TIMEOUT 0x221
+#define OBD_FAIL_OST_CANCEL_COOKIE_TIMEOUT 0x222
+#define OBD_FAIL_OST_PAUSE_CREATE 0x223
+#define OBD_FAIL_OST_BRW_PAUSE_PACK 0x224
+#define OBD_FAIL_OST_CONNECT_NET2 0x225
+#define OBD_FAIL_OST_NOMEM 0x226
+#define OBD_FAIL_OST_BRW_PAUSE_BULK2 0x227
+#define OBD_FAIL_OST_MAPBLK_ENOSPC 0x228
+#define OBD_FAIL_OST_ENOINO 0x229
+#define OBD_FAIL_OST_DQACQ_NET 0x230
#define OBD_FAIL_LDLM 0x300
#define OBD_FAIL_LDLM_NAMESPACE_NEW 0x301
#define OBD_FAIL_LDLM_GLIMPSE 0x30f
#define OBD_FAIL_LDLM_CANCEL_RACE 0x310
#define OBD_FAIL_LDLM_CANCEL_EVICT_RACE 0x311
+#define OBD_FAIL_LDLM_PAUSE_CANCEL 0x312
+#define OBD_FAIL_LDLM_CLOSE_THREAD 0x313
+#define OBD_FAIL_LDLM_CANCEL_BL_CB_RACE 0x314
+#define OBD_FAIL_LDLM_CP_CB_WAIT 0x315
+#define OBD_FAIL_LDLM_OST_FAIL_RACE 0x316
+#define OBD_FAIL_LDLM_INTR_CP_AST 0x317
+#define OBD_FAIL_LDLM_CP_BL_RACE 0x318
+#define OBD_FAIL_LDLM_NEW_LOCK 0x319
+#define OBD_FAIL_LDLM_AGL_DELAY 0x31a
+#define OBD_FAIL_LDLM_AGL_NOLOCK 0x31b
+
+/* LOCKLESS IO */
+#define OBD_FAIL_LDLM_SET_CONTENTION 0x385
#define OBD_FAIL_OSC 0x400
#define OBD_FAIL_OSC_BRW_READ_BULK 0x401
#define OBD_FAIL_OSC_SHUTDOWN 0x407
#define OBD_FAIL_OSC_CHECKSUM_RECEIVE 0x408
#define OBD_FAIL_OSC_CHECKSUM_SEND 0x409
+#define OBD_FAIL_OSC_BRW_PREP_REQ2 0x40a
+#define OBD_FAIL_OSC_CONNECT_CKSUM 0x40b
+#define OBD_FAIL_OSC_CKSUM_ADLER_ONLY 0x40c
+#define OBD_FAIL_OSC_DIO_PAUSE 0x40d
+#define OBD_FAIL_OSC_OBJECT_CONTENTION 0x40e
+#define OBD_FAIL_OSC_CP_CANCEL_RACE 0x40f
+#define OBD_FAIL_OSC_CP_ENQ_RACE 0x410
+#define OBD_FAIL_OSC_NO_GRANT 0x411
#define OBD_FAIL_PTLRPC 0x500
#define OBD_FAIL_PTLRPC_ACK 0x501
#define OBD_FAIL_PTLRPC_DROP_RPC 0x505
#define OBD_FAIL_PTLRPC_DELAY_SEND 0x506
#define OBD_FAIL_PTLRPC_DELAY_RECOV 0x507
+#define OBD_FAIL_PTLRPC_CLIENT_BULK_CB 0x508
+#define OBD_FAIL_PTLRPC_PAUSE_REQ 0x50a
+#define OBD_FAIL_PTLRPC_PAUSE_REP 0x50c
+#define OBD_FAIL_PTLRPC_IMP_DEACTIVE 0x50d
+#define OBD_FAIL_PTLRPC_DUMP_LOG 0x50e
+#define OBD_FAIL_PTLRPC_LONG_REPL_UNLINK 0x50f
+#define OBD_FAIL_PTLRPC_LONG_BULK_UNLINK 0x510
+#define OBD_FAIL_PTLRPC_HPREQ_TIMEOUT 0x511
+#define OBD_FAIL_PTLRPC_HPREQ_NOTIMEOUT 0x512
+#define OBD_FAIL_PTLRPC_DROP_REQ_OPC 0x513
+#define OBD_FAIL_PTLRPC_FINISH_REPLAY 0x514
+#define OBD_FAIL_PTLRPC_CLIENT_BULK_CB2 0x515
#define OBD_FAIL_OBD_PING_NET 0x600
#define OBD_FAIL_OBD_LOG_CANCEL_NET 0x601
#define OBD_FAIL_OBD_LOGD_NET 0x602
#define OBD_FAIL_OBD_QC_CALLBACK_NET 0x603
#define OBD_FAIL_OBD_DQACQ 0x604
+#define OBD_FAIL_OBD_LLOG_SETUP 0x605
+#define OBD_FAIL_OBD_LOG_CANCEL_REP 0x606
#define OBD_FAIL_TGT_REPLY_NET 0x700
#define OBD_FAIL_TGT_CONN_RACE 0x701
#define OBD_FAIL_TGT_DELAY_CONNECT 0x703
#define OBD_FAIL_TGT_DELAY_RECONNECT 0x704
#define OBD_FAIL_TGT_DELAY_PRECREATE 0x705
+#define OBD_FAIL_TGT_TOOMANY_THREADS 0x706
+#define OBD_FAIL_TGT_REPLAY_DROP 0x707
+#define OBD_FAIL_TGT_FAKE_EXP 0x708
+#define OBD_FAIL_TGT_REPLAY_DELAY 0x709
+#define OBD_FAIL_TGT_LAST_REPLAY 0x710
+#define OBD_FAIL_TGT_CLIENT_ADD 0x711
+#define OBD_FAIL_TGT_RCVG_FLAG 0x712
#define OBD_FAIL_MDC_REVALIDATE_PAUSE 0x800
#define OBD_FAIL_MDC_ENQUEUE_PAUSE 0x801
+#define OBD_FAIL_MDC_OLD_EXT_FLAGS 0x802
+#define OBD_FAIL_MDC_GETATTR_ENQUEUE 0x803
#define OBD_FAIL_MGS 0x900
#define OBD_FAIL_MGS_ALL_REQUEST_NET 0x901
#define OBD_FAIL_MGS_ALL_REPLY_NET 0x902
-#define OBD_FAIL_MGC_PROCESS_LOG 0x903
-#define OBD_FAIL_MGS_SLOW_REQUEST_NET 0x904
-#define OBD_FAIL_MGS_SLOW_TARGET_REG 0x905
+#define OBD_FAIL_MGC_PAUSE_PROCESS_LOG 0x903
+#define OBD_FAIL_MGS_PAUSE_REQ 0x904
+#define OBD_FAIL_MGS_PAUSE_TARGET_REG 0x905
-#define OBD_FAIL_QUOTA_QD_COUNT_32BIT 0xa00
+#define OBD_FAIL_QUOTA_RET_QDATA 0xA02
+#define OBD_FAIL_QUOTA_DELAY_REL 0xA03
+#define OBD_FAIL_QUOTA_DELAY_SD 0xA04
-#define OBD_FAIL_LPROC_REMOVE 0xb00
+#define OBD_FAIL_LPROC_REMOVE 0xB00
+
+#define OBD_FAIL_GENERAL_ALLOC 0xC00
#define OBD_FAIL_SEQ 0x1000
#define OBD_FAIL_SEQ_QUERY_NET 0x1001
#define OBD_FAIL_SEC_CTX_INIT_NET 0x1201
#define OBD_FAIL_SEC_CTX_INIT_CONT_NET 0x1202
#define OBD_FAIL_SEC_CTX_FINI_NET 0x1203
+#define OBD_FAIL_SEC_CTX_HDL_PAUSE 0x1204
+
+#define OBD_FAIL_LLOG 0x1300
+#define OBD_FAIL_LLOG_ORIGIN_CONNECT_NET 0x1301
+#define OBD_FAIL_LLOG_ORIGIN_HANDLE_CREATE_NET 0x1302
+#define OBD_FAIL_LLOG_ORIGIN_HANDLE_DESTROY_NET 0x1303
+#define OBD_FAIL_LLOG_ORIGIN_HANDLE_READ_HEADER_NET 0x1304
+#define OBD_FAIL_LLOG_ORIGIN_HANDLE_NEXT_BLOCK_NET 0x1305
+#define OBD_FAIL_LLOG_ORIGIN_HANDLE_PREV_BLOCK_NET 0x1306
+#define OBD_FAIL_LLOG_ORIGIN_HANDLE_WRITE_REC_NET 0x1307
+#define OBD_FAIL_LLOG_ORIGIN_HANDLE_CLOSE_NET 0x1308
+#define OBD_FAIL_LLOG_CATINFO_NET 0x1309
+#define OBD_FAIL_MDS_SYNC_CAPA_SL 0x1310
+#define OBD_FAIL_SEQ_ALLOC 0x1311
+
+#define OBD_FAIL_LLITE 0x1400
+#define OBD_FAIL_LLITE_FAULT_TRUNC_RACE 0x1401
+
+/* Assign references to moved code to reduce code changes */
+#define OBD_FAIL_PRECHECK(id) CFS_FAIL_PRECHECK(id)
+#define OBD_FAIL_CHECK(id) CFS_FAIL_CHECK(id)
+#define OBD_FAIL_CHECK_VALUE(id, value) CFS_FAIL_CHECK_VALUE(id, value)
+#define OBD_FAIL_CHECK_ORSET(id, value) CFS_FAIL_CHECK_ORSET(id, value)
+#define OBD_FAIL_CHECK_RESET(id, value) CFS_FAIL_CHECK_RESET(id, value)
+#define OBD_FAIL_RETURN(id, ret) CFS_FAIL_RETURN(id, ret)
+#define OBD_FAIL_TIMEOUT(id, secs) CFS_FAIL_TIMEOUT(id, secs)
+#define OBD_FAIL_TIMEOUT_MS(id, ms) CFS_FAIL_TIMEOUT_MS(id, ms)
+#define OBD_FAIL_TIMEOUT_ORSET(id, value, secs) CFS_FAIL_TIMEOUT_ORSET(id, value, secs)
+#define OBD_RACE(id) CFS_RACE(id)
+#define OBD_FAIL_ONCE CFS_FAIL_ONCE
+#define OBD_FAILED CFS_FAILED
+
+extern cfs_atomic_t libcfs_kmemory;
+
+#ifdef LPROCFS
+#define obd_memory_add(size) \
+ lprocfs_counter_add(obd_memory, OBD_MEMORY_STAT, (long)(size))
+#define obd_memory_sub(size) \
+ lprocfs_counter_sub(obd_memory, OBD_MEMORY_STAT, (long)(size))
+#define obd_memory_sum() \
+ lprocfs_stats_collector(obd_memory, OBD_MEMORY_STAT, \
+ LPROCFS_FIELDS_FLAGS_SUM)
+#define obd_pages_add(order) \
+ lprocfs_counter_add(obd_memory, OBD_MEMORY_PAGES_STAT, \
+ (long)(1 << (order)))
+#define obd_pages_sub(order) \
+ lprocfs_counter_sub(obd_memory, OBD_MEMORY_PAGES_STAT, \
+ (long)(1 << (order)))
+#define obd_pages_sum() \
+ lprocfs_stats_collector(obd_memory, OBD_MEMORY_PAGES_STAT, \
+ LPROCFS_FIELDS_FLAGS_SUM)
+
+extern void obd_update_maxusage(void);
+extern __u64 obd_memory_max(void);
+extern __u64 obd_pages_max(void);
-/* preparation for a more advanced failure testbed (not functional yet) */
-#define OBD_FAIL_MASK_SYS 0x0000FF00
-#define OBD_FAIL_MASK_LOC (0x000000FF | OBD_FAIL_MASK_SYS)
-#define OBD_FAIL_ONCE 0x80000000
-#define OBD_FAILED 0x40000000
-
-#define OBD_FAIL_CHECK(id) (((obd_fail_loc & OBD_FAIL_MASK_LOC) == \
- ((id) & OBD_FAIL_MASK_LOC)) && \
- ((obd_fail_loc & (OBD_FAILED | OBD_FAIL_ONCE))!= \
- (OBD_FAILED | OBD_FAIL_ONCE)))
-
-#define OBD_FAIL_CHECK_ONCE(id) \
-({ int _ret_ = 0; \
- if (unlikely(OBD_FAIL_CHECK(id))) { \
- CERROR("*** obd_fail_loc=0x%x ***\n", id); \
- obd_fail_loc |= OBD_FAILED; \
- if ((id) & OBD_FAIL_ONCE) \
- obd_fail_loc |= OBD_FAIL_ONCE; \
- _ret_ = 1; \
- } \
- _ret_; \
-})
-
-#define OBD_FAIL_RETURN(id, ret) \
-do { \
- if (unlikely(OBD_FAIL_CHECK_ONCE(id))) { \
- RETURN(ret); \
- } \
-} while(0)
-
-#define OBD_FAIL_TIMEOUT(id, secs) \
-do { \
- if (unlikely(OBD_FAIL_CHECK_ONCE(id))) { \
- CERROR("obd_fail_timeout id %x sleeping for %d secs\n", \
- (id), (secs)); \
- set_current_state(TASK_UNINTERRUPTIBLE); \
- cfs_schedule_timeout(CFS_TASK_UNINT, \
- cfs_time_seconds(secs)); \
- set_current_state(TASK_RUNNING); \
- CERROR("obd_fail_timeout id %x awake\n", (id)); \
- } \
-} while(0)
-
-#ifdef __KERNEL__
-/* The idea here is to synchronise two threads to force a race. The
- * first thread that calls this with a matching fail_loc is put to
- * sleep. The next thread that calls with the same fail_loc wakes up
- * the first and continues. */
-#define OBD_RACE(id) \
-do { \
- if (unlikely(OBD_FAIL_CHECK_ONCE(id))) { \
- obd_race_state = 0; \
- CERROR("obd_race id %x sleeping\n", (id)); \
- OBD_SLEEP_ON(obd_race_waitq, obd_race_state != 0); \
- CERROR("obd_fail_race id %x awake\n", (id)); \
- } else if ((obd_fail_loc & OBD_FAIL_MASK_LOC) == \
- ((id) & OBD_FAIL_MASK_LOC)) { \
- CERROR("obd_fail_race id %x waking\n", (id)); \
- obd_race_state = 1; \
- wake_up(&obd_race_waitq); \
- } \
-} while(0)
#else
-/* sigh. an expedient fix until OBD_RACE is fixed up */
-#define OBD_RACE(foo) do {} while(0)
-#endif
-
-#define fixme() CDEBUG(D_OTHER, "FIXME\n");
-extern atomic_t libcfs_kmemory;
+extern __u64 obd_alloc;
+extern __u64 obd_pages;
-#if defined (CONFIG_DEBUG_MEMORY) && defined(__KERNEL__)
-
-#define OBD_MT_WRONG_SIZE (1 << 0)
-#define OBD_MT_ALREADY_FREED (1 << 1)
-#define OBD_MT_LOC_LEN 128
-
-struct obd_mem_track {
- struct hlist_node mt_hash;
- char mt_loc[OBD_MT_LOC_LEN];
- int mt_flags;
- void *mt_ptr;
- int mt_size;
-};
+extern __u64 obd_max_alloc;
+extern __u64 obd_max_pages;
-void lvfs_memdbg_show(void);
-void lvfs_memdbg_insert(struct obd_mem_track *mt);
-void lvfs_memdbg_remove(struct obd_mem_track *mt);
-struct obd_mem_track *lvfs_memdbg_find(void *ptr);
-
-int lvfs_memdbg_check_insert(struct obd_mem_track *mt);
-struct obd_mem_track *lvfs_memdbg_check_remove(void *ptr);
-
-static inline struct obd_mem_track *
-__new_mem_track(void *ptr, int size,
- char *file, int line)
+static inline void obd_memory_add(long size)
{
- struct obd_mem_track *mt;
-
- mt = kmalloc(sizeof(*mt), GFP_KERNEL);
- if (unlikely(!mt))
- return NULL;
-
- snprintf(mt->mt_loc, sizeof(mt->mt_loc) - 1,
- "%s:%d", file, line);
-
- mt->mt_size = size;
- mt->mt_ptr = ptr;
- mt->mt_flags = 0;
- return mt;
+ obd_alloc += size;
+ if (obd_alloc > obd_max_alloc)
+ obd_max_alloc = obd_alloc;
}
-static inline void
-__free_mem_track(struct obd_mem_track *mt)
+static inline void obd_memory_sub(long size)
{
- kfree(mt);
+ obd_alloc -= size;
}
-static inline int
-__get_mem_track(void *ptr, int size,
- char *file, int line)
+static inline void obd_pages_add(int order)
{
- struct obd_mem_track *mt;
-
- mt = __new_mem_track(ptr, size, file, line);
- if (unlikely(!mt)) {
- CWARN("Can't allocate new memory track\n");
- return 0;
- }
-
- if (!lvfs_memdbg_check_insert(mt))
- __free_mem_track(mt);
-
- return 1;
+ obd_pages += 1<< order;
+ if (obd_pages > obd_max_pages)
+ obd_max_pages = obd_pages;
}
-static inline int
-__put_mem_track(void *ptr, int size,
- char *file, int line)
+static inline void obd_pages_sub(int order)
{
- struct obd_mem_track *mt;
-
- if (unlikely(!(mt = lvfs_memdbg_check_remove(ptr)))) {
- CWARN("Ptr 0x%p is not allocated. Attempt to free "
- "not allocated memory at %s:%d\n", ptr,
- file, line);
- LBUG();
- return 0;
- } else {
- if (unlikely(mt->mt_size != size)) {
- if (!(mt->mt_flags & OBD_MT_ALREADY_FREED)) {
- mt->mt_flags |= (OBD_MT_WRONG_SIZE |
- OBD_MT_ALREADY_FREED);
-
- CWARN("Freeing memory chunk (at 0x%p) of "
- "different size than allocated "
- "(%d != %d) at %s:%d, allocated at %s\n",
- ptr, mt->mt_size, size, file, line,
- mt->mt_loc);
- }
- } else {
- __free_mem_track(mt);
- }
- return 1;
- }
+ obd_pages -= 1<< order;
}
-#define get_mem_track(ptr, size, file, line) \
- __get_mem_track((ptr), (size), (file), (line))
-
-#define put_mem_track(ptr, size, file, line) \
- __put_mem_track((ptr), (size), (file), (line))
+#define obd_memory_sum() (obd_alloc)
+#define obd_pages_sum() (obd_pages)
-#else /* !CONFIG_DEBUG_MEMORY */
+#define obd_memory_max() (obd_max_alloc)
+#define obd_pages_max() (obd_max_pages)
-#define get_mem_track(ptr, size, file, line) \
- do {} while (0)
-
-#define put_mem_track(ptr, size, file, line) \
- do {} while (0)
-#endif /* !CONFIG_DEBUG_MEMORY */
+#endif
#define OBD_DEBUG_MEMUSAGE (1)
#if OBD_DEBUG_MEMUSAGE
#define OBD_ALLOC_POST(ptr, size, name) \
- atomic_add(size, &obd_memory); \
- if (atomic_read(&obd_memory) > obd_memmax) \
- obd_memmax = atomic_read(&obd_memory); \
- get_mem_track((ptr), (size), __FILE__, __LINE__); \
- CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p (tot %d)\n", \
- (int)(size), ptr, atomic_read(&obd_memory))
+ obd_memory_add(size); \
+ CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n", \
+ (int)(size), ptr)
#define OBD_FREE_PRE(ptr, size, name) \
LASSERT(ptr); \
- put_mem_track((ptr), (size), __FILE__, __LINE__); \
- atomic_sub(size, &obd_memory); \
- CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p (tot %d).\n", \
- (int)(size), ptr, atomic_read(&obd_memory)); \
+ obd_memory_sub(size); \
+ CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n", \
+ (int)(size), ptr); \
POISON(ptr, 0x5a, size)
#else /* !OBD_DEBUG_MEMUSAGE */
#endif /* !OBD_DEBUG_MEMUSAGE */
+#ifdef RANDOM_FAIL_ALLOC
+#define HAS_FAIL_ALLOC_FLAG OBD_FAIL_CHECK(OBD_FAIL_GENERAL_ALLOC)
+#else
+#define HAS_FAIL_ALLOC_FLAG 0
+#endif
+
+#define OBD_ALLOC_FAIL_BITS 24
+#define OBD_ALLOC_FAIL_MASK ((1 << OBD_ALLOC_FAIL_BITS) - 1)
+#define OBD_ALLOC_FAIL_MULT (OBD_ALLOC_FAIL_MASK / 100)
+
#if defined(LUSTRE_UTILS) /* this version is for utils only */
#define OBD_ALLOC_GFP(ptr, size, gfp_mask) \
do { \
} \
} while (0)
#else /* this version is for the kernel and liblustre */
+#define OBD_FREE_RTN0(ptr) \
+({ \
+ cfs_free(ptr); \
+ (ptr) = NULL; \
+ 0; \
+})
#define OBD_ALLOC_GFP(ptr, size, gfp_mask) \
do { \
(ptr) = cfs_alloc(size, (gfp_mask)); \
- if (unlikely((ptr) == NULL)) { \
- CERROR("kmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n", \
- (int)(size), __FILE__, __LINE__); \
- CERROR("%d total bytes allocated by Lustre, %d by Portals\n", \
- atomic_read(&obd_memory), atomic_read(&libcfs_kmemory));\
- } else { \
+ if (likely((ptr) != NULL && \
+ (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 || \
+ !obd_alloc_fail(ptr, #ptr, "km", size, \
+ __FILE__, __LINE__) || \
+ OBD_FREE_RTN0(ptr)))){ \
memset(ptr, 0, size); \
OBD_ALLOC_POST(ptr, size, "kmalloced"); \
} \
do { \
(ptr) = cfs_alloc_large(size); \
if (unlikely((ptr) == NULL)) { \
- CERROR("vmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n", \
- (int)(size), __FILE__, __LINE__); \
- CERROR("%d total bytes allocated by Lustre, %d by Portals\n", \
- atomic_read(&obd_memory), atomic_read(&libcfs_kmemory));\
+ CERROR("vmalloc of '" #ptr "' (%d bytes) failed\n", \
+ (int)(size)); \
+ CERROR(LPU64" total bytes allocated by Lustre, %d by LNET\n", \
+ obd_memory_sum(), cfs_atomic_read(&libcfs_kmemory)); \
} else { \
memset(ptr, 0, size); \
OBD_ALLOC_POST(ptr, size, "vmalloced"); \
} while(0)
#endif
+#ifdef __KERNEL__
+
+/* Allocations above this size are considered too big and could not be done
+ * atomically.
+ *
+ * Be very careful when changing this value, especially when decreasing it,
+ * since vmalloc in Linux doesn't perform well on multi-cores system, calling
+ * vmalloc in critical path would hurt peformance badly. See LU-66.
+ */
+#define OBD_ALLOC_BIG (4 * CFS_PAGE_SIZE)
+
+#define OBD_ALLOC_LARGE(ptr, size) \
+do { \
+ if (size > OBD_ALLOC_BIG) \
+ OBD_VMALLOC(ptr, size); \
+ else \
+ OBD_ALLOC(ptr, size); \
+} while (0)
+
+#define OBD_FREE_LARGE(ptr, size) \
+do { \
+ if (size > OBD_ALLOC_BIG) \
+ OBD_VFREE(ptr, size); \
+ else \
+ OBD_FREE(ptr, size); \
+} while (0)
+#else
+#define OBD_ALLOC_LARGE(ptr, size) OBD_ALLOC(ptr, size)
+#define OBD_FREE_LARGE(ptr, size) OBD_FREE(ptr,size)
+#endif
+
#ifdef CONFIG_DEBUG_SLAB
#define POISON(ptr, c, s) do {} while (0)
#define POISON_PTR(ptr) ((void)0)
/* we memset() the slab object to 0 when allocation succeeds, so DO NOT
* HAVE A CTOR THAT DOES ANYTHING. its work will be cleared here. we'd
* love to assert on that, but slab.c keeps kmem_cache_s all to itself. */
+#define OBD_SLAB_FREE_RTN0(ptr, slab) \
+({ \
+ cfs_mem_cache_free((slab), (ptr)); \
+ (ptr) = NULL; \
+ 0; \
+})
#define OBD_SLAB_ALLOC(ptr, slab, type, size) \
do { \
- LASSERT(!in_interrupt()); \
+ LASSERT(ergo(type != CFS_ALLOC_ATOMIC, !cfs_in_interrupt())); \
(ptr) = cfs_mem_cache_alloc(slab, (type)); \
- if (unlikely((ptr) == NULL)) { \
- CERROR("slab-alloc of '"#ptr"' (%d bytes) failed at %s:%d\n", \
- (int)(size), __FILE__, __LINE__); \
- CERROR("%d total bytes allocated by Lustre, %d by Portals\n", \
- atomic_read(&obd_memory), atomic_read(&libcfs_kmemory));\
- } else { \
+ if (likely((ptr) != NULL && \
+ (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 || \
+ !obd_alloc_fail(ptr, #ptr, "slab-", size, \
+ __FILE__, __LINE__) || \
+ OBD_SLAB_FREE_RTN0(ptr, slab)))) { \
memset(ptr, 0, size); \
OBD_ALLOC_POST(ptr, size, "slab-alloced"); \
} \
OBD_SLAB_ALLOC((ptr), (slab), CFS_ALLOC_STD, sizeof *(ptr))
#define OBD_SLAB_FREE_PTR(ptr, slab) \
OBD_SLAB_FREE((ptr), (slab), sizeof *(ptr))
+#define OBD_SLAB_ALLOC_PTR_GFP(ptr, slab, gfp) \
+ OBD_SLAB_ALLOC((ptr), (slab), (gfp), sizeof *(ptr))
-#define KEY_IS(str) (keylen >= strlen(str) && strcmp(key, str) == 0)
+#define KEY_IS(str) \
+ (keylen >= (sizeof(str)-1) && memcmp(key, str, (sizeof(str)-1)) == 0)
-#if defined(__linux__)
-#include <linux/obd_support.h>
-#elif defined(__APPLE__)
-#include <darwin/obd_support.h>
-#elif defined(__WINNT__)
-#include <winnt/obd_support.h>
-#else
-#error Unsupported operating system.
-#endif
+/* Wrapper for contiguous page frame allocation */
+#define OBD_PAGE_ALLOC(ptr, gfp_mask) \
+do { \
+ (ptr) = cfs_alloc_page(gfp_mask); \
+ if (unlikely((ptr) == NULL)) { \
+ CERROR("alloc_pages of '" #ptr "' %d page(s) / "LPU64" bytes "\
+ "failed\n", (int)1, \
+ (__u64)(1 << CFS_PAGE_SHIFT)); \
+ CERROR(LPU64" total bytes and "LPU64" total pages " \
+ "("LPU64" bytes) allocated by Lustre, " \
+ "%d total bytes by LNET\n", \
+ obd_memory_sum(), \
+ obd_pages_sum() << CFS_PAGE_SHIFT, \
+ obd_pages_sum(), \
+ cfs_atomic_read(&libcfs_kmemory)); \
+ } else { \
+ obd_pages_add(0); \
+ CDEBUG(D_MALLOC, "alloc_pages '" #ptr "': %d page(s) / " \
+ LPU64" bytes at %p.\n", \
+ (int)1, \
+ (__u64)(1 << CFS_PAGE_SHIFT), ptr); \
+ } \
+} while (0)
+
+#define OBD_PAGE_FREE(ptr) \
+do { \
+ LASSERT(ptr); \
+ obd_pages_sub(0); \
+ CDEBUG(D_MALLOC, "free_pages '" #ptr "': %d page(s) / "LPU64" bytes " \
+ "at %p.\n", \
+ (int)1, (__u64)(1 << CFS_PAGE_SHIFT), \
+ ptr); \
+ cfs_free_page(ptr); \
+ (ptr) = (void *)0xdeadbeef; \
+} while (0)
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff