/* -*- 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 /* global variables */ extern atomic_t obd_memory; extern int obd_memmax; extern unsigned int 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 adaptive_timeout_max; /* seconds */ extern unsigned int adaptive_timeout_history; /* seconds */ 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; /* Timeout definitions */ #define OBD_TIMEOUT_DEFAULT 100 #define LDLM_TIMEOUT_DEFAULT 20 /* Time to wait for all clients to reconnect during recovery */ /* Should be very conservative; must catch the first reconnect after reboot */ #define OBD_RECOVERY_TIMEOUT (obd_timeout * 5 / 2) /* Change recovery-small 26b time if you change this */ #define PING_INTERVAL max(obd_timeout / 4, 1U) /* Client may skip 1 ping; wait for 2.5 */ #define PING_EVICT_TIMEOUT (PING_INTERVAL * 5 / 2) #define DISK_TIMEOUT 50 /* Beyond this we warn about disk speed */ #define CONNECTION_SWITCH_MIN 5 /* Connection switching rate limiter */ #define CONNECTION_SWITCH_MAX 50 /* Max connect interval for nonresponsive servers; keep this within the recovery period */ #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_t(int,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_t(int,CONNECTION_SWITCH_MIN,obd_timeout/2) #endif #define LONG_UNLINK 300 /* Unlink should happen before now */ #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_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_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_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_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_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_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_OLD_EXT_FLAGS 0x802 #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_QD_COUNT_32BIT 0xA00 #define OBD_FAIL_LPROC_REMOVE 0xB00 #define OBD_FAIL_GENERAL_ALLOC 0xC00 /* Failure injection control */ #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 /* The following flags aren't made to be combined */ #define OBD_FAIL_SKIP 0x20000000 /* skip N then fail */ #define OBD_FAIL_SOME 0x10000000 /* fail N times */ #define OBD_FAIL_RAND 0x08000000 /* fail 1/N of the time */ #define OBD_FAIL_USR1 0x04000000 /* user flag */ static inline int obd_fail_check(__u32 id) { static int count = 0; if (likely((obd_fail_loc & OBD_FAIL_MASK_LOC) != (id & OBD_FAIL_MASK_LOC))) return 0; if ((obd_fail_loc & (OBD_FAILED | OBD_FAIL_ONCE)) == (OBD_FAILED | OBD_FAIL_ONCE)) { count = 0; /* paranoia */ return 0; } if (obd_fail_loc & OBD_FAIL_RAND) { unsigned int ll_rand(void); if (obd_fail_val < 2) return 0; if (ll_rand() % obd_fail_val > 0) return 0; } if (obd_fail_loc & OBD_FAIL_SKIP) { count++; if (count < obd_fail_val) return 0; count = 0; } /* Overridden by FAIL_ONCE */ if (obd_fail_loc & OBD_FAIL_SOME) { count++; if (count >= obd_fail_val) { count = 0; /* Don't fail anymore */ obd_fail_loc |= OBD_FAIL_ONCE; } } obd_fail_loc |= OBD_FAILED; /* Handle old checks that OR in this */ if (id & OBD_FAIL_ONCE) obd_fail_loc |= OBD_FAIL_ONCE; return 1; } #define OBD_FAIL_CHECK(id) \ ({ \ int _ret_ = 0; \ if (unlikely(obd_fail_loc && (_ret_ = obd_fail_check(id)))) { \ CERROR("*** obd_fail_loc=%x ***\n", id); \ } \ _ret_; \ }) #define OBD_FAIL_CHECK_QUIET(id) \ (unlikely(obd_fail_loc) ? obd_fail_check(id) : 0) /* deprecated - just use OBD_FAIL_CHECK */ #define OBD_FAIL_CHECK_ONCE OBD_FAIL_CHECK #define OBD_FAIL_RETURN(id, ret) \ do { \ if (unlikely(obd_fail_loc && obd_fail_check(id))) { \ CERROR("*** obd_fail_return=%x rc=%d ***\n", id, ret); \ RETURN(ret); \ } \ } while(0) #define OBD_FAIL_TIMEOUT(id, secs) \ ({ int _ret_ = 0; \ if (unlikely(obd_fail_loc && (_ret_ = obd_fail_check(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)); \ } \ _ret_; \ }) #define OBD_FAIL_TIMEOUT_MS(id, ms) \ ({ int _ret_ = 0; \ if (unlikely(obd_fail_loc && (_ret_ = obd_fail_check(id)))) { \ CERROR("obd_fail_timeout id %x sleeping for %d ms\n", \ (id), (ms)); \ set_current_state(TASK_UNINTERRUPTIBLE); \ cfs_schedule_timeout(CFS_TASK_UNINT, \ cfs_time_seconds(ms)/1000); \ set_current_state(TASK_RUNNING); \ CERROR("obd_fail_timeout id %x awake\n", (id)); \ } \ _ret_; \ }) #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_loc && obd_fail_check(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; #ifdef RANDOM_FAIL_ALLOC #define HAS_FAIL_ALLOC_FLAG OBD_FAIL_CHECK_QUIET(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 ((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); \ atomic_add(size, &obd_memory); \ if (atomic_read(&obd_memory) > obd_memmax) \ obd_memmax = atomic_read(&obd_memory); \ CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p (tot %d)\n", \ (int)(size), ptr, atomic_read(&obd_memory)); \ } \ } 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 ((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));\ } else { \ memset(ptr, 0, size); \ atomic_add(size, &obd_memory); \ if (atomic_read(&obd_memory) > obd_memmax) \ obd_memmax = atomic_read(&obd_memory); \ CDEBUG(D_MALLOC, "vmalloced '" #ptr "': %d at %p (tot %d)\n", \ (int)(size), ptr, atomic_read(&obd_memory)); \ } \ } while (0) #endif #ifdef CONFIG_DEBUG_SLAB #define POISON(ptr, c, s) do {} while (0) #else #define POISON(ptr, c, s) memset(ptr, c, s) #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 { \ LASSERT(ptr); \ atomic_sub(size, &obd_memory); \ CDEBUG(D_MALLOC, "kfreed '" #ptr "': %d at %p (tot %d).\n", \ (int)(size), ptr, atomic_read(&obd_memory)); \ POISON(ptr, 0x5a, size); \ cfs_free(ptr); \ (ptr) = (void *)0xdeadbeef; \ } 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); \ (ptr) = (void *)0xdeadbeef; \ } 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 __arch_um__ # define OBD_VFREE(ptr, size) OBD_FREE(ptr, size) #else # define OBD_VFREE(ptr, size) \ do { \ LASSERT(ptr); \ atomic_sub(size, &obd_memory); \ CDEBUG(D_MALLOC, "vfreed '" #ptr "': %d at %p (tot %d).\n", \ (int)(size), ptr, atomic_read(&obd_memory)); \ POISON(ptr, 0x5a, size); \ cfs_free_large(ptr); \ (ptr) = (void *)0xdeadbeef; \ } 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); \ atomic_add(size, &obd_memory); \ if (atomic_read(&obd_memory) > obd_memmax) \ obd_memmax = atomic_read(&obd_memory); \ CDEBUG(D_MALLOC, "slab-alloced '"#ptr"': %d at %p (tot %d)\n",\ (int)(size), ptr, atomic_read(&obd_memory)); \ } \ } while (0) #define OBD_FREE_PTR(ptr) OBD_FREE(ptr, sizeof *(ptr)) #define OBD_SLAB_FREE(ptr, slab, size) \ do { \ LASSERT(ptr); \ CDEBUG(D_MALLOC, "slab-freed '" #ptr "': %d at %p (tot %d).\n", \ (int)(size), ptr, atomic_read(&obd_memory)); \ atomic_sub(size, &obd_memory); \ POISON(ptr, 0x5a, size); \ cfs_mem_cache_free(slab, ptr); \ (ptr) = (void *)0xdeadbeef; \ } 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(key) && strcmp(key, str) == 0) #if defined(__linux__) #include #elif defined(__APPLE__) #include #elif defined(__WINNT__) #include #else #error Unsupported operating system. #endif #endif