Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1 | /* |
| 2 | * GPL HEADER START |
| 3 | * |
| 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 only, |
| 8 | * as published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, but |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * General Public License version 2 for more details (a copy is included |
| 14 | * in the LICENSE file that accompanied this code). |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * version 2 along with this program; If not, see |
| 18 | * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf |
| 19 | * |
| 20 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 21 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 22 | * have any questions. |
| 23 | * |
| 24 | * GPL HEADER END |
| 25 | */ |
| 26 | /* |
| 27 | * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. |
| 28 | * Use is subject to license terms. |
| 29 | * |
| 30 | * Copyright (c) 2011, 2012, Intel Corporation. |
| 31 | */ |
| 32 | /* |
| 33 | * This file is part of Lustre, http://www.lustre.org/ |
| 34 | * Lustre is a trademark of Sun Microsystems, Inc. |
| 35 | * |
| 36 | * lustre/lov/lov_ea.c |
| 37 | * |
| 38 | * Author: Wang Di <wangdi@clusterfs.com> |
| 39 | */ |
| 40 | |
| 41 | #define DEBUG_SUBSYSTEM S_LOV |
| 42 | |
| 43 | #include <asm/div64.h> |
Greg Kroah-Hartman | 9fdaf8c | 2014-07-11 20:51:16 -0700 | [diff] [blame] | 44 | #include "../../include/linux/libcfs/libcfs.h" |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 45 | |
Greg Kroah-Hartman | 0cf0f7a | 2014-07-11 22:01:58 -0700 | [diff] [blame] | 46 | #include "../include/obd_class.h" |
| 47 | #include "../include/lustre/lustre_idl.h" |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 48 | |
| 49 | #include "lov_internal.h" |
| 50 | |
| 51 | struct lovea_unpack_args { |
| 52 | struct lov_stripe_md *lsm; |
| 53 | int cursor; |
| 54 | }; |
| 55 | |
| 56 | static int lsm_lmm_verify_common(struct lov_mds_md *lmm, int lmm_bytes, |
| 57 | __u16 stripe_count) |
| 58 | { |
Jinshan Xiong | 5dd1641 | 2013-07-23 00:06:39 +0800 | [diff] [blame] | 59 | if (stripe_count > LOV_V1_INSANE_STRIPE_COUNT) { |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 60 | CERROR("bad stripe count %d\n", stripe_count); |
Andreas Dilger | 53b7853 | 2013-06-03 21:40:47 +0800 | [diff] [blame] | 61 | lov_dump_lmm_common(D_WARNING, lmm); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 62 | return -EINVAL; |
| 63 | } |
| 64 | |
| 65 | if (lmm_oi_id(&lmm->lmm_oi) == 0) { |
| 66 | CERROR("zero object id\n"); |
Andreas Dilger | 53b7853 | 2013-06-03 21:40:47 +0800 | [diff] [blame] | 67 | lov_dump_lmm_common(D_WARNING, lmm); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 68 | return -EINVAL; |
| 69 | } |
| 70 | |
Jinshan Xiong | 5dd1641 | 2013-07-23 00:06:39 +0800 | [diff] [blame] | 71 | if (lov_pattern(le32_to_cpu(lmm->lmm_pattern)) != LOV_PATTERN_RAID0) { |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 72 | CERROR("bad striping pattern\n"); |
Andreas Dilger | 53b7853 | 2013-06-03 21:40:47 +0800 | [diff] [blame] | 73 | lov_dump_lmm_common(D_WARNING, lmm); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 74 | return -EINVAL; |
| 75 | } |
| 76 | |
| 77 | if (lmm->lmm_stripe_size == 0 || |
Andreas Dilger | 53b7853 | 2013-06-03 21:40:47 +0800 | [diff] [blame] | 78 | (le32_to_cpu(lmm->lmm_stripe_size)&(LOV_MIN_STRIPE_SIZE-1)) != 0) { |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 79 | CERROR("bad stripe size %u\n", |
| 80 | le32_to_cpu(lmm->lmm_stripe_size)); |
Andreas Dilger | 53b7853 | 2013-06-03 21:40:47 +0800 | [diff] [blame] | 81 | lov_dump_lmm_common(D_WARNING, lmm); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 82 | return -EINVAL; |
| 83 | } |
| 84 | return 0; |
| 85 | } |
| 86 | |
| 87 | struct lov_stripe_md *lsm_alloc_plain(__u16 stripe_count, int *size) |
| 88 | { |
| 89 | struct lov_stripe_md *lsm; |
| 90 | struct lov_oinfo *loi; |
| 91 | int i, oinfo_ptrs_size; |
| 92 | |
| 93 | LASSERT(stripe_count <= LOV_MAX_STRIPE_COUNT); |
| 94 | |
| 95 | oinfo_ptrs_size = sizeof(struct lov_oinfo *) * stripe_count; |
| 96 | *size = sizeof(struct lov_stripe_md) + oinfo_ptrs_size; |
| 97 | |
Julia Lawall | 3d0ba71 | 2015-06-11 14:02:54 +0200 | [diff] [blame] | 98 | lsm = libcfs_kvzalloc(*size, GFP_NOFS); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 99 | if (!lsm) |
Monam Agarwal | 76b8f53 | 2014-03-01 17:03:33 +0530 | [diff] [blame] | 100 | return NULL; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 101 | |
| 102 | for (i = 0; i < stripe_count; i++) { |
Mike Rapoport | ccaabce | 2015-10-20 12:39:49 +0300 | [diff] [blame] | 103 | loi = kmem_cache_alloc(lov_oinfo_slab, GFP_NOFS | __GFP_ZERO); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 104 | if (loi == NULL) |
| 105 | goto err; |
| 106 | lsm->lsm_oinfo[i] = loi; |
| 107 | } |
| 108 | lsm->lsm_stripe_count = stripe_count; |
| 109 | return lsm; |
| 110 | |
| 111 | err: |
| 112 | while (--i >= 0) |
Mike Rapoport | 5c4d8ed | 2015-10-20 12:39:52 +0300 | [diff] [blame^] | 113 | kmem_cache_free(lov_oinfo_slab, lsm->lsm_oinfo[i]); |
Julia Lawall | 3d0ba71 | 2015-06-11 14:02:54 +0200 | [diff] [blame] | 114 | kvfree(lsm); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 115 | return NULL; |
| 116 | } |
| 117 | |
| 118 | void lsm_free_plain(struct lov_stripe_md *lsm) |
| 119 | { |
| 120 | __u16 stripe_count = lsm->lsm_stripe_count; |
| 121 | int i; |
| 122 | |
| 123 | for (i = 0; i < stripe_count; i++) |
Mike Rapoport | 5c4d8ed | 2015-10-20 12:39:52 +0300 | [diff] [blame^] | 124 | kmem_cache_free(lov_oinfo_slab, lsm->lsm_oinfo[i]); |
Julia Lawall | 3d0ba71 | 2015-06-11 14:02:54 +0200 | [diff] [blame] | 125 | kvfree(lsm); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 126 | } |
| 127 | |
| 128 | static void lsm_unpackmd_common(struct lov_stripe_md *lsm, |
| 129 | struct lov_mds_md *lmm) |
| 130 | { |
| 131 | /* |
| 132 | * This supposes lov_mds_md_v1/v3 first fields are |
| 133 | * are the same |
| 134 | */ |
| 135 | lmm_oi_le_to_cpu(&lsm->lsm_oi, &lmm->lmm_oi); |
| 136 | lsm->lsm_stripe_size = le32_to_cpu(lmm->lmm_stripe_size); |
| 137 | lsm->lsm_pattern = le32_to_cpu(lmm->lmm_pattern); |
| 138 | lsm->lsm_layout_gen = le16_to_cpu(lmm->lmm_layout_gen); |
| 139 | lsm->lsm_pool_name[0] = '\0'; |
| 140 | } |
| 141 | |
| 142 | static void |
| 143 | lsm_stripe_by_index_plain(struct lov_stripe_md *lsm, int *stripeno, |
Oleg Drokin | 21aef7d | 2014-08-15 12:55:56 -0400 | [diff] [blame] | 144 | u64 *lov_off, u64 *swidth) |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 145 | { |
| 146 | if (swidth) |
Oleg Drokin | 21aef7d | 2014-08-15 12:55:56 -0400 | [diff] [blame] | 147 | *swidth = (u64)lsm->lsm_stripe_size * lsm->lsm_stripe_count; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 148 | } |
| 149 | |
| 150 | static void |
| 151 | lsm_stripe_by_offset_plain(struct lov_stripe_md *lsm, int *stripeno, |
Oleg Drokin | 21aef7d | 2014-08-15 12:55:56 -0400 | [diff] [blame] | 152 | u64 *lov_off, u64 *swidth) |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 153 | { |
| 154 | if (swidth) |
Oleg Drokin | 21aef7d | 2014-08-15 12:55:56 -0400 | [diff] [blame] | 155 | *swidth = (u64)lsm->lsm_stripe_size * lsm->lsm_stripe_count; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 156 | } |
| 157 | |
| 158 | static int lsm_destroy_plain(struct lov_stripe_md *lsm, struct obdo *oa, |
| 159 | struct obd_export *md_exp) |
| 160 | { |
| 161 | return 0; |
| 162 | } |
| 163 | |
| 164 | /* Find minimum stripe maxbytes value. For inactive or |
| 165 | * reconnecting targets use LUSTRE_STRIPE_MAXBYTES. */ |
| 166 | static void lov_tgt_maxbytes(struct lov_tgt_desc *tgt, __u64 *stripe_maxbytes) |
| 167 | { |
| 168 | struct obd_import *imp = tgt->ltd_obd->u.cli.cl_import; |
| 169 | |
| 170 | if (imp == NULL || !tgt->ltd_active) { |
| 171 | *stripe_maxbytes = LUSTRE_STRIPE_MAXBYTES; |
| 172 | return; |
| 173 | } |
| 174 | |
| 175 | spin_lock(&imp->imp_lock); |
| 176 | if (imp->imp_state == LUSTRE_IMP_FULL && |
| 177 | (imp->imp_connect_data.ocd_connect_flags & OBD_CONNECT_MAXBYTES) && |
| 178 | imp->imp_connect_data.ocd_maxbytes > 0) { |
| 179 | if (*stripe_maxbytes > imp->imp_connect_data.ocd_maxbytes) |
| 180 | *stripe_maxbytes = imp->imp_connect_data.ocd_maxbytes; |
| 181 | } else { |
| 182 | *stripe_maxbytes = LUSTRE_STRIPE_MAXBYTES; |
| 183 | } |
| 184 | spin_unlock(&imp->imp_lock); |
| 185 | } |
| 186 | |
| 187 | static int lsm_lmm_verify_v1(struct lov_mds_md_v1 *lmm, int lmm_bytes, |
| 188 | __u16 *stripe_count) |
| 189 | { |
| 190 | if (lmm_bytes < sizeof(*lmm)) { |
| 191 | CERROR("lov_mds_md_v1 too small: %d, need at least %d\n", |
| 192 | lmm_bytes, (int)sizeof(*lmm)); |
| 193 | return -EINVAL; |
| 194 | } |
| 195 | |
| 196 | *stripe_count = le16_to_cpu(lmm->lmm_stripe_count); |
Jinshan Xiong | 5dd1641 | 2013-07-23 00:06:39 +0800 | [diff] [blame] | 197 | if (le32_to_cpu(lmm->lmm_pattern) & LOV_PATTERN_F_RELEASED) |
| 198 | *stripe_count = 0; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 199 | |
| 200 | if (lmm_bytes < lov_mds_md_size(*stripe_count, LOV_MAGIC_V1)) { |
| 201 | CERROR("LOV EA V1 too small: %d, need %d\n", |
| 202 | lmm_bytes, lov_mds_md_size(*stripe_count, LOV_MAGIC_V1)); |
Andreas Dilger | 53b7853 | 2013-06-03 21:40:47 +0800 | [diff] [blame] | 203 | lov_dump_lmm_common(D_WARNING, lmm); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 204 | return -EINVAL; |
| 205 | } |
| 206 | |
| 207 | return lsm_lmm_verify_common(lmm, lmm_bytes, *stripe_count); |
| 208 | } |
| 209 | |
Le Tan | 12e397c | 2015-02-11 12:13:14 +0800 | [diff] [blame] | 210 | static int lsm_unpackmd_v1(struct lov_obd *lov, struct lov_stripe_md *lsm, |
| 211 | struct lov_mds_md_v1 *lmm) |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 212 | { |
| 213 | struct lov_oinfo *loi; |
| 214 | int i; |
Jinshan Xiong | 5dd1641 | 2013-07-23 00:06:39 +0800 | [diff] [blame] | 215 | int stripe_count; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 216 | __u64 stripe_maxbytes = OBD_OBJECT_EOF; |
| 217 | |
| 218 | lsm_unpackmd_common(lsm, lmm); |
| 219 | |
Jinshan Xiong | 5dd1641 | 2013-07-23 00:06:39 +0800 | [diff] [blame] | 220 | stripe_count = lsm_is_released(lsm) ? 0 : lsm->lsm_stripe_count; |
| 221 | |
| 222 | for (i = 0; i < stripe_count; i++) { |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 223 | /* XXX LOV STACKING call down to osc_unpackmd() */ |
| 224 | loi = lsm->lsm_oinfo[i]; |
| 225 | ostid_le_to_cpu(&lmm->lmm_objects[i].l_ost_oi, &loi->loi_oi); |
| 226 | loi->loi_ost_idx = le32_to_cpu(lmm->lmm_objects[i].l_ost_idx); |
| 227 | loi->loi_ost_gen = le32_to_cpu(lmm->lmm_objects[i].l_ost_gen); |
Yang Sheng | 397632e | 2015-03-25 21:53:22 -0400 | [diff] [blame] | 228 | if (lov_oinfo_is_dummy(loi)) |
| 229 | continue; |
| 230 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 231 | if (loi->loi_ost_idx >= lov->desc.ld_tgt_count) { |
| 232 | CERROR("OST index %d more than OST count %d\n", |
| 233 | loi->loi_ost_idx, lov->desc.ld_tgt_count); |
| 234 | lov_dump_lmm_v1(D_WARNING, lmm); |
| 235 | return -EINVAL; |
| 236 | } |
| 237 | if (!lov->lov_tgts[loi->loi_ost_idx]) { |
| 238 | CERROR("OST index %d missing\n", loi->loi_ost_idx); |
| 239 | lov_dump_lmm_v1(D_WARNING, lmm); |
| 240 | return -EINVAL; |
| 241 | } |
| 242 | /* calculate the minimum stripe max bytes */ |
| 243 | lov_tgt_maxbytes(lov->lov_tgts[loi->loi_ost_idx], |
| 244 | &stripe_maxbytes); |
| 245 | } |
| 246 | |
| 247 | lsm->lsm_maxbytes = stripe_maxbytes * lsm->lsm_stripe_count; |
Jinshan Xiong | 5dd1641 | 2013-07-23 00:06:39 +0800 | [diff] [blame] | 248 | if (lsm->lsm_stripe_count == 0) |
| 249 | lsm->lsm_maxbytes = stripe_maxbytes * lov->desc.ld_tgt_count; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 250 | |
| 251 | return 0; |
| 252 | } |
| 253 | |
| 254 | const struct lsm_operations lsm_v1_ops = { |
| 255 | .lsm_free = lsm_free_plain, |
| 256 | .lsm_destroy = lsm_destroy_plain, |
| 257 | .lsm_stripe_by_index = lsm_stripe_by_index_plain, |
| 258 | .lsm_stripe_by_offset = lsm_stripe_by_offset_plain, |
| 259 | .lsm_lmm_verify = lsm_lmm_verify_v1, |
| 260 | .lsm_unpackmd = lsm_unpackmd_v1, |
| 261 | }; |
| 262 | |
| 263 | static int lsm_lmm_verify_v3(struct lov_mds_md *lmmv1, int lmm_bytes, |
| 264 | __u16 *stripe_count) |
| 265 | { |
| 266 | struct lov_mds_md_v3 *lmm; |
| 267 | |
| 268 | lmm = (struct lov_mds_md_v3 *)lmmv1; |
| 269 | |
| 270 | if (lmm_bytes < sizeof(*lmm)) { |
| 271 | CERROR("lov_mds_md_v3 too small: %d, need at least %d\n", |
| 272 | lmm_bytes, (int)sizeof(*lmm)); |
| 273 | return -EINVAL; |
| 274 | } |
| 275 | |
| 276 | *stripe_count = le16_to_cpu(lmm->lmm_stripe_count); |
Jinshan Xiong | 5dd1641 | 2013-07-23 00:06:39 +0800 | [diff] [blame] | 277 | if (le32_to_cpu(lmm->lmm_pattern) & LOV_PATTERN_F_RELEASED) |
| 278 | *stripe_count = 0; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 279 | |
| 280 | if (lmm_bytes < lov_mds_md_size(*stripe_count, LOV_MAGIC_V3)) { |
| 281 | CERROR("LOV EA V3 too small: %d, need %d\n", |
| 282 | lmm_bytes, lov_mds_md_size(*stripe_count, LOV_MAGIC_V3)); |
Andreas Dilger | 53b7853 | 2013-06-03 21:40:47 +0800 | [diff] [blame] | 283 | lov_dump_lmm_common(D_WARNING, lmm); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 284 | return -EINVAL; |
| 285 | } |
| 286 | |
| 287 | return lsm_lmm_verify_common((struct lov_mds_md_v1 *)lmm, lmm_bytes, |
| 288 | *stripe_count); |
| 289 | } |
| 290 | |
Le Tan | 12e397c | 2015-02-11 12:13:14 +0800 | [diff] [blame] | 291 | static int lsm_unpackmd_v3(struct lov_obd *lov, struct lov_stripe_md *lsm, |
| 292 | struct lov_mds_md *lmmv1) |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 293 | { |
| 294 | struct lov_mds_md_v3 *lmm; |
| 295 | struct lov_oinfo *loi; |
| 296 | int i; |
Jinshan Xiong | 5dd1641 | 2013-07-23 00:06:39 +0800 | [diff] [blame] | 297 | int stripe_count; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 298 | __u64 stripe_maxbytes = OBD_OBJECT_EOF; |
| 299 | int cplen = 0; |
| 300 | |
| 301 | lmm = (struct lov_mds_md_v3 *)lmmv1; |
| 302 | |
| 303 | lsm_unpackmd_common(lsm, (struct lov_mds_md_v1 *)lmm); |
Jinshan Xiong | 5dd1641 | 2013-07-23 00:06:39 +0800 | [diff] [blame] | 304 | |
| 305 | stripe_count = lsm_is_released(lsm) ? 0 : lsm->lsm_stripe_count; |
| 306 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 307 | cplen = strlcpy(lsm->lsm_pool_name, lmm->lmm_pool_name, |
| 308 | sizeof(lsm->lsm_pool_name)); |
| 309 | if (cplen >= sizeof(lsm->lsm_pool_name)) |
| 310 | return -E2BIG; |
| 311 | |
Jinshan Xiong | 5dd1641 | 2013-07-23 00:06:39 +0800 | [diff] [blame] | 312 | for (i = 0; i < stripe_count; i++) { |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 313 | /* XXX LOV STACKING call down to osc_unpackmd() */ |
| 314 | loi = lsm->lsm_oinfo[i]; |
| 315 | ostid_le_to_cpu(&lmm->lmm_objects[i].l_ost_oi, &loi->loi_oi); |
| 316 | loi->loi_ost_idx = le32_to_cpu(lmm->lmm_objects[i].l_ost_idx); |
| 317 | loi->loi_ost_gen = le32_to_cpu(lmm->lmm_objects[i].l_ost_gen); |
Yang Sheng | 397632e | 2015-03-25 21:53:22 -0400 | [diff] [blame] | 318 | if (lov_oinfo_is_dummy(loi)) |
| 319 | continue; |
| 320 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 321 | if (loi->loi_ost_idx >= lov->desc.ld_tgt_count) { |
| 322 | CERROR("OST index %d more than OST count %d\n", |
| 323 | loi->loi_ost_idx, lov->desc.ld_tgt_count); |
| 324 | lov_dump_lmm_v3(D_WARNING, lmm); |
| 325 | return -EINVAL; |
| 326 | } |
| 327 | if (!lov->lov_tgts[loi->loi_ost_idx]) { |
| 328 | CERROR("OST index %d missing\n", loi->loi_ost_idx); |
| 329 | lov_dump_lmm_v3(D_WARNING, lmm); |
| 330 | return -EINVAL; |
| 331 | } |
| 332 | /* calculate the minimum stripe max bytes */ |
| 333 | lov_tgt_maxbytes(lov->lov_tgts[loi->loi_ost_idx], |
| 334 | &stripe_maxbytes); |
| 335 | } |
| 336 | |
| 337 | lsm->lsm_maxbytes = stripe_maxbytes * lsm->lsm_stripe_count; |
Jinshan Xiong | 5dd1641 | 2013-07-23 00:06:39 +0800 | [diff] [blame] | 338 | if (lsm->lsm_stripe_count == 0) |
| 339 | lsm->lsm_maxbytes = stripe_maxbytes * lov->desc.ld_tgt_count; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 340 | |
| 341 | return 0; |
| 342 | } |
| 343 | |
| 344 | const struct lsm_operations lsm_v3_ops = { |
| 345 | .lsm_free = lsm_free_plain, |
| 346 | .lsm_destroy = lsm_destroy_plain, |
| 347 | .lsm_stripe_by_index = lsm_stripe_by_index_plain, |
| 348 | .lsm_stripe_by_offset = lsm_stripe_by_offset_plain, |
| 349 | .lsm_lmm_verify = lsm_lmm_verify_v3, |
| 350 | .lsm_unpackmd = lsm_unpackmd_v3, |
| 351 | }; |
John L. Hammond | 081b726 | 2014-04-27 13:06:40 -0400 | [diff] [blame] | 352 | |
| 353 | void dump_lsm(unsigned int level, const struct lov_stripe_md *lsm) |
| 354 | { |
Joe Perches | 2d00bd1 | 2014-11-23 11:28:50 -0800 | [diff] [blame] | 355 | CDEBUG(level, "lsm %p, objid " DOSTID ", maxbytes %#llx, magic 0x%08X, stripe_size %u, stripe_count %u, refc: %d, layout_gen %u, pool [" LOV_POOLNAMEF "]\n", |
| 356 | lsm, |
John L. Hammond | 081b726 | 2014-04-27 13:06:40 -0400 | [diff] [blame] | 357 | POSTID(&lsm->lsm_oi), lsm->lsm_maxbytes, lsm->lsm_magic, |
| 358 | lsm->lsm_stripe_size, lsm->lsm_stripe_count, |
| 359 | atomic_read(&lsm->lsm_refc), lsm->lsm_layout_gen, |
| 360 | lsm->lsm_pool_name); |
| 361 | } |