/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * * Copyright (C) 2001, 2002 Cluster File Systems, Inc. * * This file is part of Lustre, http://www.lustre.org. * * 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. * * 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 * along with Lustre; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ #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; 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 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 unsigned int obd_alloc_fail_rate; int __obd_fail_check_set(__u32 id, __u32 value, 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); /* 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_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_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_LOV_SYNC_RACE 0x13e #define OBD_FAIL_MDS_CLOSE_NET_REP 0x13f #define OBD_FAIL_MDS_LLOG_SYNC_TIMEOUT 0x140 #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_REQUESTS_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_CONNECT_NET2 0x225 #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_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_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_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_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_MDC_REVALIDATE_PAUSE 0x800 #define OBD_FAIL_MDC_ENQUEUE_PAUSE 0x801 #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_QUOTA_QD_COUNT_32BIT 0xa00 #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 /* 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 secs, int set) { int ret = 0; if (unlikely(OBD_FAIL_PRECHECK(id) && (ret = __obd_fail_check_set(id, value, set)))) { 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); } return ret; } /* If id hit obd_fail_loc, sleep secs */ #define OBD_FAIL_TIMEOUT(id, secs) \ obd_fail_timeout_set(id, 0, secs, OBD_FAIL_LOC_NOSET) /* If id hit obd_fail_loc, obd_fail_loc |= value and sleep secs */ #define OBD_FAIL_TIMEOUT_ORSET(id, value, secs) \ obd_fail_timeout_set(id, value, secs, 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; wake_up(&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 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 #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; }; 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) { 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; } static inline void __free_mem_track(struct obd_mem_track *mt) { kfree(mt); } static inline int __get_mem_track(void *ptr, int size, char *file, int line) { 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; } static inline int __put_mem_track(void *ptr, int size, char *file, int line) { 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; } } #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)) #else /* !CONFIG_DEBUG_MEMORY */ #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 */ #define OBD_DEBUG_MEMUSAGE (1) #if OBD_DEBUG_MEMUSAGE #define OBD_ALLOC_POST(ptr, size, name) \ obd_memory_add(size); \ get_mem_track((ptr), (size), __FILE__, __LINE__); \ 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__); \ 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(), 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(!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 KEY_IS(str) (keylen >= strlen(str) && strncmp(key, str, keylen) == 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(), \ 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