Commit | Line | Data |
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328970de | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
fa60ce2c | 2 | /* |
d659072f TM |
3 | * resize.c |
4 | * | |
5 | * volume resize. | |
6 | * Inspired by ext3/resize.c. | |
7 | * | |
8 | * Copyright (C) 2007 Oracle. All rights reserved. | |
d659072f TM |
9 | */ |
10 | ||
11 | #include <linux/fs.h> | |
12 | #include <linux/types.h> | |
13 | ||
d659072f TM |
14 | #include <cluster/masklog.h> |
15 | ||
16 | #include "ocfs2.h" | |
17 | ||
18 | #include "alloc.h" | |
19 | #include "dlmglue.h" | |
20 | #include "inode.h" | |
21 | #include "journal.h" | |
22 | #include "super.h" | |
23 | #include "sysfile.h" | |
24 | #include "uptodate.h" | |
a5438702 | 25 | #include "ocfs2_trace.h" |
d659072f TM |
26 | |
27 | #include "buffer_head_io.h" | |
28 | #include "suballoc.h" | |
29 | #include "resize.h" | |
30 | ||
31 | /* | |
32 | * Check whether there are new backup superblocks exist | |
33 | * in the last group. If there are some, mark them or clear | |
34 | * them in the bitmap. | |
35 | * | |
36 | * Return how many backups we find in the last group. | |
37 | */ | |
38 | static u16 ocfs2_calc_new_backup_super(struct inode *inode, | |
39 | struct ocfs2_group_desc *gd, | |
d659072f | 40 | u16 cl_cpg, |
5c9ee4cb | 41 | u16 old_bg_clusters, |
d659072f TM |
42 | int set) |
43 | { | |
44 | int i; | |
45 | u16 backups = 0; | |
5c9ee4cb | 46 | u32 cluster, lgd_cluster; |
d659072f TM |
47 | u64 blkno, gd_blkno, lgd_blkno = le64_to_cpu(gd->bg_blkno); |
48 | ||
49 | for (i = 0; i < OCFS2_MAX_BACKUP_SUPERBLOCKS; i++) { | |
50 | blkno = ocfs2_backup_super_blkno(inode->i_sb, i); | |
51 | cluster = ocfs2_blocks_to_clusters(inode->i_sb, blkno); | |
52 | ||
53 | gd_blkno = ocfs2_which_cluster_group(inode, cluster); | |
54 | if (gd_blkno < lgd_blkno) | |
55 | continue; | |
56 | else if (gd_blkno > lgd_blkno) | |
57 | break; | |
58 | ||
5c9ee4cb JQ |
59 | /* check if already done backup super */ |
60 | lgd_cluster = ocfs2_blocks_to_clusters(inode->i_sb, lgd_blkno); | |
61 | lgd_cluster += old_bg_clusters; | |
62 | if (lgd_cluster >= cluster) | |
63 | continue; | |
64 | ||
d659072f TM |
65 | if (set) |
66 | ocfs2_set_bit(cluster % cl_cpg, | |
67 | (unsigned long *)gd->bg_bitmap); | |
68 | else | |
69 | ocfs2_clear_bit(cluster % cl_cpg, | |
70 | (unsigned long *)gd->bg_bitmap); | |
71 | backups++; | |
72 | } | |
73 | ||
d659072f TM |
74 | return backups; |
75 | } | |
76 | ||
77 | static int ocfs2_update_last_group_and_inode(handle_t *handle, | |
78 | struct inode *bm_inode, | |
79 | struct buffer_head *bm_bh, | |
80 | struct buffer_head *group_bh, | |
81 | u32 first_new_cluster, | |
82 | int new_clusters) | |
83 | { | |
84 | int ret = 0; | |
85 | struct ocfs2_super *osb = OCFS2_SB(bm_inode->i_sb); | |
86 | struct ocfs2_dinode *fe = (struct ocfs2_dinode *) bm_bh->b_data; | |
87 | struct ocfs2_chain_list *cl = &fe->id2.i_chain; | |
88 | struct ocfs2_chain_rec *cr; | |
89 | struct ocfs2_group_desc *group; | |
90 | u16 chain, num_bits, backups = 0; | |
91 | u16 cl_bpc = le16_to_cpu(cl->cl_bpc); | |
92 | u16 cl_cpg = le16_to_cpu(cl->cl_cpg); | |
5c9ee4cb | 93 | u16 old_bg_clusters; |
d659072f | 94 | |
a5438702 TM |
95 | trace_ocfs2_update_last_group_and_inode(new_clusters, |
96 | first_new_cluster); | |
d659072f | 97 | |
0cf2f763 JB |
98 | ret = ocfs2_journal_access_gd(handle, INODE_CACHE(bm_inode), |
99 | group_bh, OCFS2_JOURNAL_ACCESS_WRITE); | |
d659072f TM |
100 | if (ret < 0) { |
101 | mlog_errno(ret); | |
102 | goto out; | |
103 | } | |
104 | ||
105 | group = (struct ocfs2_group_desc *)group_bh->b_data; | |
106 | ||
5c9ee4cb | 107 | old_bg_clusters = le16_to_cpu(group->bg_bits) / cl_bpc; |
d659072f TM |
108 | /* update the group first. */ |
109 | num_bits = new_clusters * cl_bpc; | |
110 | le16_add_cpu(&group->bg_bits, num_bits); | |
111 | le16_add_cpu(&group->bg_free_bits_count, num_bits); | |
112 | ||
113 | /* | |
114 | * check whether there are some new backup superblocks exist in | |
115 | * this group and update the group bitmap accordingly. | |
116 | */ | |
117 | if (OCFS2_HAS_COMPAT_FEATURE(osb->sb, | |
118 | OCFS2_FEATURE_COMPAT_BACKUP_SB)) { | |
119 | backups = ocfs2_calc_new_backup_super(bm_inode, | |
120 | group, | |
5c9ee4cb | 121 | cl_cpg, old_bg_clusters, 1); |
d659072f TM |
122 | le16_add_cpu(&group->bg_free_bits_count, -1 * backups); |
123 | } | |
124 | ||
ec20cec7 | 125 | ocfs2_journal_dirty(handle, group_bh); |
d659072f TM |
126 | |
127 | /* update the inode accordingly. */ | |
0cf2f763 | 128 | ret = ocfs2_journal_access_di(handle, INODE_CACHE(bm_inode), bm_bh, |
13723d00 | 129 | OCFS2_JOURNAL_ACCESS_WRITE); |
d659072f TM |
130 | if (ret < 0) { |
131 | mlog_errno(ret); | |
132 | goto out_rollback; | |
133 | } | |
134 | ||
135 | chain = le16_to_cpu(group->bg_chain); | |
136 | cr = (&cl->cl_recs[chain]); | |
137 | le32_add_cpu(&cr->c_total, num_bits); | |
138 | le32_add_cpu(&cr->c_free, num_bits); | |
139 | le32_add_cpu(&fe->id1.bitmap1.i_total, num_bits); | |
140 | le32_add_cpu(&fe->i_clusters, new_clusters); | |
141 | ||
142 | if (backups) { | |
143 | le32_add_cpu(&cr->c_free, -1 * backups); | |
144 | le32_add_cpu(&fe->id1.bitmap1.i_used, backups); | |
145 | } | |
146 | ||
147 | spin_lock(&OCFS2_I(bm_inode)->ip_lock); | |
148 | OCFS2_I(bm_inode)->ip_clusters = le32_to_cpu(fe->i_clusters); | |
17bf1418 | 149 | le64_add_cpu(&fe->i_size, (u64)new_clusters << osb->s_clustersize_bits); |
d659072f TM |
150 | spin_unlock(&OCFS2_I(bm_inode)->ip_lock); |
151 | i_size_write(bm_inode, le64_to_cpu(fe->i_size)); | |
152 | ||
153 | ocfs2_journal_dirty(handle, bm_bh); | |
154 | ||
155 | out_rollback: | |
156 | if (ret < 0) { | |
157 | ocfs2_calc_new_backup_super(bm_inode, | |
158 | group, | |
5c9ee4cb | 159 | cl_cpg, old_bg_clusters, 0); |
d659072f TM |
160 | le16_add_cpu(&group->bg_free_bits_count, backups); |
161 | le16_add_cpu(&group->bg_bits, -1 * num_bits); | |
162 | le16_add_cpu(&group->bg_free_bits_count, -1 * num_bits); | |
163 | } | |
164 | out: | |
c1e8d35e TM |
165 | if (ret) |
166 | mlog_errno(ret); | |
d659072f TM |
167 | return ret; |
168 | } | |
169 | ||
170 | static int update_backups(struct inode * inode, u32 clusters, char *data) | |
171 | { | |
172 | int i, ret = 0; | |
173 | u32 cluster; | |
174 | u64 blkno; | |
175 | struct buffer_head *backup = NULL; | |
176 | struct ocfs2_dinode *backup_di = NULL; | |
177 | struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); | |
178 | ||
179 | /* calculate the real backups we need to update. */ | |
180 | for (i = 0; i < OCFS2_MAX_BACKUP_SUPERBLOCKS; i++) { | |
181 | blkno = ocfs2_backup_super_blkno(inode->i_sb, i); | |
182 | cluster = ocfs2_blocks_to_clusters(inode->i_sb, blkno); | |
584dca34 | 183 | if (cluster >= clusters) |
d659072f TM |
184 | break; |
185 | ||
da1e9098 | 186 | ret = ocfs2_read_blocks_sync(osb, blkno, 1, &backup); |
d659072f TM |
187 | if (ret < 0) { |
188 | mlog_errno(ret); | |
189 | break; | |
190 | } | |
191 | ||
192 | memcpy(backup->b_data, data, inode->i_sb->s_blocksize); | |
193 | ||
194 | backup_di = (struct ocfs2_dinode *)backup->b_data; | |
195 | backup_di->i_blkno = cpu_to_le64(blkno); | |
196 | ||
197 | ret = ocfs2_write_super_or_backup(osb, backup); | |
198 | brelse(backup); | |
199 | backup = NULL; | |
200 | if (ret < 0) { | |
201 | mlog_errno(ret); | |
202 | break; | |
203 | } | |
204 | } | |
205 | ||
206 | return ret; | |
207 | } | |
208 | ||
209 | static void ocfs2_update_super_and_backups(struct inode *inode, | |
210 | int new_clusters) | |
211 | { | |
212 | int ret; | |
213 | u32 clusters = 0; | |
214 | struct buffer_head *super_bh = NULL; | |
215 | struct ocfs2_dinode *super_di = NULL; | |
216 | struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); | |
217 | ||
218 | /* | |
219 | * update the superblock last. | |
220 | * It doesn't matter if the write failed. | |
221 | */ | |
da1e9098 JB |
222 | ret = ocfs2_read_blocks_sync(osb, OCFS2_SUPER_BLOCK_BLKNO, 1, |
223 | &super_bh); | |
d659072f TM |
224 | if (ret < 0) { |
225 | mlog_errno(ret); | |
226 | goto out; | |
227 | } | |
228 | ||
229 | super_di = (struct ocfs2_dinode *)super_bh->b_data; | |
230 | le32_add_cpu(&super_di->i_clusters, new_clusters); | |
231 | clusters = le32_to_cpu(super_di->i_clusters); | |
232 | ||
233 | ret = ocfs2_write_super_or_backup(osb, super_bh); | |
234 | if (ret < 0) { | |
235 | mlog_errno(ret); | |
236 | goto out; | |
237 | } | |
238 | ||
239 | if (OCFS2_HAS_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_COMPAT_BACKUP_SB)) | |
240 | ret = update_backups(inode, clusters, super_bh->b_data); | |
241 | ||
242 | out: | |
2fe5c1d7 | 243 | brelse(super_bh); |
d659072f TM |
244 | if (ret) |
245 | printk(KERN_WARNING "ocfs2: Failed to update super blocks on %s" | |
246 | " during fs resize. This condition is not fatal," | |
247 | " but fsck.ocfs2 should be run to fix it\n", | |
248 | osb->dev_str); | |
249 | return; | |
250 | } | |
251 | ||
252 | /* | |
253 | * Extend the filesystem to the new number of clusters specified. This entry | |
254 | * point is only used to extend the current filesystem to the end of the last | |
255 | * existing group. | |
256 | */ | |
257 | int ocfs2_group_extend(struct inode * inode, int new_clusters) | |
258 | { | |
259 | int ret; | |
260 | handle_t *handle; | |
261 | struct buffer_head *main_bm_bh = NULL; | |
262 | struct buffer_head *group_bh = NULL; | |
263 | struct inode *main_bm_inode = NULL; | |
264 | struct ocfs2_dinode *fe = NULL; | |
265 | struct ocfs2_group_desc *group = NULL; | |
266 | struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); | |
267 | u16 cl_bpc; | |
268 | u32 first_new_cluster; | |
269 | u64 lgd_blkno; | |
270 | ||
d659072f TM |
271 | if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb)) |
272 | return -EROFS; | |
273 | ||
274 | if (new_clusters < 0) | |
275 | return -EINVAL; | |
276 | else if (new_clusters == 0) | |
277 | return 0; | |
278 | ||
279 | main_bm_inode = ocfs2_get_system_file_inode(osb, | |
280 | GLOBAL_BITMAP_SYSTEM_INODE, | |
281 | OCFS2_INVALID_SLOT); | |
282 | if (!main_bm_inode) { | |
283 | ret = -EINVAL; | |
284 | mlog_errno(ret); | |
285 | goto out; | |
286 | } | |
287 | ||
5955102c | 288 | inode_lock(main_bm_inode); |
d659072f TM |
289 | |
290 | ret = ocfs2_inode_lock(main_bm_inode, &main_bm_bh, 1); | |
291 | if (ret < 0) { | |
292 | mlog_errno(ret); | |
293 | goto out_mutex; | |
294 | } | |
295 | ||
296 | fe = (struct ocfs2_dinode *)main_bm_bh->b_data; | |
297 | ||
10995aa2 JB |
298 | /* main_bm_bh is validated by inode read inside ocfs2_inode_lock(), |
299 | * so any corruption is a code bug. */ | |
300 | BUG_ON(!OCFS2_IS_VALID_DINODE(fe)); | |
301 | ||
d659072f | 302 | if (le16_to_cpu(fe->id2.i_chain.cl_cpg) != |
8571882c TM |
303 | ocfs2_group_bitmap_size(osb->sb, 0, |
304 | osb->s_feature_incompat) * 8) { | |
d659072f TM |
305 | mlog(ML_ERROR, "The disk is too old and small. " |
306 | "Force to do offline resize."); | |
307 | ret = -EINVAL; | |
308 | goto out_unlock; | |
d659072f TM |
309 | } |
310 | ||
311 | first_new_cluster = le32_to_cpu(fe->i_clusters); | |
312 | lgd_blkno = ocfs2_which_cluster_group(main_bm_inode, | |
313 | first_new_cluster - 1); | |
314 | ||
68f64d47 JB |
315 | ret = ocfs2_read_group_descriptor(main_bm_inode, fe, lgd_blkno, |
316 | &group_bh); | |
d659072f TM |
317 | if (ret < 0) { |
318 | mlog_errno(ret); | |
319 | goto out_unlock; | |
320 | } | |
d659072f TM |
321 | group = (struct ocfs2_group_desc *)group_bh->b_data; |
322 | ||
d659072f TM |
323 | cl_bpc = le16_to_cpu(fe->id2.i_chain.cl_bpc); |
324 | if (le16_to_cpu(group->bg_bits) / cl_bpc + new_clusters > | |
325 | le16_to_cpu(fe->id2.i_chain.cl_cpg)) { | |
326 | ret = -EINVAL; | |
327 | goto out_unlock; | |
328 | } | |
329 | ||
a5438702 TM |
330 | |
331 | trace_ocfs2_group_extend( | |
7909f2bf | 332 | (unsigned long long)le64_to_cpu(group->bg_blkno), new_clusters); |
d659072f TM |
333 | |
334 | handle = ocfs2_start_trans(osb, OCFS2_GROUP_EXTEND_CREDITS); | |
335 | if (IS_ERR(handle)) { | |
336 | mlog_errno(PTR_ERR(handle)); | |
337 | ret = -EINVAL; | |
338 | goto out_unlock; | |
339 | } | |
340 | ||
341 | /* update the last group descriptor and inode. */ | |
342 | ret = ocfs2_update_last_group_and_inode(handle, main_bm_inode, | |
343 | main_bm_bh, group_bh, | |
344 | first_new_cluster, | |
345 | new_clusters); | |
346 | if (ret) { | |
347 | mlog_errno(ret); | |
348 | goto out_commit; | |
349 | } | |
350 | ||
351 | ocfs2_update_super_and_backups(main_bm_inode, new_clusters); | |
352 | ||
353 | out_commit: | |
354 | ocfs2_commit_trans(osb, handle); | |
355 | out_unlock: | |
2fe5c1d7 MF |
356 | brelse(group_bh); |
357 | brelse(main_bm_bh); | |
d659072f TM |
358 | |
359 | ocfs2_inode_unlock(main_bm_inode, 1); | |
360 | ||
361 | out_mutex: | |
5955102c | 362 | inode_unlock(main_bm_inode); |
d659072f TM |
363 | iput(main_bm_inode); |
364 | ||
365 | out: | |
d659072f TM |
366 | return ret; |
367 | } | |
7909f2bf TM |
368 | |
369 | static int ocfs2_check_new_group(struct inode *inode, | |
370 | struct ocfs2_dinode *di, | |
371 | struct ocfs2_new_group_input *input, | |
372 | struct buffer_head *group_bh) | |
373 | { | |
374 | int ret; | |
57e3e797 JB |
375 | struct ocfs2_group_desc *gd = |
376 | (struct ocfs2_group_desc *)group_bh->b_data; | |
7909f2bf | 377 | u16 cl_bpc = le16_to_cpu(di->id2.i_chain.cl_bpc); |
7909f2bf | 378 | |
970e4936 | 379 | ret = ocfs2_check_group_descriptor(inode->i_sb, di, group_bh); |
57e3e797 JB |
380 | if (ret) |
381 | goto out; | |
7909f2bf | 382 | |
57e3e797 JB |
383 | ret = -EINVAL; |
384 | if (le16_to_cpu(gd->bg_chain) != input->chain) | |
7909f2bf TM |
385 | mlog(ML_ERROR, "Group descriptor # %llu has bad chain %u " |
386 | "while input has %u set.\n", | |
387 | (unsigned long long)le64_to_cpu(gd->bg_blkno), | |
388 | le16_to_cpu(gd->bg_chain), input->chain); | |
389 | else if (le16_to_cpu(gd->bg_bits) != input->clusters * cl_bpc) | |
390 | mlog(ML_ERROR, "Group descriptor # %llu has bit count %u but " | |
391 | "input has %u clusters set\n", | |
392 | (unsigned long long)le64_to_cpu(gd->bg_blkno), | |
393 | le16_to_cpu(gd->bg_bits), input->clusters); | |
394 | else if (le16_to_cpu(gd->bg_free_bits_count) != input->frees * cl_bpc) | |
395 | mlog(ML_ERROR, "Group descriptor # %llu has free bit count %u " | |
396 | "but it should have %u set\n", | |
397 | (unsigned long long)le64_to_cpu(gd->bg_blkno), | |
398 | le16_to_cpu(gd->bg_bits), | |
399 | input->frees * cl_bpc); | |
400 | else | |
401 | ret = 0; | |
402 | ||
57e3e797 | 403 | out: |
7909f2bf TM |
404 | return ret; |
405 | } | |
406 | ||
407 | static int ocfs2_verify_group_and_input(struct inode *inode, | |
408 | struct ocfs2_dinode *di, | |
409 | struct ocfs2_new_group_input *input, | |
410 | struct buffer_head *group_bh) | |
411 | { | |
412 | u16 cl_count = le16_to_cpu(di->id2.i_chain.cl_count); | |
413 | u16 cl_cpg = le16_to_cpu(di->id2.i_chain.cl_cpg); | |
414 | u16 next_free = le16_to_cpu(di->id2.i_chain.cl_next_free_rec); | |
415 | u32 cluster = ocfs2_blocks_to_clusters(inode->i_sb, input->group); | |
416 | u32 total_clusters = le32_to_cpu(di->i_clusters); | |
417 | int ret = -EINVAL; | |
418 | ||
419 | if (cluster < total_clusters) | |
420 | mlog(ML_ERROR, "add a group which is in the current volume.\n"); | |
421 | else if (input->chain >= cl_count) | |
422 | mlog(ML_ERROR, "input chain exceeds the limit.\n"); | |
423 | else if (next_free != cl_count && next_free != input->chain) | |
424 | mlog(ML_ERROR, | |
425 | "the add group should be in chain %u\n", next_free); | |
426 | else if (total_clusters + input->clusters < total_clusters) | |
427 | mlog(ML_ERROR, "add group's clusters overflow.\n"); | |
428 | else if (input->clusters > cl_cpg) | |
429 | mlog(ML_ERROR, "the cluster exceeds the maximum of a group\n"); | |
430 | else if (input->frees > input->clusters) | |
431 | mlog(ML_ERROR, "the free cluster exceeds the total clusters\n"); | |
432 | else if (total_clusters % cl_cpg != 0) | |
433 | mlog(ML_ERROR, | |
434 | "the last group isn't full. Use group extend first.\n"); | |
435 | else if (input->group != ocfs2_which_cluster_group(inode, cluster)) | |
436 | mlog(ML_ERROR, "group blkno is invalid\n"); | |
437 | else if ((ret = ocfs2_check_new_group(inode, di, input, group_bh))) | |
438 | mlog(ML_ERROR, "group descriptor check failed.\n"); | |
439 | else | |
440 | ret = 0; | |
441 | ||
442 | return ret; | |
443 | } | |
444 | ||
445 | /* Add a new group descriptor to global_bitmap. */ | |
446 | int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input) | |
447 | { | |
448 | int ret; | |
449 | handle_t *handle; | |
450 | struct buffer_head *main_bm_bh = NULL; | |
451 | struct inode *main_bm_inode = NULL; | |
452 | struct ocfs2_dinode *fe = NULL; | |
453 | struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); | |
454 | struct buffer_head *group_bh = NULL; | |
455 | struct ocfs2_group_desc *group = NULL; | |
456 | struct ocfs2_chain_list *cl; | |
457 | struct ocfs2_chain_rec *cr; | |
458 | u16 cl_bpc; | |
eedd40e1 | 459 | u64 bg_ptr; |
7909f2bf | 460 | |
7909f2bf TM |
461 | if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb)) |
462 | return -EROFS; | |
463 | ||
464 | main_bm_inode = ocfs2_get_system_file_inode(osb, | |
465 | GLOBAL_BITMAP_SYSTEM_INODE, | |
466 | OCFS2_INVALID_SLOT); | |
467 | if (!main_bm_inode) { | |
468 | ret = -EINVAL; | |
469 | mlog_errno(ret); | |
470 | goto out; | |
471 | } | |
472 | ||
5955102c | 473 | inode_lock(main_bm_inode); |
7909f2bf TM |
474 | |
475 | ret = ocfs2_inode_lock(main_bm_inode, &main_bm_bh, 1); | |
476 | if (ret < 0) { | |
477 | mlog_errno(ret); | |
478 | goto out_mutex; | |
479 | } | |
480 | ||
481 | fe = (struct ocfs2_dinode *)main_bm_bh->b_data; | |
482 | ||
483 | if (le16_to_cpu(fe->id2.i_chain.cl_cpg) != | |
8571882c TM |
484 | ocfs2_group_bitmap_size(osb->sb, 0, |
485 | osb->s_feature_incompat) * 8) { | |
7909f2bf TM |
486 | mlog(ML_ERROR, "The disk is too old and small." |
487 | " Force to do offline resize."); | |
488 | ret = -EINVAL; | |
489 | goto out_unlock; | |
490 | } | |
491 | ||
da1e9098 | 492 | ret = ocfs2_read_blocks_sync(osb, input->group, 1, &group_bh); |
7909f2bf TM |
493 | if (ret < 0) { |
494 | mlog(ML_ERROR, "Can't read the group descriptor # %llu " | |
495 | "from the device.", (unsigned long long)input->group); | |
496 | goto out_unlock; | |
497 | } | |
498 | ||
8cb471e8 | 499 | ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode), group_bh); |
7909f2bf TM |
500 | |
501 | ret = ocfs2_verify_group_and_input(main_bm_inode, fe, input, group_bh); | |
502 | if (ret) { | |
503 | mlog_errno(ret); | |
8abaae8d | 504 | goto out_free_group_bh; |
7909f2bf TM |
505 | } |
506 | ||
a5438702 TM |
507 | trace_ocfs2_group_add((unsigned long long)input->group, |
508 | input->chain, input->clusters, input->frees); | |
7909f2bf TM |
509 | |
510 | handle = ocfs2_start_trans(osb, OCFS2_GROUP_ADD_CREDITS); | |
511 | if (IS_ERR(handle)) { | |
512 | mlog_errno(PTR_ERR(handle)); | |
513 | ret = -EINVAL; | |
8abaae8d | 514 | goto out_free_group_bh; |
7909f2bf TM |
515 | } |
516 | ||
517 | cl_bpc = le16_to_cpu(fe->id2.i_chain.cl_bpc); | |
518 | cl = &fe->id2.i_chain; | |
519 | cr = &cl->cl_recs[input->chain]; | |
520 | ||
0cf2f763 JB |
521 | ret = ocfs2_journal_access_gd(handle, INODE_CACHE(main_bm_inode), |
522 | group_bh, OCFS2_JOURNAL_ACCESS_WRITE); | |
7909f2bf TM |
523 | if (ret < 0) { |
524 | mlog_errno(ret); | |
525 | goto out_commit; | |
526 | } | |
527 | ||
528 | group = (struct ocfs2_group_desc *)group_bh->b_data; | |
eedd40e1 | 529 | bg_ptr = le64_to_cpu(group->bg_next_group); |
7909f2bf | 530 | group->bg_next_group = cr->c_blkno; |
ec20cec7 | 531 | ocfs2_journal_dirty(handle, group_bh); |
7909f2bf | 532 | |
0cf2f763 JB |
533 | ret = ocfs2_journal_access_di(handle, INODE_CACHE(main_bm_inode), |
534 | main_bm_bh, OCFS2_JOURNAL_ACCESS_WRITE); | |
7909f2bf | 535 | if (ret < 0) { |
eedd40e1 | 536 | group->bg_next_group = cpu_to_le64(bg_ptr); |
7909f2bf TM |
537 | mlog_errno(ret); |
538 | goto out_commit; | |
539 | } | |
540 | ||
541 | if (input->chain == le16_to_cpu(cl->cl_next_free_rec)) { | |
542 | le16_add_cpu(&cl->cl_next_free_rec, 1); | |
543 | memset(cr, 0, sizeof(struct ocfs2_chain_rec)); | |
544 | } | |
545 | ||
4338ab6a | 546 | cr->c_blkno = cpu_to_le64(input->group); |
7909f2bf TM |
547 | le32_add_cpu(&cr->c_total, input->clusters * cl_bpc); |
548 | le32_add_cpu(&cr->c_free, input->frees * cl_bpc); | |
549 | ||
550 | le32_add_cpu(&fe->id1.bitmap1.i_total, input->clusters *cl_bpc); | |
551 | le32_add_cpu(&fe->id1.bitmap1.i_used, | |
552 | (input->clusters - input->frees) * cl_bpc); | |
553 | le32_add_cpu(&fe->i_clusters, input->clusters); | |
554 | ||
555 | ocfs2_journal_dirty(handle, main_bm_bh); | |
556 | ||
557 | spin_lock(&OCFS2_I(main_bm_inode)->ip_lock); | |
558 | OCFS2_I(main_bm_inode)->ip_clusters = le32_to_cpu(fe->i_clusters); | |
17bf1418 | 559 | le64_add_cpu(&fe->i_size, (u64)input->clusters << osb->s_clustersize_bits); |
7909f2bf TM |
560 | spin_unlock(&OCFS2_I(main_bm_inode)->ip_lock); |
561 | i_size_write(main_bm_inode, le64_to_cpu(fe->i_size)); | |
562 | ||
563 | ocfs2_update_super_and_backups(main_bm_inode, input->clusters); | |
564 | ||
565 | out_commit: | |
566 | ocfs2_commit_trans(osb, handle); | |
8abaae8d YL |
567 | |
568 | out_free_group_bh: | |
2fe5c1d7 | 569 | brelse(group_bh); |
8abaae8d YL |
570 | |
571 | out_unlock: | |
2fe5c1d7 | 572 | brelse(main_bm_bh); |
7909f2bf TM |
573 | |
574 | ocfs2_inode_unlock(main_bm_inode, 1); | |
575 | ||
576 | out_mutex: | |
5955102c | 577 | inode_unlock(main_bm_inode); |
7909f2bf TM |
578 | iput(main_bm_inode); |
579 | ||
580 | out: | |
7909f2bf TM |
581 | return ret; |
582 | } |