/* -*- 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 #ifdef __KERNEL__ #include #include #include #include #endif #include #include /* global variables */ extern atomic_t obd_memory; extern int obd_memmax; extern unsigned int obd_fail_loc; extern unsigned int obd_timeout; extern char obd_lustre_upcall[128]; extern unsigned int obd_sync_filter; #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_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_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_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_PTLRPC 0x500 #define OBD_FAIL_PTLRPC_ACK 0x501 #define OBD_FAIL_OBD_PING_NET 0x600 #define OBD_FAIL_OBD_LOG_CANCEL_NET 0x601 #define OBD_FAIL_OBD_LOGD_NET 0x602 /* 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_MDS_ALL_NET 0x01000000 #define OBD_FAIL_OST_ALL_NET 0x02000000 #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 (OBD_FAIL_CHECK(id)) { \ CERROR("obd_fail_loc=%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 (OBD_FAIL_CHECK_ONCE(id)) { \ RETURN(ret); \ } \ } while(0) #define OBD_FAIL_TIMEOUT(id, secs) \ do { \ if (OBD_FAIL_CHECK_ONCE(id)) { \ CERROR("obd_fail_timeout id %x sleeping for %d secs\n", \ (id), (secs)); \ set_current_state(TASK_UNINTERRUPTIBLE); \ schedule_timeout((secs) * HZ); \ set_current_state(TASK_RUNNING); \ CERROR("obd_fail_timeout id %x awake\n", (id)); \ } \ } while(0) #define fixme() CDEBUG(D_OTHER, "FIXME\n"); #ifdef __KERNEL__ # include # include # if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) # define BDEVNAME_DECLARE_STORAGE(foo) char foo[BDEVNAME_SIZE] # define ll_bdevname(SB, STORAGE) __bdevname(kdev_t_to_nr(SB->s_dev), STORAGE) # define ll_lock_kernel lock_kernel() # define ll_sbdev(SB) ((SB)->s_bdev) void dev_set_rdonly(struct block_device *, int); # else # define BDEVNAME_DECLARE_STORAGE(foo) char __unused_##foo # define ll_sbdev(SB) (kdev_t_to_nr((SB)->s_dev)) # define ll_bdevname(SB,STORAGE) ((void)__unused_##STORAGE,bdevname(ll_sbdev(SB))) # define ll_lock_kernel void dev_set_rdonly(kdev_t, int); # endif void dev_clear_rdonly(int); static inline void OBD_FAIL_WRITE(int id, struct super_block *sb) { if (OBD_FAIL_CHECK(id)) { BDEVNAME_DECLARE_STORAGE(tmp); CERROR("obd_fail_loc=%x, fail write operation on %s\n", id, ll_bdevname(sb, tmp)); dev_set_rdonly(ll_sbdev(sb), 2); /* We set FAIL_ONCE because we never "un-fail" a device */ obd_fail_loc |= OBD_FAILED | OBD_FAIL_ONCE; } } #else /* !__KERNEL__ */ # define LTIME_S(time) (time) /* for obd_class.h */ # ifndef ERR_PTR # define ERR_PTR(a) ((void *)(a)) # endif #endif /* __KERNEL__ */ extern atomic_t portal_kmemory; #define OBD_ALLOC_GFP(ptr, size, gfp_mask) \ do { \ (ptr) = kmalloc(size, (gfp_mask)); \ if ((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(&portal_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, "kmalloced '" #ptr "': %d at %p (tot %d)\n", \ (int)(size), ptr, atomic_read(&obd_memory)); \ } \ } while (0) #ifndef OBD_GFP_MASK # define OBD_GFP_MASK GFP_NOFS #endif #define OBD_ALLOC(ptr, size) OBD_ALLOC_GFP(ptr, size, OBD_GFP_MASK) #define OBD_ALLOC_WAIT(ptr, size) OBD_ALLOC_GFP(ptr, size, GFP_KERNEL) #ifdef __arch_um__ # define OBD_VMALLOC(ptr, size) OBD_ALLOC(ptr, size) #else # define OBD_VMALLOC(ptr, size) \ do { \ (ptr) = vmalloc(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(&portal_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 #if POISON_BULK #define POISON_PAGE(page, val) do { memset(kmap(page), val, PAGE_SIZE); \ kunmap(page); } while (0) #else #define POISON_PAGE(page, val) do { } while (0) #endif #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); \ kfree(ptr); \ (ptr) = (void *)0xdeadbeef; \ } while (0) #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); \ vfree(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_ALLOC(ptr, slab, type, size) \ do { \ LASSERT(!in_interrupt()); \ (ptr) = kmem_cache_alloc(slab, (type)); \ if ((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(&portal_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, "slab-alloced '"#ptr"': %d at %p (tot %d)\n",\ (int)(size), ptr, atomic_read(&obd_memory)); \ } \ } while (0) #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); \ kmem_cache_free(slab, ptr); \ (ptr) = (void *)0xdeadbeef; \ } while (0) #endif