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