serial: replace remaining __FUNCTION__ occurrences
[linux-2.6.git] / fs / ocfs2 / resize.c
1 /* -*- mode: c; c-basic-offset: 8; -*-
2  * vim: noexpandtab sw=8 ts=8 sts=0:
3  *
4  * resize.c
5  *
6  * volume resize.
7  * Inspired by ext3/resize.c.
8  *
9  * Copyright (C) 2007 Oracle.  All rights reserved.
10  *
11  * This program is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU General Public
13  * License as published by the Free Software Foundation; either
14  * version 2 of the License, or (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
19  * General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public
22  * License along with this program; if not, write to the
23  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24  * Boston, MA 021110-1307, USA.
25  */
26
27 #include <linux/fs.h>
28 #include <linux/types.h>
29
30 #define MLOG_MASK_PREFIX ML_DISK_ALLOC
31 #include <cluster/masklog.h>
32
33 #include "ocfs2.h"
34
35 #include "alloc.h"
36 #include "dlmglue.h"
37 #include "inode.h"
38 #include "journal.h"
39 #include "super.h"
40 #include "sysfile.h"
41 #include "uptodate.h"
42
43 #include "buffer_head_io.h"
44 #include "suballoc.h"
45 #include "resize.h"
46
47 /*
48  * Check whether there are new backup superblocks exist
49  * in the last group. If there are some, mark them or clear
50  * them in the bitmap.
51  *
52  * Return how many backups we find in the last group.
53  */
54 static u16 ocfs2_calc_new_backup_super(struct inode *inode,
55                                        struct ocfs2_group_desc *gd,
56                                        int new_clusters,
57                                        u32 first_new_cluster,
58                                        u16 cl_cpg,
59                                        int set)
60 {
61         int i;
62         u16 backups = 0;
63         u32 cluster;
64         u64 blkno, gd_blkno, lgd_blkno = le64_to_cpu(gd->bg_blkno);
65
66         for (i = 0; i < OCFS2_MAX_BACKUP_SUPERBLOCKS; i++) {
67                 blkno = ocfs2_backup_super_blkno(inode->i_sb, i);
68                 cluster = ocfs2_blocks_to_clusters(inode->i_sb, blkno);
69
70                 gd_blkno = ocfs2_which_cluster_group(inode, cluster);
71                 if (gd_blkno < lgd_blkno)
72                         continue;
73                 else if (gd_blkno > lgd_blkno)
74                         break;
75
76                 if (set)
77                         ocfs2_set_bit(cluster % cl_cpg,
78                                       (unsigned long *)gd->bg_bitmap);
79                 else
80                         ocfs2_clear_bit(cluster % cl_cpg,
81                                         (unsigned long *)gd->bg_bitmap);
82                 backups++;
83         }
84
85         mlog_exit_void();
86         return backups;
87 }
88
89 static int ocfs2_update_last_group_and_inode(handle_t *handle,
90                                              struct inode *bm_inode,
91                                              struct buffer_head *bm_bh,
92                                              struct buffer_head *group_bh,
93                                              u32 first_new_cluster,
94                                              int new_clusters)
95 {
96         int ret = 0;
97         struct ocfs2_super *osb = OCFS2_SB(bm_inode->i_sb);
98         struct ocfs2_dinode *fe = (struct ocfs2_dinode *) bm_bh->b_data;
99         struct ocfs2_chain_list *cl = &fe->id2.i_chain;
100         struct ocfs2_chain_rec *cr;
101         struct ocfs2_group_desc *group;
102         u16 chain, num_bits, backups = 0;
103         u16 cl_bpc = le16_to_cpu(cl->cl_bpc);
104         u16 cl_cpg = le16_to_cpu(cl->cl_cpg);
105
106         mlog_entry("(new_clusters=%d, first_new_cluster = %u)\n",
107                    new_clusters, first_new_cluster);
108
109         ret = ocfs2_journal_access(handle, bm_inode, group_bh,
110                                    OCFS2_JOURNAL_ACCESS_WRITE);
111         if (ret < 0) {
112                 mlog_errno(ret);
113                 goto out;
114         }
115
116         group = (struct ocfs2_group_desc *)group_bh->b_data;
117
118         /* update the group first. */
119         num_bits = new_clusters * cl_bpc;
120         le16_add_cpu(&group->bg_bits, num_bits);
121         le16_add_cpu(&group->bg_free_bits_count, num_bits);
122
123         /*
124          * check whether there are some new backup superblocks exist in
125          * this group and update the group bitmap accordingly.
126          */
127         if (OCFS2_HAS_COMPAT_FEATURE(osb->sb,
128                                      OCFS2_FEATURE_COMPAT_BACKUP_SB)) {
129                 backups = ocfs2_calc_new_backup_super(bm_inode,
130                                                      group,
131                                                      new_clusters,
132                                                      first_new_cluster,
133                                                      cl_cpg, 1);
134                 le16_add_cpu(&group->bg_free_bits_count, -1 * backups);
135         }
136
137         ret = ocfs2_journal_dirty(handle, group_bh);
138         if (ret < 0) {
139                 mlog_errno(ret);
140                 goto out_rollback;
141         }
142
143         /* update the inode accordingly. */
144         ret = ocfs2_journal_access(handle, bm_inode, bm_bh,
145                                    OCFS2_JOURNAL_ACCESS_WRITE);
146         if (ret < 0) {
147                 mlog_errno(ret);
148                 goto out_rollback;
149         }
150
151         chain = le16_to_cpu(group->bg_chain);
152         cr = (&cl->cl_recs[chain]);
153         le32_add_cpu(&cr->c_total, num_bits);
154         le32_add_cpu(&cr->c_free, num_bits);
155         le32_add_cpu(&fe->id1.bitmap1.i_total, num_bits);
156         le32_add_cpu(&fe->i_clusters, new_clusters);
157
158         if (backups) {
159                 le32_add_cpu(&cr->c_free, -1 * backups);
160                 le32_add_cpu(&fe->id1.bitmap1.i_used, backups);
161         }
162
163         spin_lock(&OCFS2_I(bm_inode)->ip_lock);
164         OCFS2_I(bm_inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
165         le64_add_cpu(&fe->i_size, new_clusters << osb->s_clustersize_bits);
166         spin_unlock(&OCFS2_I(bm_inode)->ip_lock);
167         i_size_write(bm_inode, le64_to_cpu(fe->i_size));
168
169         ocfs2_journal_dirty(handle, bm_bh);
170
171 out_rollback:
172         if (ret < 0) {
173                 ocfs2_calc_new_backup_super(bm_inode,
174                                             group,
175                                             new_clusters,
176                                             first_new_cluster,
177                                             cl_cpg, 0);
178                 le16_add_cpu(&group->bg_free_bits_count, backups);
179                 le16_add_cpu(&group->bg_bits, -1 * num_bits);
180                 le16_add_cpu(&group->bg_free_bits_count, -1 * num_bits);
181         }
182 out:
183         mlog_exit(ret);
184         return ret;
185 }
186
187 static int update_backups(struct inode * inode, u32 clusters, char *data)
188 {
189         int i, ret = 0;
190         u32 cluster;
191         u64 blkno;
192         struct buffer_head *backup = NULL;
193         struct ocfs2_dinode *backup_di = NULL;
194         struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
195
196         /* calculate the real backups we need to update. */
197         for (i = 0; i < OCFS2_MAX_BACKUP_SUPERBLOCKS; i++) {
198                 blkno = ocfs2_backup_super_blkno(inode->i_sb, i);
199                 cluster = ocfs2_blocks_to_clusters(inode->i_sb, blkno);
200                 if (cluster > clusters)
201                         break;
202
203                 ret = ocfs2_read_block(osb, blkno, &backup, 0, NULL);
204                 if (ret < 0) {
205                         mlog_errno(ret);
206                         break;
207                 }
208
209                 memcpy(backup->b_data, data, inode->i_sb->s_blocksize);
210
211                 backup_di = (struct ocfs2_dinode *)backup->b_data;
212                 backup_di->i_blkno = cpu_to_le64(blkno);
213
214                 ret = ocfs2_write_super_or_backup(osb, backup);
215                 brelse(backup);
216                 backup = NULL;
217                 if (ret < 0) {
218                         mlog_errno(ret);
219                         break;
220                 }
221         }
222
223         return ret;
224 }
225
226 static void ocfs2_update_super_and_backups(struct inode *inode,
227                                            int new_clusters)
228 {
229         int ret;
230         u32 clusters = 0;
231         struct buffer_head *super_bh = NULL;
232         struct ocfs2_dinode *super_di = NULL;
233         struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
234
235         /*
236          * update the superblock last.
237          * It doesn't matter if the write failed.
238          */
239         ret = ocfs2_read_block(osb, OCFS2_SUPER_BLOCK_BLKNO,
240                                &super_bh, 0, NULL);
241         if (ret < 0) {
242                 mlog_errno(ret);
243                 goto out;
244         }
245
246         super_di = (struct ocfs2_dinode *)super_bh->b_data;
247         le32_add_cpu(&super_di->i_clusters, new_clusters);
248         clusters = le32_to_cpu(super_di->i_clusters);
249
250         ret = ocfs2_write_super_or_backup(osb, super_bh);
251         if (ret < 0) {
252                 mlog_errno(ret);
253                 goto out;
254         }
255
256         if (OCFS2_HAS_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_COMPAT_BACKUP_SB))
257                 ret = update_backups(inode, clusters, super_bh->b_data);
258
259 out:
260         brelse(super_bh);
261         if (ret)
262                 printk(KERN_WARNING "ocfs2: Failed to update super blocks on %s"
263                         " during fs resize. This condition is not fatal,"
264                         " but fsck.ocfs2 should be run to fix it\n",
265                         osb->dev_str);
266         return;
267 }
268
269 /*
270  * Extend the filesystem to the new number of clusters specified.  This entry
271  * point is only used to extend the current filesystem to the end of the last
272  * existing group.
273  */
274 int ocfs2_group_extend(struct inode * inode, int new_clusters)
275 {
276         int ret;
277         handle_t *handle;
278         struct buffer_head *main_bm_bh = NULL;
279         struct buffer_head *group_bh = NULL;
280         struct inode *main_bm_inode = NULL;
281         struct ocfs2_dinode *fe = NULL;
282         struct ocfs2_group_desc *group = NULL;
283         struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
284         u16 cl_bpc;
285         u32 first_new_cluster;
286         u64 lgd_blkno;
287
288         mlog_entry_void();
289
290         if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb))
291                 return -EROFS;
292
293         if (new_clusters < 0)
294                 return -EINVAL;
295         else if (new_clusters == 0)
296                 return 0;
297
298         main_bm_inode = ocfs2_get_system_file_inode(osb,
299                                                     GLOBAL_BITMAP_SYSTEM_INODE,
300                                                     OCFS2_INVALID_SLOT);
301         if (!main_bm_inode) {
302                 ret = -EINVAL;
303                 mlog_errno(ret);
304                 goto out;
305         }
306
307         mutex_lock(&main_bm_inode->i_mutex);
308
309         ret = ocfs2_inode_lock(main_bm_inode, &main_bm_bh, 1);
310         if (ret < 0) {
311                 mlog_errno(ret);
312                 goto out_mutex;
313         }
314
315         fe = (struct ocfs2_dinode *)main_bm_bh->b_data;
316
317         if (le16_to_cpu(fe->id2.i_chain.cl_cpg) !=
318                                  ocfs2_group_bitmap_size(osb->sb) * 8) {
319                 mlog(ML_ERROR, "The disk is too old and small. "
320                      "Force to do offline resize.");
321                 ret = -EINVAL;
322                 goto out_unlock;
323         }
324
325         if (!OCFS2_IS_VALID_DINODE(fe)) {
326                 OCFS2_RO_ON_INVALID_DINODE(main_bm_inode->i_sb, fe);
327                 ret = -EIO;
328                 goto out_unlock;
329         }
330
331         first_new_cluster = le32_to_cpu(fe->i_clusters);
332         lgd_blkno = ocfs2_which_cluster_group(main_bm_inode,
333                                               first_new_cluster - 1);
334
335         ret = ocfs2_read_block(osb, lgd_blkno, &group_bh, OCFS2_BH_CACHED,
336                                main_bm_inode);
337         if (ret < 0) {
338                 mlog_errno(ret);
339                 goto out_unlock;
340         }
341
342         group = (struct ocfs2_group_desc *)group_bh->b_data;
343
344         ret = ocfs2_check_group_descriptor(inode->i_sb, fe, group);
345         if (ret) {
346                 mlog_errno(ret);
347                 goto out_unlock;
348         }
349
350         cl_bpc = le16_to_cpu(fe->id2.i_chain.cl_bpc);
351         if (le16_to_cpu(group->bg_bits) / cl_bpc + new_clusters >
352                 le16_to_cpu(fe->id2.i_chain.cl_cpg)) {
353                 ret = -EINVAL;
354                 goto out_unlock;
355         }
356
357         mlog(0, "extend the last group at %llu, new clusters = %d\n",
358              (unsigned long long)le64_to_cpu(group->bg_blkno), new_clusters);
359
360         handle = ocfs2_start_trans(osb, OCFS2_GROUP_EXTEND_CREDITS);
361         if (IS_ERR(handle)) {
362                 mlog_errno(PTR_ERR(handle));
363                 ret = -EINVAL;
364                 goto out_unlock;
365         }
366
367         /* update the last group descriptor and inode. */
368         ret = ocfs2_update_last_group_and_inode(handle, main_bm_inode,
369                                                 main_bm_bh, group_bh,
370                                                 first_new_cluster,
371                                                 new_clusters);
372         if (ret) {
373                 mlog_errno(ret);
374                 goto out_commit;
375         }
376
377         ocfs2_update_super_and_backups(main_bm_inode, new_clusters);
378
379 out_commit:
380         ocfs2_commit_trans(osb, handle);
381 out_unlock:
382         brelse(group_bh);
383         brelse(main_bm_bh);
384
385         ocfs2_inode_unlock(main_bm_inode, 1);
386
387 out_mutex:
388         mutex_unlock(&main_bm_inode->i_mutex);
389         iput(main_bm_inode);
390
391 out:
392         mlog_exit_void();
393         return ret;
394 }
395
396 static int ocfs2_check_new_group(struct inode *inode,
397                                  struct ocfs2_dinode *di,
398                                  struct ocfs2_new_group_input *input,
399                                  struct buffer_head *group_bh)
400 {
401         int ret;
402         struct ocfs2_group_desc *gd;
403         u16 cl_bpc = le16_to_cpu(di->id2.i_chain.cl_bpc);
404         unsigned int max_bits = le16_to_cpu(di->id2.i_chain.cl_cpg) *
405                                 le16_to_cpu(di->id2.i_chain.cl_bpc);
406
407
408         gd = (struct ocfs2_group_desc *)group_bh->b_data;
409
410         ret = -EIO;
411         if (!OCFS2_IS_VALID_GROUP_DESC(gd))
412                 mlog(ML_ERROR, "Group descriptor # %llu isn't valid.\n",
413                      (unsigned long long)le64_to_cpu(gd->bg_blkno));
414         else if (di->i_blkno != gd->bg_parent_dinode)
415                 mlog(ML_ERROR, "Group descriptor # %llu has bad parent "
416                      "pointer (%llu, expected %llu)\n",
417                      (unsigned long long)le64_to_cpu(gd->bg_blkno),
418                      (unsigned long long)le64_to_cpu(gd->bg_parent_dinode),
419                      (unsigned long long)le64_to_cpu(di->i_blkno));
420         else if (le16_to_cpu(gd->bg_bits) > max_bits)
421                 mlog(ML_ERROR, "Group descriptor # %llu has bit count of %u\n",
422                      (unsigned long long)le64_to_cpu(gd->bg_blkno),
423                      le16_to_cpu(gd->bg_bits));
424         else if (le16_to_cpu(gd->bg_free_bits_count) > le16_to_cpu(gd->bg_bits))
425                 mlog(ML_ERROR, "Group descriptor # %llu has bit count %u but "
426                      "claims that %u are free\n",
427                      (unsigned long long)le64_to_cpu(gd->bg_blkno),
428                      le16_to_cpu(gd->bg_bits),
429                      le16_to_cpu(gd->bg_free_bits_count));
430         else if (le16_to_cpu(gd->bg_bits) > (8 * le16_to_cpu(gd->bg_size)))
431                 mlog(ML_ERROR, "Group descriptor # %llu has bit count %u but "
432                      "max bitmap bits of %u\n",
433                      (unsigned long long)le64_to_cpu(gd->bg_blkno),
434                      le16_to_cpu(gd->bg_bits),
435                      8 * le16_to_cpu(gd->bg_size));
436         else if (le16_to_cpu(gd->bg_chain) != input->chain)
437                 mlog(ML_ERROR, "Group descriptor # %llu has bad chain %u "
438                      "while input has %u set.\n",
439                      (unsigned long long)le64_to_cpu(gd->bg_blkno),
440                      le16_to_cpu(gd->bg_chain), input->chain);
441         else if (le16_to_cpu(gd->bg_bits) != input->clusters * cl_bpc)
442                 mlog(ML_ERROR, "Group descriptor # %llu has bit count %u but "
443                      "input has %u clusters set\n",
444                      (unsigned long long)le64_to_cpu(gd->bg_blkno),
445                      le16_to_cpu(gd->bg_bits), input->clusters);
446         else if (le16_to_cpu(gd->bg_free_bits_count) != input->frees * cl_bpc)
447                 mlog(ML_ERROR, "Group descriptor # %llu has free bit count %u "
448                      "but it should have %u set\n",
449                      (unsigned long long)le64_to_cpu(gd->bg_blkno),
450                      le16_to_cpu(gd->bg_bits),
451                      input->frees * cl_bpc);
452         else
453                 ret = 0;
454
455         return ret;
456 }
457
458 static int ocfs2_verify_group_and_input(struct inode *inode,
459                                         struct ocfs2_dinode *di,
460                                         struct ocfs2_new_group_input *input,
461                                         struct buffer_head *group_bh)
462 {
463         u16 cl_count = le16_to_cpu(di->id2.i_chain.cl_count);
464         u16 cl_cpg = le16_to_cpu(di->id2.i_chain.cl_cpg);
465         u16 next_free = le16_to_cpu(di->id2.i_chain.cl_next_free_rec);
466         u32 cluster = ocfs2_blocks_to_clusters(inode->i_sb, input->group);
467         u32 total_clusters = le32_to_cpu(di->i_clusters);
468         int ret = -EINVAL;
469
470         if (cluster < total_clusters)
471                 mlog(ML_ERROR, "add a group which is in the current volume.\n");
472         else if (input->chain >= cl_count)
473                 mlog(ML_ERROR, "input chain exceeds the limit.\n");
474         else if (next_free != cl_count && next_free != input->chain)
475                 mlog(ML_ERROR,
476                      "the add group should be in chain %u\n", next_free);
477         else if (total_clusters + input->clusters < total_clusters)
478                 mlog(ML_ERROR, "add group's clusters overflow.\n");
479         else if (input->clusters > cl_cpg)
480                 mlog(ML_ERROR, "the cluster exceeds the maximum of a group\n");
481         else if (input->frees > input->clusters)
482                 mlog(ML_ERROR, "the free cluster exceeds the total clusters\n");
483         else if (total_clusters % cl_cpg != 0)
484                 mlog(ML_ERROR,
485                      "the last group isn't full. Use group extend first.\n");
486         else if (input->group != ocfs2_which_cluster_group(inode, cluster))
487                 mlog(ML_ERROR, "group blkno is invalid\n");
488         else if ((ret = ocfs2_check_new_group(inode, di, input, group_bh)))
489                 mlog(ML_ERROR, "group descriptor check failed.\n");
490         else
491                 ret = 0;
492
493         return ret;
494 }
495
496 /* Add a new group descriptor to global_bitmap. */
497 int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input)
498 {
499         int ret;
500         handle_t *handle;
501         struct buffer_head *main_bm_bh = NULL;
502         struct inode *main_bm_inode = NULL;
503         struct ocfs2_dinode *fe = NULL;
504         struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
505         struct buffer_head *group_bh = NULL;
506         struct ocfs2_group_desc *group = NULL;
507         struct ocfs2_chain_list *cl;
508         struct ocfs2_chain_rec *cr;
509         u16 cl_bpc;
510
511         mlog_entry_void();
512
513         if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb))
514                 return -EROFS;
515
516         main_bm_inode = ocfs2_get_system_file_inode(osb,
517                                                     GLOBAL_BITMAP_SYSTEM_INODE,
518                                                     OCFS2_INVALID_SLOT);
519         if (!main_bm_inode) {
520                 ret = -EINVAL;
521                 mlog_errno(ret);
522                 goto out;
523         }
524
525         mutex_lock(&main_bm_inode->i_mutex);
526
527         ret = ocfs2_inode_lock(main_bm_inode, &main_bm_bh, 1);
528         if (ret < 0) {
529                 mlog_errno(ret);
530                 goto out_mutex;
531         }
532
533         fe = (struct ocfs2_dinode *)main_bm_bh->b_data;
534
535         if (le16_to_cpu(fe->id2.i_chain.cl_cpg) !=
536                                  ocfs2_group_bitmap_size(osb->sb) * 8) {
537                 mlog(ML_ERROR, "The disk is too old and small."
538                      " Force to do offline resize.");
539                 ret = -EINVAL;
540                 goto out_unlock;
541         }
542
543         ret = ocfs2_read_block(osb, input->group, &group_bh, 0, NULL);
544         if (ret < 0) {
545                 mlog(ML_ERROR, "Can't read the group descriptor # %llu "
546                      "from the device.", (unsigned long long)input->group);
547                 goto out_unlock;
548         }
549
550         ocfs2_set_new_buffer_uptodate(inode, group_bh);
551
552         ret = ocfs2_verify_group_and_input(main_bm_inode, fe, input, group_bh);
553         if (ret) {
554                 mlog_errno(ret);
555                 goto out_unlock;
556         }
557
558         mlog(0, "Add a new group  %llu in chain = %u, length = %u\n",
559              (unsigned long long)input->group, input->chain, input->clusters);
560
561         handle = ocfs2_start_trans(osb, OCFS2_GROUP_ADD_CREDITS);
562         if (IS_ERR(handle)) {
563                 mlog_errno(PTR_ERR(handle));
564                 ret = -EINVAL;
565                 goto out_unlock;
566         }
567
568         cl_bpc = le16_to_cpu(fe->id2.i_chain.cl_bpc);
569         cl = &fe->id2.i_chain;
570         cr = &cl->cl_recs[input->chain];
571
572         ret = ocfs2_journal_access(handle, main_bm_inode, group_bh,
573                                    OCFS2_JOURNAL_ACCESS_WRITE);
574         if (ret < 0) {
575                 mlog_errno(ret);
576                 goto out_commit;
577         }
578
579         group = (struct ocfs2_group_desc *)group_bh->b_data;
580         group->bg_next_group = cr->c_blkno;
581
582         ret = ocfs2_journal_dirty(handle, group_bh);
583         if (ret < 0) {
584                 mlog_errno(ret);
585                 goto out_commit;
586         }
587
588         ret = ocfs2_journal_access(handle, main_bm_inode, main_bm_bh,
589                                    OCFS2_JOURNAL_ACCESS_WRITE);
590         if (ret < 0) {
591                 mlog_errno(ret);
592                 goto out_commit;
593         }
594
595         if (input->chain == le16_to_cpu(cl->cl_next_free_rec)) {
596                 le16_add_cpu(&cl->cl_next_free_rec, 1);
597                 memset(cr, 0, sizeof(struct ocfs2_chain_rec));
598         }
599
600         cr->c_blkno = cpu_to_le64(input->group);
601         le32_add_cpu(&cr->c_total, input->clusters * cl_bpc);
602         le32_add_cpu(&cr->c_free, input->frees * cl_bpc);
603
604         le32_add_cpu(&fe->id1.bitmap1.i_total, input->clusters *cl_bpc);
605         le32_add_cpu(&fe->id1.bitmap1.i_used,
606                      (input->clusters - input->frees) * cl_bpc);
607         le32_add_cpu(&fe->i_clusters, input->clusters);
608
609         ocfs2_journal_dirty(handle, main_bm_bh);
610
611         spin_lock(&OCFS2_I(main_bm_inode)->ip_lock);
612         OCFS2_I(main_bm_inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
613         le64_add_cpu(&fe->i_size, input->clusters << osb->s_clustersize_bits);
614         spin_unlock(&OCFS2_I(main_bm_inode)->ip_lock);
615         i_size_write(main_bm_inode, le64_to_cpu(fe->i_size));
616
617         ocfs2_update_super_and_backups(main_bm_inode, input->clusters);
618
619 out_commit:
620         ocfs2_commit_trans(osb, handle);
621 out_unlock:
622         brelse(group_bh);
623         brelse(main_bm_bh);
624
625         ocfs2_inode_unlock(main_bm_inode, 1);
626
627 out_mutex:
628         mutex_unlock(&main_bm_inode->i_mutex);
629         iput(main_bm_inode);
630
631 out:
632         mlog_exit_void();
633         return ret;
634 }