/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * * GPL HEADER START * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * 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. * * 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 * 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 2008 Sun Microsystems, Inc. All rights reserved * Use is subject to license terms. */ /* * 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 #include #include #if defined(__linux__) #include #elif defined(__APPLE__) #include #elif defined(__WINNT__) #include #else #error Unsupported operating system. #endif /* global variables */ extern struct lprocfs_stats *obd_memory; enum { OBD_MEMORY_STAT = 0, OBD_MEMORY_PAGES_STAT = 1, OBD_STATS_NUM, }; enum { OBD_FAIL_LOC_NOSET = 0, OBD_FAIL_LOC_ORSET = 1, OBD_FAIL_LOC_RESET = 2 }; extern unsigned long obd_fail_loc; extern unsigned int obd_fail_val; 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 */ 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 cfs_atomic_t obd_dirty_pages; extern cfs_atomic_t obd_dirty_transit_pages; extern cfs_waitq_t obd_race_waitq; extern int obd_race_state; extern unsigned int obd_alloc_fail_rate; int __obd_fail_check_set(__u32 id, __u32 value, int set); int __obd_fail_timeout_set(__u32 id, __u32 value, int ms, int set); /* 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_CUR_BITS 3 #define HASH_POOLS_MAX_BITS 7 #define HASH_UUID_CUR_BITS 7 #define HASH_UUID_MAX_BITS 12 #define HASH_NID_CUR_BITS 7 #define HASH_NID_MAX_BITS 12 #define HASH_NID_STATS_CUR_BITS 7 #define HASH_NID_STATS_MAX_BITS 12 #define HASH_LQS_CUR_BITS 7 #define HASH_LQS_MAX_BITS 12 #define HASH_CONN_CUR_BITS 5 #define HASH_CONN_MAX_BITS 15 #define HASH_EXP_LOCK_CUR_BITS 7 #define HASH_EXP_LOCK_MAX_BITS 16 /* Timeout definitions */ #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 */ /* Should be very conservative; must catch the first reconnect after reboot */ #define OBD_RECOVERY_FACTOR (3) /* times obd_timeout */ /* Change recovery-small 26b time if you change this */ #define PING_INTERVAL max(obd_timeout / 4, 1U) /* 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) #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_GETATTR_NET 0x102 #define OBD_FAIL_MDS_GETATTR_PACK 0x103 #define OBD_FAIL_MDS_READPAGE_NET 0x104 #define OBD_FAIL_MDS_READPAGE_PACK 0x105 #define OBD_FAIL_MDS_SENDPAGE 0x106 #define OBD_FAIL_MDS_REINT_NET 0x107 #define OBD_FAIL_MDS_REINT_UNPACK 0x108 #define OBD_FAIL_MDS_REINT_SETATTR 0x109 #define OBD_FAIL_MDS_REINT_SETATTR_WRITE 0x10a #define OBD_FAIL_MDS_REINT_CREATE 0x10b #define OBD_FAIL_MDS_REINT_CREATE_WRITE 0x10c #define OBD_FAIL_MDS_REINT_UNLINK 0x10d #define OBD_FAIL_MDS_REINT_UNLINK_WRITE 0x10e #define OBD_FAIL_MDS_REINT_LINK 0x10f #define OBD_FAIL_MDS_REINT_LINK_WRITE 0x110 #define OBD_FAIL_MDS_REINT_RENAME 0x111 #define OBD_FAIL_MDS_REINT_RENAME_WRITE 0x112 #define OBD_FAIL_MDS_OPEN_NET 0x113 #define OBD_FAIL_MDS_OPEN_PACK 0x114 #define OBD_FAIL_MDS_CLOSE_NET 0x115 #define OBD_FAIL_MDS_CLOSE_PACK 0x116 #define OBD_FAIL_MDS_CONNECT_NET 0x117 #define OBD_FAIL_MDS_CONNECT_PACK 0x118 #define OBD_FAIL_MDS_REINT_NET_REP 0x119 #define OBD_FAIL_MDS_DISCONNECT_NET 0x11a #define OBD_FAIL_MDS_GETSTATUS_NET 0x11b #define OBD_FAIL_MDS_GETSTATUS_PACK 0x11c #define OBD_FAIL_MDS_STATFS_PACK 0x11d #define OBD_FAIL_MDS_STATFS_NET 0x11e #define OBD_FAIL_MDS_GETATTR_NAME_NET 0x11f #define OBD_FAIL_MDS_PIN_NET 0x120 #define OBD_FAIL_MDS_UNPIN_NET 0x121 #define OBD_FAIL_MDS_ALL_REPLY_NET 0x122 #define OBD_FAIL_MDS_ALL_REQUEST_NET 0x123 #define OBD_FAIL_MDS_SYNC_NET 0x124 #define OBD_FAIL_MDS_SYNC_PACK 0x125 #define OBD_FAIL_MDS_DONE_WRITING_NET 0x126 #define OBD_FAIL_MDS_DONE_WRITING_PACK 0x127 #define OBD_FAIL_MDS_ALLOC_OBDO 0x128 #define OBD_FAIL_MDS_PAUSE_OPEN 0x129 #define OBD_FAIL_MDS_STATFS_LCW_SLEEP 0x12a #define OBD_FAIL_MDS_OPEN_CREATE 0x12b #define OBD_FAIL_MDS_OST_SETATTR 0x12c #define OBD_FAIL_MDS_QUOTACHECK_NET 0x12d #define OBD_FAIL_MDS_QUOTACTL_NET 0x12e #define OBD_FAIL_MDS_CLIENT_ADD 0x12f #define OBD_FAIL_MDS_GETXATTR_NET 0x130 #define OBD_FAIL_MDS_GETXATTR_PACK 0x131 #define OBD_FAIL_MDS_SETXATTR_NET 0x132 #define OBD_FAIL_MDS_SETXATTR 0x133 #define OBD_FAIL_MDS_SETXATTR_WRITE 0x134 #define OBD_FAIL_MDS_FS_SETUP 0x135 #define OBD_FAIL_MDS_RESEND 0x136 #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_OPEN_WAIT_CREATE 0x143 #define OBD_FAIL_MDS_READLINK_EPROTO 0x144 /* 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_DISCONNECT_NET 0x202 #define OBD_FAIL_OST_GET_INFO_NET 0x203 #define OBD_FAIL_OST_CREATE_NET 0x204 #define OBD_FAIL_OST_DESTROY_NET 0x205 #define OBD_FAIL_OST_GETATTR_NET 0x206 #define OBD_FAIL_OST_SETATTR_NET 0x207 #define OBD_FAIL_OST_OPEN_NET 0x208 #define OBD_FAIL_OST_CLOSE_NET 0x209 #define OBD_FAIL_OST_BRW_NET 0x20a #define OBD_FAIL_OST_PUNCH_NET 0x20b #define OBD_FAIL_OST_STATFS_NET 0x20c #define OBD_FAIL_OST_HANDLE_UNPACK 0x20d #define OBD_FAIL_OST_BRW_WRITE_BULK 0x20e #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_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_EROFS 0x216 #define OBD_FAIL_OST_ENOENT 0x217 #define OBD_FAIL_OST_QUOTACHECK_NET 0x218 #define OBD_FAIL_OST_QUOTACTL_NET 0x219 #define OBD_FAIL_OST_CHECKSUM_RECEIVE 0x21a #define OBD_FAIL_OST_CHECKSUM_SEND 0x21b #define OBD_FAIL_OST_BRW_SIZE 0x21c #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_LDLM 0x300 #define OBD_FAIL_LDLM_NAMESPACE_NEW 0x301 #define OBD_FAIL_LDLM_ENQUEUE 0x302 #define OBD_FAIL_LDLM_CONVERT 0x303 #define OBD_FAIL_LDLM_CANCEL 0x304 #define OBD_FAIL_LDLM_BL_CALLBACK 0x305 #define OBD_FAIL_LDLM_CP_CALLBACK 0x306 #define OBD_FAIL_LDLM_GL_CALLBACK 0x307 #define OBD_FAIL_LDLM_ENQUEUE_EXTENT_ERR 0x308 #define OBD_FAIL_LDLM_ENQUEUE_INTENT_ERR 0x309 #define OBD_FAIL_LDLM_CREATE_RESOURCE 0x30a #define OBD_FAIL_LDLM_ENQUEUE_BLOCKED 0x30b #define OBD_FAIL_LDLM_REPLY 0x30c #define OBD_FAIL_LDLM_RECOV_CLIENTS 0x30d #define OBD_FAIL_LDLM_ENQUEUE_OLD_EXPORT 0x30e #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 /* 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_BRW_WRITE_BULK 0x402 #define OBD_FAIL_OSC_LOCK_BL_AST 0x403 #define OBD_FAIL_OSC_LOCK_CP_AST 0x404 #define OBD_FAIL_OSC_MATCH 0x405 #define OBD_FAIL_OSC_BRW_PREP_REQ 0x406 #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_PTLRPC 0x500 #define OBD_FAIL_PTLRPC_ACK 0x501 #define OBD_FAIL_PTLRPC_RQBD 0x502 #define OBD_FAIL_PTLRPC_BULK_GET_NET 0x503 #define OBD_FAIL_PTLRPC_BULK_PUT_NET 0x504 #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_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_FORCE_RECONNECT 0x702 #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_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_PAUSE_PROCESS_LOG 0x903 #define OBD_FAIL_MGS_PAUSE_REQ 0x904 #define OBD_FAIL_MGS_PAUSE_TARGET_REG 0x905 #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_GENERAL_ALLOC 0xC00 #define OBD_FAIL_SEQ 0x1000 #define OBD_FAIL_SEQ_QUERY_NET 0x1001 #define OBD_FAIL_FLD 0x1100 #define OBD_FAIL_FLD_QUERY_NET 0x1101 #define OBD_FAIL_SEC_CTX 0x1200 #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 /* Failure injection control */ #define OBD_FAIL_MASK_SYS 0x0000FF00 #define OBD_FAIL_MASK_LOC (0x000000FF | OBD_FAIL_MASK_SYS) #define OBD_FAILED_BIT 30 /* OBD_FAILED is 0x40000000 */ #define OBD_FAILED (1 << OBD_FAILED_BIT) #define OBD_FAIL_ONCE_BIT 31 /* OBD_FAIL_ONCE is 0x80000000 */ #define OBD_FAIL_ONCE (1 << OBD_FAIL_ONCE_BIT) /* The following flags aren't made to be combined */ #define OBD_FAIL_SKIP 0x20000000 /* skip N times then fail */ #define OBD_FAIL_SOME 0x10000000 /* only fail N times */ #define OBD_FAIL_RAND 0x08000000 /* fail 1/N of the times */ #define OBD_FAIL_USR1 0x04000000 /* user flag */ #define OBD_FAIL_PRECHECK(id) (obd_fail_loc && \ (obd_fail_loc & OBD_FAIL_MASK_LOC) == \ ((id) & OBD_FAIL_MASK_LOC)) static inline int obd_fail_check_set(__u32 id, __u32 value, int set) { int ret = 0; if (unlikely(OBD_FAIL_PRECHECK(id) && (ret = __obd_fail_check_set(id, value, set)))) { CERROR("*** obd_fail_loc=%x ***\n", id); } return ret; } /* If id hit obd_fail_loc, return 1, otherwise return 0 */ #define OBD_FAIL_CHECK(id) \ obd_fail_check_set(id, 0, OBD_FAIL_LOC_NOSET) /* If id hit obd_fail_loc, obd_fail_loc |= value and return 1, * otherwise return 0 */ #define OBD_FAIL_CHECK_ORSET(id, value) \ obd_fail_check_set(id, value, OBD_FAIL_LOC_ORSET) /* If id hit obd_fail_loc, obd_fail_loc = value and return 1, * otherwise return 0 */ #define OBD_FAIL_CHECK_RESET(id, value) \ obd_fail_check_set(id, value, OBD_FAIL_LOC_RESET) static inline int obd_fail_timeout_set(__u32 id, __u32 value, int ms, int set) { if (unlikely(OBD_FAIL_PRECHECK(id))) return __obd_fail_timeout_set(id, value, ms, set); else return 0; } /* If id hit obd_fail_loc, sleep for seconds or milliseconds */ #define OBD_FAIL_TIMEOUT(id, secs) \ obd_fail_timeout_set(id, 0, secs * 1000, OBD_FAIL_LOC_NOSET) #define OBD_FAIL_TIMEOUT_MS(id, ms) \ obd_fail_timeout_set(id, 0, ms, OBD_FAIL_LOC_NOSET) /* If id hit obd_fail_loc, obd_fail_loc |= value and * sleep seconds or milliseconds */ #define OBD_FAIL_TIMEOUT_ORSET(id, value, secs) \ obd_fail_timeout_set(id, value, secs * 1000, OBD_FAIL_LOC_ORSET) #define OBD_FAIL_TIMEOUT_MS_ORSET(id, value, ms) \ obd_fail_timeout_set(id, value, ms, OBD_FAIL_LOC_ORSET) #ifdef __KERNEL__ static inline void obd_fail_write(int id, struct super_block *sb) { /* We set FAIL_ONCE because we never "un-fail" a device */ if (OBD_FAIL_CHECK_ORSET(id & ~OBD_FAIL_ONCE, OBD_FAIL_ONCE)) { #ifdef LIBCFS_DEBUG BDEVNAME_DECLARE_STORAGE(tmp); CERROR("obd_fail_loc=%x, fail write operation on %s\n", id, ll_bdevname(sb, tmp)); #endif /* TODO-CMD: fix getting jdev */ __lvfs_set_rdonly(lvfs_sbdev(sb), (lvfs_sbdev_type)0); } } #define OBD_FAIL_WRITE(id, sb) obd_fail_write(id, sb) /* 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. */ static inline void obd_race(__u32 id) { if (OBD_FAIL_PRECHECK(id)) { if (unlikely(__obd_fail_check_set(id, 0, OBD_FAIL_LOC_NOSET))) { 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 { CERROR("obd_fail_race id %x waking\n", id); obd_race_state = 1; cfs_waitq_signal(&obd_race_waitq); } } } #define OBD_RACE(id) obd_race(id) #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 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); #else extern __u64 obd_alloc; extern __u64 obd_pages; extern __u64 obd_max_alloc; extern __u64 obd_max_pages; static inline void obd_memory_add(long size) { obd_alloc += size; if (obd_alloc > obd_max_alloc) obd_max_alloc = obd_alloc; } static inline void obd_memory_sub(long size) { obd_alloc -= size; } static inline void obd_pages_add(int order) { obd_pages += 1<< order; if (obd_pages > obd_max_pages) obd_max_pages = obd_pages; } static inline void obd_pages_sub(int order) { obd_pages -= 1<< order; } #define obd_memory_sum() (obd_alloc) #define obd_pages_sum() (obd_pages) #define obd_memory_max() (obd_max_alloc) #define obd_pages_max() (obd_max_pages) #endif #define OBD_DEBUG_MEMUSAGE (1) #if OBD_DEBUG_MEMUSAGE #define OBD_ALLOC_POST(ptr, size, name) \ 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); \ obd_memory_sub(size); \ CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n", \ (int)(size), ptr); \ POISON(ptr, 0x5a, size) #else /* !OBD_DEBUG_MEMUSAGE */ #define OBD_ALLOC_POST(ptr, size, name) ((void)0) #define OBD_FREE_PRE(ptr, size, name) ((void)0) #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 { \ (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__); \ } else { \ memset(ptr, 0, size); \ CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p\n", \ (int)(size), ptr); \ } \ } 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 (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"); \ } \ } while (0) #endif #ifndef OBD_ALLOC_MASK # define OBD_ALLOC_MASK CFS_ALLOC_IO #endif #define OBD_ALLOC(ptr, size) OBD_ALLOC_GFP(ptr, size, OBD_ALLOC_MASK) #define OBD_ALLOC_WAIT(ptr, size) OBD_ALLOC_GFP(ptr, size, CFS_ALLOC_STD) #define OBD_ALLOC_PTR(ptr) OBD_ALLOC(ptr, sizeof *(ptr)) #define OBD_ALLOC_PTR_WAIT(ptr) OBD_ALLOC_WAIT(ptr, sizeof *(ptr)) #ifdef __arch_um__ # define OBD_VMALLOC(ptr, size) OBD_ALLOC(ptr, size) #else # define OBD_VMALLOC(ptr, size) \ do { \ (ptr) = cfs_alloc_large(size); \ if (unlikely((ptr) == NULL)) { \ 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 CONFIG_DEBUG_SLAB #define POISON(ptr, c, s) do {} while (0) #define POISON_PTR(ptr) ((void)0) #else #define POISON(ptr, c, s) memset(ptr, c, s) #define POISON_PTR(ptr) (ptr) = (void *)0xdeadbeef #endif #ifdef POISON_BULK #define POISON_PAGE(page, val) do { memset(kmap(page), val, CFS_PAGE_SIZE); \ kunmap(page); } while (0) #else #define POISON_PAGE(page, val) do { } while (0) #endif #ifdef __KERNEL__ #define OBD_FREE(ptr, size) \ do { \ OBD_FREE_PRE(ptr, size, "kfreed"); \ cfs_free(ptr); \ POISON_PTR(ptr); \ } while(0) #ifdef HAVE_RCU # ifdef HAVE_CALL_RCU_PARAM # define my_call_rcu(rcu, cb) call_rcu(rcu, cb, rcu) # else # define my_call_rcu(rcu, cb) call_rcu(rcu, cb) # endif #else # define my_call_rcu(rcu, cb) (cb)(rcu) #endif #define OBD_FREE_RCU_CB(ptr, size, handle, free_cb) \ do { \ struct portals_handle *__h = (handle); \ LASSERT(handle); \ __h->h_ptr = (ptr); \ __h->h_size = (size); \ __h->h_free_cb = (void (*)(void *, size_t))(free_cb); \ my_call_rcu(&__h->h_rcu, class_handle_free_cb); \ POISON_PTR(ptr); \ } while(0) #define OBD_FREE_RCU(ptr, size, handle) OBD_FREE_RCU_CB(ptr, size, handle, NULL) #else #define OBD_FREE(ptr, size) ((void)(size), free((ptr))) #define OBD_FREE_RCU(ptr, size, handle) (OBD_FREE(ptr, size)) #define OBD_FREE_RCU_CB(ptr, size, handle, cb) ((*(cb))(ptr, size)) #endif /* ifdef __KERNEL__ */ #ifdef __arch_um__ # define OBD_VFREE(ptr, size) OBD_FREE(ptr, size) #else # define OBD_VFREE(ptr, size) \ do { \ OBD_FREE_PRE(ptr, size, "vfreed"); \ cfs_free_large(ptr); \ POISON_PTR(ptr); \ } while(0) #endif /* 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(ergo(type != CFS_ALLOC_ATOMIC, !cfs_in_interrupt())); \ (ptr) = cfs_mem_cache_alloc(slab, (type)); \ 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"); \ } \ } while(0) #define OBD_FREE_PTR(ptr) OBD_FREE(ptr, sizeof *(ptr)) #define OBD_SLAB_FREE(ptr, slab, size) \ do { \ OBD_FREE_PRE(ptr, size, "slab-freed"); \ cfs_mem_cache_free(slab, ptr); \ POISON_PTR(ptr); \ } while(0) #define OBD_SLAB_ALLOC_PTR(ptr, slab) \ 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 >= (sizeof(str)-1) && memcmp(key, str, (sizeof(str)-1)) == 0) /* Wrapper for contiguous page frame allocation */ #define OBD_PAGES_ALLOC(ptr, order, gfp_mask) \ do { \ (ptr) = cfs_alloc_pages(gfp_mask, order); \ if (unlikely((ptr) == NULL)) { \ CERROR("alloc_pages of '" #ptr "' %d page(s) / "LPU64" bytes "\ "failed\n", (int)(1 << (order)), \ (__u64)((1 << (order)) << 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(order); \ CDEBUG(D_MALLOC, "alloc_pages '" #ptr "': %d page(s) / " \ LPU64" bytes at %p.\n", \ (int)(1 << (order)), \ (__u64)((1 << (order)) << CFS_PAGE_SHIFT), ptr); \ } \ } while (0) #define OBD_PAGE_ALLOC(ptr, gfp_mask) \ OBD_PAGES_ALLOC(ptr, 0, gfp_mask) #define OBD_PAGES_FREE(ptr, order) \ do { \ LASSERT(ptr); \ obd_pages_sub(order); \ CDEBUG(D_MALLOC, "free_pages '" #ptr "': %d page(s) / "LPU64" bytes " \ "at %p.\n", \ (int)(1 << (order)), (__u64)((1 << (order)) << CFS_PAGE_SHIFT),\ ptr); \ __cfs_free_pages(ptr, order); \ (ptr) = (void *)0xdeadbeef; \ } while (0) #define OBD_PAGE_FREE(ptr) OBD_PAGES_FREE(ptr, 0) #endif