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-rw-r--r--fs/ocfs2/xattr.c2984
1 files changed, 1784 insertions, 1200 deletions
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 74d7367ade13..e1d638af6ac3 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -35,12 +35,14 @@
35#include <linux/init.h> 35#include <linux/init.h>
36#include <linux/module.h> 36#include <linux/module.h>
37#include <linux/string.h> 37#include <linux/string.h>
38#include <linux/security.h>
38 39
39#define MLOG_MASK_PREFIX ML_XATTR 40#define MLOG_MASK_PREFIX ML_XATTR
40#include <cluster/masklog.h> 41#include <cluster/masklog.h>
41 42
42#include "ocfs2.h" 43#include "ocfs2.h"
43#include "alloc.h" 44#include "alloc.h"
45#include "blockcheck.h"
44#include "dlmglue.h" 46#include "dlmglue.h"
45#include "file.h" 47#include "file.h"
46#include "symlink.h" 48#include "symlink.h"
@@ -61,12 +63,32 @@ struct ocfs2_xattr_def_value_root {
61}; 63};
62 64
63struct ocfs2_xattr_bucket { 65struct ocfs2_xattr_bucket {
64 struct buffer_head *bhs[OCFS2_XATTR_MAX_BLOCKS_PER_BUCKET]; 66 /* The inode these xattrs are associated with */
65 struct ocfs2_xattr_header *xh; 67 struct inode *bu_inode;
68
69 /* The actual buffers that make up the bucket */
70 struct buffer_head *bu_bhs[OCFS2_XATTR_MAX_BLOCKS_PER_BUCKET];
71
72 /* How many blocks make up one bucket for this filesystem */
73 int bu_blocks;
74};
75
76struct ocfs2_xattr_set_ctxt {
77 handle_t *handle;
78 struct ocfs2_alloc_context *meta_ac;
79 struct ocfs2_alloc_context *data_ac;
80 struct ocfs2_cached_dealloc_ctxt dealloc;
66}; 81};
67 82
68#define OCFS2_XATTR_ROOT_SIZE (sizeof(struct ocfs2_xattr_def_value_root)) 83#define OCFS2_XATTR_ROOT_SIZE (sizeof(struct ocfs2_xattr_def_value_root))
69#define OCFS2_XATTR_INLINE_SIZE 80 84#define OCFS2_XATTR_INLINE_SIZE 80
85#define OCFS2_XATTR_FREE_IN_IBODY (OCFS2_MIN_XATTR_INLINE_SIZE \
86 - sizeof(struct ocfs2_xattr_header) \
87 - sizeof(__u32))
88#define OCFS2_XATTR_FREE_IN_BLOCK(ptr) ((ptr)->i_sb->s_blocksize \
89 - sizeof(struct ocfs2_xattr_block) \
90 - sizeof(struct ocfs2_xattr_header) \
91 - sizeof(__u32))
70 92
71static struct ocfs2_xattr_def_value_root def_xv = { 93static struct ocfs2_xattr_def_value_root def_xv = {
72 .xv.xr_list.l_count = cpu_to_le16(1), 94 .xv.xr_list.l_count = cpu_to_le16(1),
@@ -74,13 +96,25 @@ static struct ocfs2_xattr_def_value_root def_xv = {
74 96
75struct xattr_handler *ocfs2_xattr_handlers[] = { 97struct xattr_handler *ocfs2_xattr_handlers[] = {
76 &ocfs2_xattr_user_handler, 98 &ocfs2_xattr_user_handler,
99#ifdef CONFIG_OCFS2_FS_POSIX_ACL
100 &ocfs2_xattr_acl_access_handler,
101 &ocfs2_xattr_acl_default_handler,
102#endif
77 &ocfs2_xattr_trusted_handler, 103 &ocfs2_xattr_trusted_handler,
104 &ocfs2_xattr_security_handler,
78 NULL 105 NULL
79}; 106};
80 107
81static struct xattr_handler *ocfs2_xattr_handler_map[OCFS2_XATTR_MAX] = { 108static struct xattr_handler *ocfs2_xattr_handler_map[OCFS2_XATTR_MAX] = {
82 [OCFS2_XATTR_INDEX_USER] = &ocfs2_xattr_user_handler, 109 [OCFS2_XATTR_INDEX_USER] = &ocfs2_xattr_user_handler,
110#ifdef CONFIG_OCFS2_FS_POSIX_ACL
111 [OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS]
112 = &ocfs2_xattr_acl_access_handler,
113 [OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT]
114 = &ocfs2_xattr_acl_default_handler,
115#endif
83 [OCFS2_XATTR_INDEX_TRUSTED] = &ocfs2_xattr_trusted_handler, 116 [OCFS2_XATTR_INDEX_TRUSTED] = &ocfs2_xattr_trusted_handler,
117 [OCFS2_XATTR_INDEX_SECURITY] = &ocfs2_xattr_security_handler,
84}; 118};
85 119
86struct ocfs2_xattr_info { 120struct ocfs2_xattr_info {
@@ -98,7 +132,7 @@ struct ocfs2_xattr_search {
98 */ 132 */
99 struct buffer_head *xattr_bh; 133 struct buffer_head *xattr_bh;
100 struct ocfs2_xattr_header *header; 134 struct ocfs2_xattr_header *header;
101 struct ocfs2_xattr_bucket bucket; 135 struct ocfs2_xattr_bucket *bucket;
102 void *base; 136 void *base;
103 void *end; 137 void *end;
104 struct ocfs2_xattr_entry *here; 138 struct ocfs2_xattr_entry *here;
@@ -127,14 +161,20 @@ static int ocfs2_xattr_tree_list_index_block(struct inode *inode,
127 size_t buffer_size); 161 size_t buffer_size);
128 162
129static int ocfs2_xattr_create_index_block(struct inode *inode, 163static int ocfs2_xattr_create_index_block(struct inode *inode,
130 struct ocfs2_xattr_search *xs); 164 struct ocfs2_xattr_search *xs,
165 struct ocfs2_xattr_set_ctxt *ctxt);
131 166
132static int ocfs2_xattr_set_entry_index_block(struct inode *inode, 167static int ocfs2_xattr_set_entry_index_block(struct inode *inode,
133 struct ocfs2_xattr_info *xi, 168 struct ocfs2_xattr_info *xi,
134 struct ocfs2_xattr_search *xs); 169 struct ocfs2_xattr_search *xs,
170 struct ocfs2_xattr_set_ctxt *ctxt);
135 171
136static int ocfs2_delete_xattr_index_block(struct inode *inode, 172static int ocfs2_delete_xattr_index_block(struct inode *inode,
137 struct buffer_head *xb_bh); 173 struct buffer_head *xb_bh);
174static int ocfs2_mv_xattr_buckets(struct inode *inode, handle_t *handle,
175 u64 src_blk, u64 last_blk, u64 to_blk,
176 unsigned int start_bucket,
177 u32 *first_hash);
138 178
139static inline u16 ocfs2_xattr_buckets_per_cluster(struct ocfs2_super *osb) 179static inline u16 ocfs2_xattr_buckets_per_cluster(struct ocfs2_super *osb)
140{ 180{
@@ -154,6 +194,216 @@ static inline u16 ocfs2_xattr_max_xe_in_bucket(struct super_block *sb)
154 return len / sizeof(struct ocfs2_xattr_entry); 194 return len / sizeof(struct ocfs2_xattr_entry);
155} 195}
156 196
197#define bucket_blkno(_b) ((_b)->bu_bhs[0]->b_blocknr)
198#define bucket_block(_b, _n) ((_b)->bu_bhs[(_n)]->b_data)
199#define bucket_xh(_b) ((struct ocfs2_xattr_header *)bucket_block((_b), 0))
200
201static struct ocfs2_xattr_bucket *ocfs2_xattr_bucket_new(struct inode *inode)
202{
203 struct ocfs2_xattr_bucket *bucket;
204 int blks = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
205
206 BUG_ON(blks > OCFS2_XATTR_MAX_BLOCKS_PER_BUCKET);
207
208 bucket = kzalloc(sizeof(struct ocfs2_xattr_bucket), GFP_NOFS);
209 if (bucket) {
210 bucket->bu_inode = inode;
211 bucket->bu_blocks = blks;
212 }
213
214 return bucket;
215}
216
217static void ocfs2_xattr_bucket_relse(struct ocfs2_xattr_bucket *bucket)
218{
219 int i;
220
221 for (i = 0; i < bucket->bu_blocks; i++) {
222 brelse(bucket->bu_bhs[i]);
223 bucket->bu_bhs[i] = NULL;
224 }
225}
226
227static void ocfs2_xattr_bucket_free(struct ocfs2_xattr_bucket *bucket)
228{
229 if (bucket) {
230 ocfs2_xattr_bucket_relse(bucket);
231 bucket->bu_inode = NULL;
232 kfree(bucket);
233 }
234}
235
236/*
237 * A bucket that has never been written to disk doesn't need to be
238 * read. We just need the buffer_heads. Don't call this for
239 * buckets that are already on disk. ocfs2_read_xattr_bucket() initializes
240 * them fully.
241 */
242static int ocfs2_init_xattr_bucket(struct ocfs2_xattr_bucket *bucket,
243 u64 xb_blkno)
244{
245 int i, rc = 0;
246
247 for (i = 0; i < bucket->bu_blocks; i++) {
248 bucket->bu_bhs[i] = sb_getblk(bucket->bu_inode->i_sb,
249 xb_blkno + i);
250 if (!bucket->bu_bhs[i]) {
251 rc = -EIO;
252 mlog_errno(rc);
253 break;
254 }
255
256 if (!ocfs2_buffer_uptodate(bucket->bu_inode,
257 bucket->bu_bhs[i]))
258 ocfs2_set_new_buffer_uptodate(bucket->bu_inode,
259 bucket->bu_bhs[i]);
260 }
261
262 if (rc)
263 ocfs2_xattr_bucket_relse(bucket);
264 return rc;
265}
266
267/* Read the xattr bucket at xb_blkno */
268static int ocfs2_read_xattr_bucket(struct ocfs2_xattr_bucket *bucket,
269 u64 xb_blkno)
270{
271 int rc;
272
273 rc = ocfs2_read_blocks(bucket->bu_inode, xb_blkno,
274 bucket->bu_blocks, bucket->bu_bhs, 0,
275 NULL);
276 if (!rc) {
277 rc = ocfs2_validate_meta_ecc_bhs(bucket->bu_inode->i_sb,
278 bucket->bu_bhs,
279 bucket->bu_blocks,
280 &bucket_xh(bucket)->xh_check);
281 if (rc)
282 mlog_errno(rc);
283 }
284
285 if (rc)
286 ocfs2_xattr_bucket_relse(bucket);
287 return rc;
288}
289
290static int ocfs2_xattr_bucket_journal_access(handle_t *handle,
291 struct ocfs2_xattr_bucket *bucket,
292 int type)
293{
294 int i, rc = 0;
295
296 for (i = 0; i < bucket->bu_blocks; i++) {
297 rc = ocfs2_journal_access(handle, bucket->bu_inode,
298 bucket->bu_bhs[i], type);
299 if (rc) {
300 mlog_errno(rc);
301 break;
302 }
303 }
304
305 return rc;
306}
307
308static void ocfs2_xattr_bucket_journal_dirty(handle_t *handle,
309 struct ocfs2_xattr_bucket *bucket)
310{
311 int i;
312
313 ocfs2_compute_meta_ecc_bhs(bucket->bu_inode->i_sb,
314 bucket->bu_bhs, bucket->bu_blocks,
315 &bucket_xh(bucket)->xh_check);
316
317 for (i = 0; i < bucket->bu_blocks; i++)
318 ocfs2_journal_dirty(handle, bucket->bu_bhs[i]);
319}
320
321static void ocfs2_xattr_bucket_copy_data(struct ocfs2_xattr_bucket *dest,
322 struct ocfs2_xattr_bucket *src)
323{
324 int i;
325 int blocksize = src->bu_inode->i_sb->s_blocksize;
326
327 BUG_ON(dest->bu_blocks != src->bu_blocks);
328 BUG_ON(dest->bu_inode != src->bu_inode);
329
330 for (i = 0; i < src->bu_blocks; i++) {
331 memcpy(bucket_block(dest, i), bucket_block(src, i),
332 blocksize);
333 }
334}
335
336static int ocfs2_validate_xattr_block(struct super_block *sb,
337 struct buffer_head *bh)
338{
339 int rc;
340 struct ocfs2_xattr_block *xb =
341 (struct ocfs2_xattr_block *)bh->b_data;
342
343 mlog(0, "Validating xattr block %llu\n",
344 (unsigned long long)bh->b_blocknr);
345
346 BUG_ON(!buffer_uptodate(bh));
347
348 /*
349 * If the ecc fails, we return the error but otherwise
350 * leave the filesystem running. We know any error is
351 * local to this block.
352 */
353 rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &xb->xb_check);
354 if (rc)
355 return rc;
356
357 /*
358 * Errors after here are fatal
359 */
360
361 if (!OCFS2_IS_VALID_XATTR_BLOCK(xb)) {
362 ocfs2_error(sb,
363 "Extended attribute block #%llu has bad "
364 "signature %.*s",
365 (unsigned long long)bh->b_blocknr, 7,
366 xb->xb_signature);
367 return -EINVAL;
368 }
369
370 if (le64_to_cpu(xb->xb_blkno) != bh->b_blocknr) {
371 ocfs2_error(sb,
372 "Extended attribute block #%llu has an "
373 "invalid xb_blkno of %llu",
374 (unsigned long long)bh->b_blocknr,
375 (unsigned long long)le64_to_cpu(xb->xb_blkno));
376 return -EINVAL;
377 }
378
379 if (le32_to_cpu(xb->xb_fs_generation) != OCFS2_SB(sb)->fs_generation) {
380 ocfs2_error(sb,
381 "Extended attribute block #%llu has an invalid "
382 "xb_fs_generation of #%u",
383 (unsigned long long)bh->b_blocknr,
384 le32_to_cpu(xb->xb_fs_generation));
385 return -EINVAL;
386 }
387
388 return 0;
389}
390
391static int ocfs2_read_xattr_block(struct inode *inode, u64 xb_blkno,
392 struct buffer_head **bh)
393{
394 int rc;
395 struct buffer_head *tmp = *bh;
396
397 rc = ocfs2_read_block(inode, xb_blkno, &tmp,
398 ocfs2_validate_xattr_block);
399
400 /* If ocfs2_read_block() got us a new bh, pass it up. */
401 if (!rc && !*bh)
402 *bh = tmp;
403
404 return rc;
405}
406
157static inline const char *ocfs2_xattr_prefix(int name_index) 407static inline const char *ocfs2_xattr_prefix(int name_index)
158{ 408{
159 struct xattr_handler *handler = NULL; 409 struct xattr_handler *handler = NULL;
@@ -200,54 +450,163 @@ static void ocfs2_xattr_hash_entry(struct inode *inode,
200 return; 450 return;
201} 451}
202 452
453static int ocfs2_xattr_entry_real_size(int name_len, size_t value_len)
454{
455 int size = 0;
456
457 if (value_len <= OCFS2_XATTR_INLINE_SIZE)
458 size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_SIZE(value_len);
459 else
460 size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_ROOT_SIZE;
461 size += sizeof(struct ocfs2_xattr_entry);
462
463 return size;
464}
465
466int ocfs2_calc_security_init(struct inode *dir,
467 struct ocfs2_security_xattr_info *si,
468 int *want_clusters,
469 int *xattr_credits,
470 struct ocfs2_alloc_context **xattr_ac)
471{
472 int ret = 0;
473 struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
474 int s_size = ocfs2_xattr_entry_real_size(strlen(si->name),
475 si->value_len);
476
477 /*
478 * The max space of security xattr taken inline is
479 * 256(name) + 80(value) + 16(entry) = 352 bytes,
480 * So reserve one metadata block for it is ok.
481 */
482 if (dir->i_sb->s_blocksize == OCFS2_MIN_BLOCKSIZE ||
483 s_size > OCFS2_XATTR_FREE_IN_IBODY) {
484 ret = ocfs2_reserve_new_metadata_blocks(osb, 1, xattr_ac);
485 if (ret) {
486 mlog_errno(ret);
487 return ret;
488 }
489 *xattr_credits += OCFS2_XATTR_BLOCK_CREATE_CREDITS;
490 }
491
492 /* reserve clusters for xattr value which will be set in B tree*/
493 if (si->value_len > OCFS2_XATTR_INLINE_SIZE) {
494 int new_clusters = ocfs2_clusters_for_bytes(dir->i_sb,
495 si->value_len);
496
497 *xattr_credits += ocfs2_clusters_to_blocks(dir->i_sb,
498 new_clusters);
499 *want_clusters += new_clusters;
500 }
501 return ret;
502}
503
504int ocfs2_calc_xattr_init(struct inode *dir,
505 struct buffer_head *dir_bh,
506 int mode,
507 struct ocfs2_security_xattr_info *si,
508 int *want_clusters,
509 int *xattr_credits,
510 struct ocfs2_alloc_context **xattr_ac)
511{
512 int ret = 0;
513 struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
514 int s_size = 0, a_size = 0, acl_len = 0, new_clusters;
515
516 if (si->enable)
517 s_size = ocfs2_xattr_entry_real_size(strlen(si->name),
518 si->value_len);
519
520 if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) {
521 acl_len = ocfs2_xattr_get_nolock(dir, dir_bh,
522 OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT,
523 "", NULL, 0);
524 if (acl_len > 0) {
525 a_size = ocfs2_xattr_entry_real_size(0, acl_len);
526 if (S_ISDIR(mode))
527 a_size <<= 1;
528 } else if (acl_len != 0 && acl_len != -ENODATA) {
529 mlog_errno(ret);
530 return ret;
531 }
532 }
533
534 if (!(s_size + a_size))
535 return ret;
536
537 /*
538 * The max space of security xattr taken inline is
539 * 256(name) + 80(value) + 16(entry) = 352 bytes,
540 * The max space of acl xattr taken inline is
541 * 80(value) + 16(entry) * 2(if directory) = 192 bytes,
542 * when blocksize = 512, may reserve one more cluser for
543 * xattr bucket, otherwise reserve one metadata block
544 * for them is ok.
545 */
546 if (dir->i_sb->s_blocksize == OCFS2_MIN_BLOCKSIZE ||
547 (s_size + a_size) > OCFS2_XATTR_FREE_IN_IBODY) {
548 ret = ocfs2_reserve_new_metadata_blocks(osb, 1, xattr_ac);
549 if (ret) {
550 mlog_errno(ret);
551 return ret;
552 }
553 *xattr_credits += OCFS2_XATTR_BLOCK_CREATE_CREDITS;
554 }
555
556 if (dir->i_sb->s_blocksize == OCFS2_MIN_BLOCKSIZE &&
557 (s_size + a_size) > OCFS2_XATTR_FREE_IN_BLOCK(dir)) {
558 *want_clusters += 1;
559 *xattr_credits += ocfs2_blocks_per_xattr_bucket(dir->i_sb);
560 }
561
562 /*
563 * reserve credits and clusters for xattrs which has large value
564 * and have to be set outside
565 */
566 if (si->enable && si->value_len > OCFS2_XATTR_INLINE_SIZE) {
567 new_clusters = ocfs2_clusters_for_bytes(dir->i_sb,
568 si->value_len);
569 *xattr_credits += ocfs2_clusters_to_blocks(dir->i_sb,
570 new_clusters);
571 *want_clusters += new_clusters;
572 }
573 if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL &&
574 acl_len > OCFS2_XATTR_INLINE_SIZE) {
575 /* for directory, it has DEFAULT and ACCESS two types of acls */
576 new_clusters = (S_ISDIR(mode) ? 2 : 1) *
577 ocfs2_clusters_for_bytes(dir->i_sb, acl_len);
578 *xattr_credits += ocfs2_clusters_to_blocks(dir->i_sb,
579 new_clusters);
580 *want_clusters += new_clusters;
581 }
582
583 return ret;
584}
585
203static int ocfs2_xattr_extend_allocation(struct inode *inode, 586static int ocfs2_xattr_extend_allocation(struct inode *inode,
204 u32 clusters_to_add, 587 u32 clusters_to_add,
205 struct buffer_head *xattr_bh, 588 struct ocfs2_xattr_value_buf *vb,
206 struct ocfs2_xattr_value_root *xv) 589 struct ocfs2_xattr_set_ctxt *ctxt)
207{ 590{
208 int status = 0; 591 int status = 0;
209 int restart_func = 0; 592 handle_t *handle = ctxt->handle;
210 int credits = 0;
211 handle_t *handle = NULL;
212 struct ocfs2_alloc_context *data_ac = NULL;
213 struct ocfs2_alloc_context *meta_ac = NULL;
214 enum ocfs2_alloc_restarted why; 593 enum ocfs2_alloc_restarted why;
215 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); 594 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
216 u32 prev_clusters, logical_start = le32_to_cpu(xv->xr_clusters); 595 u32 prev_clusters, logical_start = le32_to_cpu(vb->vb_xv->xr_clusters);
217 struct ocfs2_extent_tree et; 596 struct ocfs2_extent_tree et;
218 597
219 mlog(0, "(clusters_to_add for xattr= %u)\n", clusters_to_add); 598 mlog(0, "(clusters_to_add for xattr= %u)\n", clusters_to_add);
220 599
221 ocfs2_init_xattr_value_extent_tree(&et, inode, xattr_bh, xv); 600 ocfs2_init_xattr_value_extent_tree(&et, inode, vb);
222
223restart_all:
224
225 status = ocfs2_lock_allocators(inode, &et, clusters_to_add, 0,
226 &data_ac, &meta_ac);
227 if (status) {
228 mlog_errno(status);
229 goto leave;
230 }
231
232 credits = ocfs2_calc_extend_credits(osb->sb, et.et_root_el,
233 clusters_to_add);
234 handle = ocfs2_start_trans(osb, credits);
235 if (IS_ERR(handle)) {
236 status = PTR_ERR(handle);
237 handle = NULL;
238 mlog_errno(status);
239 goto leave;
240 }
241 601
242restarted_transaction: 602 status = vb->vb_access(handle, inode, vb->vb_bh,
243 status = ocfs2_journal_access(handle, inode, xattr_bh, 603 OCFS2_JOURNAL_ACCESS_WRITE);
244 OCFS2_JOURNAL_ACCESS_WRITE);
245 if (status < 0) { 604 if (status < 0) {
246 mlog_errno(status); 605 mlog_errno(status);
247 goto leave; 606 goto leave;
248 } 607 }
249 608
250 prev_clusters = le32_to_cpu(xv->xr_clusters); 609 prev_clusters = le32_to_cpu(vb->vb_xv->xr_clusters);
251 status = ocfs2_add_clusters_in_btree(osb, 610 status = ocfs2_add_clusters_in_btree(osb,
252 inode, 611 inode,
253 &logical_start, 612 &logical_start,
@@ -255,157 +614,84 @@ restarted_transaction:
255 0, 614 0,
256 &et, 615 &et,
257 handle, 616 handle,
258 data_ac, 617 ctxt->data_ac,
259 meta_ac, 618 ctxt->meta_ac,
260 &why); 619 &why);
261 if ((status < 0) && (status != -EAGAIN)) { 620 if (status < 0) {
262 if (status != -ENOSPC) 621 mlog_errno(status);
263 mlog_errno(status);
264 goto leave; 622 goto leave;
265 } 623 }
266 624
267 status = ocfs2_journal_dirty(handle, xattr_bh); 625 status = ocfs2_journal_dirty(handle, vb->vb_bh);
268 if (status < 0) { 626 if (status < 0) {
269 mlog_errno(status); 627 mlog_errno(status);
270 goto leave; 628 goto leave;
271 } 629 }
272 630
273 clusters_to_add -= le32_to_cpu(xv->xr_clusters) - prev_clusters; 631 clusters_to_add -= le32_to_cpu(vb->vb_xv->xr_clusters) - prev_clusters;
274 632
275 if (why != RESTART_NONE && clusters_to_add) { 633 /*
276 if (why == RESTART_META) { 634 * We should have already allocated enough space before the transaction,
277 mlog(0, "restarting function.\n"); 635 * so no need to restart.
278 restart_func = 1; 636 */
279 } else { 637 BUG_ON(why != RESTART_NONE || clusters_to_add);
280 BUG_ON(why != RESTART_TRANS);
281
282 mlog(0, "restarting transaction.\n");
283 /* TODO: This can be more intelligent. */
284 credits = ocfs2_calc_extend_credits(osb->sb,
285 et.et_root_el,
286 clusters_to_add);
287 status = ocfs2_extend_trans(handle, credits);
288 if (status < 0) {
289 /* handle still has to be committed at
290 * this point. */
291 status = -ENOMEM;
292 mlog_errno(status);
293 goto leave;
294 }
295 goto restarted_transaction;
296 }
297 }
298 638
299leave: 639leave:
300 if (handle) {
301 ocfs2_commit_trans(osb, handle);
302 handle = NULL;
303 }
304 if (data_ac) {
305 ocfs2_free_alloc_context(data_ac);
306 data_ac = NULL;
307 }
308 if (meta_ac) {
309 ocfs2_free_alloc_context(meta_ac);
310 meta_ac = NULL;
311 }
312 if ((!status) && restart_func) {
313 restart_func = 0;
314 goto restart_all;
315 }
316 640
317 return status; 641 return status;
318} 642}
319 643
320static int __ocfs2_remove_xattr_range(struct inode *inode, 644static int __ocfs2_remove_xattr_range(struct inode *inode,
321 struct buffer_head *root_bh, 645 struct ocfs2_xattr_value_buf *vb,
322 struct ocfs2_xattr_value_root *xv,
323 u32 cpos, u32 phys_cpos, u32 len, 646 u32 cpos, u32 phys_cpos, u32 len,
324 struct ocfs2_cached_dealloc_ctxt *dealloc) 647 struct ocfs2_xattr_set_ctxt *ctxt)
325{ 648{
326 int ret; 649 int ret;
327 u64 phys_blkno = ocfs2_clusters_to_blocks(inode->i_sb, phys_cpos); 650 u64 phys_blkno = ocfs2_clusters_to_blocks(inode->i_sb, phys_cpos);
328 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); 651 handle_t *handle = ctxt->handle;
329 struct inode *tl_inode = osb->osb_tl_inode;
330 handle_t *handle;
331 struct ocfs2_alloc_context *meta_ac = NULL;
332 struct ocfs2_extent_tree et; 652 struct ocfs2_extent_tree et;
333 653
334 ocfs2_init_xattr_value_extent_tree(&et, inode, root_bh, xv); 654 ocfs2_init_xattr_value_extent_tree(&et, inode, vb);
335 655
336 ret = ocfs2_lock_allocators(inode, &et, 0, 1, NULL, &meta_ac); 656 ret = vb->vb_access(handle, inode, vb->vb_bh,
657 OCFS2_JOURNAL_ACCESS_WRITE);
337 if (ret) { 658 if (ret) {
338 mlog_errno(ret); 659 mlog_errno(ret);
339 return ret;
340 }
341
342 mutex_lock(&tl_inode->i_mutex);
343
344 if (ocfs2_truncate_log_needs_flush(osb)) {
345 ret = __ocfs2_flush_truncate_log(osb);
346 if (ret < 0) {
347 mlog_errno(ret);
348 goto out;
349 }
350 }
351
352 handle = ocfs2_start_trans(osb, OCFS2_REMOVE_EXTENT_CREDITS);
353 if (IS_ERR(handle)) {
354 ret = PTR_ERR(handle);
355 mlog_errno(ret);
356 goto out; 660 goto out;
357 } 661 }
358 662
359 ret = ocfs2_journal_access(handle, inode, root_bh, 663 ret = ocfs2_remove_extent(inode, &et, cpos, len, handle, ctxt->meta_ac,
360 OCFS2_JOURNAL_ACCESS_WRITE); 664 &ctxt->dealloc);
361 if (ret) {
362 mlog_errno(ret);
363 goto out_commit;
364 }
365
366 ret = ocfs2_remove_extent(inode, &et, cpos, len, handle, meta_ac,
367 dealloc);
368 if (ret) { 665 if (ret) {
369 mlog_errno(ret); 666 mlog_errno(ret);
370 goto out_commit; 667 goto out;
371 } 668 }
372 669
373 le32_add_cpu(&xv->xr_clusters, -len); 670 le32_add_cpu(&vb->vb_xv->xr_clusters, -len);
374 671
375 ret = ocfs2_journal_dirty(handle, root_bh); 672 ret = ocfs2_journal_dirty(handle, vb->vb_bh);
376 if (ret) { 673 if (ret) {
377 mlog_errno(ret); 674 mlog_errno(ret);
378 goto out_commit; 675 goto out;
379 } 676 }
380 677
381 ret = ocfs2_truncate_log_append(osb, handle, phys_blkno, len); 678 ret = ocfs2_cache_cluster_dealloc(&ctxt->dealloc, phys_blkno, len);
382 if (ret) 679 if (ret)
383 mlog_errno(ret); 680 mlog_errno(ret);
384 681
385out_commit:
386 ocfs2_commit_trans(osb, handle);
387out: 682out:
388 mutex_unlock(&tl_inode->i_mutex);
389
390 if (meta_ac)
391 ocfs2_free_alloc_context(meta_ac);
392
393 return ret; 683 return ret;
394} 684}
395 685
396static int ocfs2_xattr_shrink_size(struct inode *inode, 686static int ocfs2_xattr_shrink_size(struct inode *inode,
397 u32 old_clusters, 687 u32 old_clusters,
398 u32 new_clusters, 688 u32 new_clusters,
399 struct buffer_head *root_bh, 689 struct ocfs2_xattr_value_buf *vb,
400 struct ocfs2_xattr_value_root *xv) 690 struct ocfs2_xattr_set_ctxt *ctxt)
401{ 691{
402 int ret = 0; 692 int ret = 0;
403 u32 trunc_len, cpos, phys_cpos, alloc_size; 693 u32 trunc_len, cpos, phys_cpos, alloc_size;
404 u64 block; 694 u64 block;
405 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
406 struct ocfs2_cached_dealloc_ctxt dealloc;
407
408 ocfs2_init_dealloc_ctxt(&dealloc);
409 695
410 if (old_clusters <= new_clusters) 696 if (old_clusters <= new_clusters)
411 return 0; 697 return 0;
@@ -414,7 +700,8 @@ static int ocfs2_xattr_shrink_size(struct inode *inode,
414 trunc_len = old_clusters - new_clusters; 700 trunc_len = old_clusters - new_clusters;
415 while (trunc_len) { 701 while (trunc_len) {
416 ret = ocfs2_xattr_get_clusters(inode, cpos, &phys_cpos, 702 ret = ocfs2_xattr_get_clusters(inode, cpos, &phys_cpos,
417 &alloc_size, &xv->xr_list); 703 &alloc_size,
704 &vb->vb_xv->xr_list);
418 if (ret) { 705 if (ret) {
419 mlog_errno(ret); 706 mlog_errno(ret);
420 goto out; 707 goto out;
@@ -423,9 +710,9 @@ static int ocfs2_xattr_shrink_size(struct inode *inode,
423 if (alloc_size > trunc_len) 710 if (alloc_size > trunc_len)
424 alloc_size = trunc_len; 711 alloc_size = trunc_len;
425 712
426 ret = __ocfs2_remove_xattr_range(inode, root_bh, xv, cpos, 713 ret = __ocfs2_remove_xattr_range(inode, vb, cpos,
427 phys_cpos, alloc_size, 714 phys_cpos, alloc_size,
428 &dealloc); 715 ctxt);
429 if (ret) { 716 if (ret) {
430 mlog_errno(ret); 717 mlog_errno(ret);
431 goto out; 718 goto out;
@@ -439,20 +726,17 @@ static int ocfs2_xattr_shrink_size(struct inode *inode,
439 } 726 }
440 727
441out: 728out:
442 ocfs2_schedule_truncate_log_flush(osb, 1);
443 ocfs2_run_deallocs(osb, &dealloc);
444
445 return ret; 729 return ret;
446} 730}
447 731
448static int ocfs2_xattr_value_truncate(struct inode *inode, 732static int ocfs2_xattr_value_truncate(struct inode *inode,
449 struct buffer_head *root_bh, 733 struct ocfs2_xattr_value_buf *vb,
450 struct ocfs2_xattr_value_root *xv, 734 int len,
451 int len) 735 struct ocfs2_xattr_set_ctxt *ctxt)
452{ 736{
453 int ret; 737 int ret;
454 u32 new_clusters = ocfs2_clusters_for_bytes(inode->i_sb, len); 738 u32 new_clusters = ocfs2_clusters_for_bytes(inode->i_sb, len);
455 u32 old_clusters = le32_to_cpu(xv->xr_clusters); 739 u32 old_clusters = le32_to_cpu(vb->vb_xv->xr_clusters);
456 740
457 if (new_clusters == old_clusters) 741 if (new_clusters == old_clusters)
458 return 0; 742 return 0;
@@ -460,11 +744,11 @@ static int ocfs2_xattr_value_truncate(struct inode *inode,
460 if (new_clusters > old_clusters) 744 if (new_clusters > old_clusters)
461 ret = ocfs2_xattr_extend_allocation(inode, 745 ret = ocfs2_xattr_extend_allocation(inode,
462 new_clusters - old_clusters, 746 new_clusters - old_clusters,
463 root_bh, xv); 747 vb, ctxt);
464 else 748 else
465 ret = ocfs2_xattr_shrink_size(inode, 749 ret = ocfs2_xattr_shrink_size(inode,
466 old_clusters, new_clusters, 750 old_clusters, new_clusters,
467 root_bh, xv); 751 vb, ctxt);
468 752
469 return ret; 753 return ret;
470} 754}
@@ -554,18 +838,14 @@ static int ocfs2_xattr_block_list(struct inode *inode,
554 if (!di->i_xattr_loc) 838 if (!di->i_xattr_loc)
555 return ret; 839 return ret;
556 840
557 ret = ocfs2_read_block(inode, le64_to_cpu(di->i_xattr_loc), &blk_bh); 841 ret = ocfs2_read_xattr_block(inode, le64_to_cpu(di->i_xattr_loc),
842 &blk_bh);
558 if (ret < 0) { 843 if (ret < 0) {
559 mlog_errno(ret); 844 mlog_errno(ret);
560 return ret; 845 return ret;
561 } 846 }
562 847
563 xb = (struct ocfs2_xattr_block *)blk_bh->b_data; 848 xb = (struct ocfs2_xattr_block *)blk_bh->b_data;
564 if (!OCFS2_IS_VALID_XATTR_BLOCK(xb)) {
565 ret = -EIO;
566 goto cleanup;
567 }
568
569 if (!(le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED)) { 849 if (!(le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED)) {
570 struct ocfs2_xattr_header *header = &xb->xb_attrs.xb_header; 850 struct ocfs2_xattr_header *header = &xb->xb_attrs.xb_header;
571 ret = ocfs2_xattr_list_entries(inode, header, 851 ret = ocfs2_xattr_list_entries(inode, header,
@@ -575,7 +855,7 @@ static int ocfs2_xattr_block_list(struct inode *inode,
575 ret = ocfs2_xattr_tree_list_index_block(inode, xt, 855 ret = ocfs2_xattr_tree_list_index_block(inode, xt,
576 buffer, buffer_size); 856 buffer, buffer_size);
577 } 857 }
578cleanup: 858
579 brelse(blk_bh); 859 brelse(blk_bh);
580 860
581 return ret; 861 return ret;
@@ -685,7 +965,7 @@ static int ocfs2_xattr_get_value_outside(struct inode *inode,
685 blkno = ocfs2_clusters_to_blocks(inode->i_sb, p_cluster); 965 blkno = ocfs2_clusters_to_blocks(inode->i_sb, p_cluster);
686 /* Copy ocfs2_xattr_value */ 966 /* Copy ocfs2_xattr_value */
687 for (i = 0; i < num_clusters * bpc; i++, blkno++) { 967 for (i = 0; i < num_clusters * bpc; i++, blkno++) {
688 ret = ocfs2_read_block(inode, blkno, &bh); 968 ret = ocfs2_read_block(inode, blkno, &bh, NULL);
689 if (ret) { 969 if (ret) {
690 mlog_errno(ret); 970 mlog_errno(ret);
691 goto out; 971 goto out;
@@ -769,7 +1049,12 @@ static int ocfs2_xattr_block_get(struct inode *inode,
769 size_t size; 1049 size_t size;
770 int ret = -ENODATA, name_offset, name_len, block_off, i; 1050 int ret = -ENODATA, name_offset, name_len, block_off, i;
771 1051
772 memset(&xs->bucket, 0, sizeof(xs->bucket)); 1052 xs->bucket = ocfs2_xattr_bucket_new(inode);
1053 if (!xs->bucket) {
1054 ret = -ENOMEM;
1055 mlog_errno(ret);
1056 goto cleanup;
1057 }
773 1058
774 ret = ocfs2_xattr_block_find(inode, name_index, name, xs); 1059 ret = ocfs2_xattr_block_find(inode, name_index, name, xs);
775 if (ret) { 1060 if (ret) {
@@ -795,11 +1080,11 @@ static int ocfs2_xattr_block_get(struct inode *inode,
795 1080
796 if (le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED) { 1081 if (le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED) {
797 ret = ocfs2_xattr_bucket_get_name_value(inode, 1082 ret = ocfs2_xattr_bucket_get_name_value(inode,
798 xs->bucket.xh, 1083 bucket_xh(xs->bucket),
799 i, 1084 i,
800 &block_off, 1085 &block_off,
801 &name_offset); 1086 &name_offset);
802 xs->base = xs->bucket.bhs[block_off]->b_data; 1087 xs->base = bucket_block(xs->bucket, block_off);
803 } 1088 }
804 if (ocfs2_xattr_is_local(xs->here)) { 1089 if (ocfs2_xattr_is_local(xs->here)) {
805 memcpy(buffer, (void *)xs->base + 1090 memcpy(buffer, (void *)xs->base +
@@ -817,21 +1102,15 @@ static int ocfs2_xattr_block_get(struct inode *inode,
817 } 1102 }
818 ret = size; 1103 ret = size;
819cleanup: 1104cleanup:
820 for (i = 0; i < OCFS2_XATTR_MAX_BLOCKS_PER_BUCKET; i++) 1105 ocfs2_xattr_bucket_free(xs->bucket);
821 brelse(xs->bucket.bhs[i]);
822 memset(&xs->bucket, 0, sizeof(xs->bucket));
823 1106
824 brelse(xs->xattr_bh); 1107 brelse(xs->xattr_bh);
825 xs->xattr_bh = NULL; 1108 xs->xattr_bh = NULL;
826 return ret; 1109 return ret;
827} 1110}
828 1111
829/* ocfs2_xattr_get() 1112int ocfs2_xattr_get_nolock(struct inode *inode,
830 * 1113 struct buffer_head *di_bh,
831 * Copy an extended attribute into the buffer provided.
832 * Buffer is NULL to compute the size of buffer required.
833 */
834static int ocfs2_xattr_get(struct inode *inode,
835 int name_index, 1114 int name_index,
836 const char *name, 1115 const char *name,
837 void *buffer, 1116 void *buffer,
@@ -839,7 +1118,6 @@ static int ocfs2_xattr_get(struct inode *inode,
839{ 1118{
840 int ret; 1119 int ret;
841 struct ocfs2_dinode *di = NULL; 1120 struct ocfs2_dinode *di = NULL;
842 struct buffer_head *di_bh = NULL;
843 struct ocfs2_inode_info *oi = OCFS2_I(inode); 1121 struct ocfs2_inode_info *oi = OCFS2_I(inode);
844 struct ocfs2_xattr_search xis = { 1122 struct ocfs2_xattr_search xis = {
845 .not_found = -ENODATA, 1123 .not_found = -ENODATA,
@@ -854,11 +1132,6 @@ static int ocfs2_xattr_get(struct inode *inode,
854 if (!(oi->ip_dyn_features & OCFS2_HAS_XATTR_FL)) 1132 if (!(oi->ip_dyn_features & OCFS2_HAS_XATTR_FL))
855 ret = -ENODATA; 1133 ret = -ENODATA;
856 1134
857 ret = ocfs2_inode_lock(inode, &di_bh, 0);
858 if (ret < 0) {
859 mlog_errno(ret);
860 return ret;
861 }
862 xis.inode_bh = xbs.inode_bh = di_bh; 1135 xis.inode_bh = xbs.inode_bh = di_bh;
863 di = (struct ocfs2_dinode *)di_bh->b_data; 1136 di = (struct ocfs2_dinode *)di_bh->b_data;
864 1137
@@ -869,6 +1142,32 @@ static int ocfs2_xattr_get(struct inode *inode,
869 ret = ocfs2_xattr_block_get(inode, name_index, name, buffer, 1142 ret = ocfs2_xattr_block_get(inode, name_index, name, buffer,
870 buffer_size, &xbs); 1143 buffer_size, &xbs);
871 up_read(&oi->ip_xattr_sem); 1144 up_read(&oi->ip_xattr_sem);
1145
1146 return ret;
1147}
1148
1149/* ocfs2_xattr_get()
1150 *
1151 * Copy an extended attribute into the buffer provided.
1152 * Buffer is NULL to compute the size of buffer required.
1153 */
1154static int ocfs2_xattr_get(struct inode *inode,
1155 int name_index,
1156 const char *name,
1157 void *buffer,
1158 size_t buffer_size)
1159{
1160 int ret;
1161 struct buffer_head *di_bh = NULL;
1162
1163 ret = ocfs2_inode_lock(inode, &di_bh, 0);
1164 if (ret < 0) {
1165 mlog_errno(ret);
1166 return ret;
1167 }
1168 ret = ocfs2_xattr_get_nolock(inode, di_bh, name_index,
1169 name, buffer, buffer_size);
1170
872 ocfs2_inode_unlock(inode, 0); 1171 ocfs2_inode_unlock(inode, 0);
873 1172
874 brelse(di_bh); 1173 brelse(di_bh);
@@ -877,44 +1176,36 @@ static int ocfs2_xattr_get(struct inode *inode,
877} 1176}
878 1177
879static int __ocfs2_xattr_set_value_outside(struct inode *inode, 1178static int __ocfs2_xattr_set_value_outside(struct inode *inode,
1179 handle_t *handle,
880 struct ocfs2_xattr_value_root *xv, 1180 struct ocfs2_xattr_value_root *xv,
881 const void *value, 1181 const void *value,
882 int value_len) 1182 int value_len)
883{ 1183{
884 int ret = 0, i, cp_len, credits; 1184 int ret = 0, i, cp_len;
885 u16 blocksize = inode->i_sb->s_blocksize; 1185 u16 blocksize = inode->i_sb->s_blocksize;
886 u32 p_cluster, num_clusters; 1186 u32 p_cluster, num_clusters;
887 u32 cpos = 0, bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1); 1187 u32 cpos = 0, bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1);
888 u32 clusters = ocfs2_clusters_for_bytes(inode->i_sb, value_len); 1188 u32 clusters = ocfs2_clusters_for_bytes(inode->i_sb, value_len);
889 u64 blkno; 1189 u64 blkno;
890 struct buffer_head *bh = NULL; 1190 struct buffer_head *bh = NULL;
891 handle_t *handle;
892 1191
893 BUG_ON(clusters > le32_to_cpu(xv->xr_clusters)); 1192 BUG_ON(clusters > le32_to_cpu(xv->xr_clusters));
894 1193
895 credits = clusters * bpc;
896 handle = ocfs2_start_trans(OCFS2_SB(inode->i_sb), credits);
897 if (IS_ERR(handle)) {
898 ret = PTR_ERR(handle);
899 mlog_errno(ret);
900 goto out;
901 }
902
903 while (cpos < clusters) { 1194 while (cpos < clusters) {
904 ret = ocfs2_xattr_get_clusters(inode, cpos, &p_cluster, 1195 ret = ocfs2_xattr_get_clusters(inode, cpos, &p_cluster,
905 &num_clusters, &xv->xr_list); 1196 &num_clusters, &xv->xr_list);
906 if (ret) { 1197 if (ret) {
907 mlog_errno(ret); 1198 mlog_errno(ret);
908 goto out_commit; 1199 goto out;
909 } 1200 }
910 1201
911 blkno = ocfs2_clusters_to_blocks(inode->i_sb, p_cluster); 1202 blkno = ocfs2_clusters_to_blocks(inode->i_sb, p_cluster);
912 1203
913 for (i = 0; i < num_clusters * bpc; i++, blkno++) { 1204 for (i = 0; i < num_clusters * bpc; i++, blkno++) {
914 ret = ocfs2_read_block(inode, blkno, &bh); 1205 ret = ocfs2_read_block(inode, blkno, &bh, NULL);
915 if (ret) { 1206 if (ret) {
916 mlog_errno(ret); 1207 mlog_errno(ret);
917 goto out_commit; 1208 goto out;
918 } 1209 }
919 1210
920 ret = ocfs2_journal_access(handle, 1211 ret = ocfs2_journal_access(handle,
@@ -923,7 +1214,7 @@ static int __ocfs2_xattr_set_value_outside(struct inode *inode,
923 OCFS2_JOURNAL_ACCESS_WRITE); 1214 OCFS2_JOURNAL_ACCESS_WRITE);
924 if (ret < 0) { 1215 if (ret < 0) {
925 mlog_errno(ret); 1216 mlog_errno(ret);
926 goto out_commit; 1217 goto out;
927 } 1218 }
928 1219
929 cp_len = value_len > blocksize ? blocksize : value_len; 1220 cp_len = value_len > blocksize ? blocksize : value_len;
@@ -937,7 +1228,7 @@ static int __ocfs2_xattr_set_value_outside(struct inode *inode,
937 ret = ocfs2_journal_dirty(handle, bh); 1228 ret = ocfs2_journal_dirty(handle, bh);
938 if (ret < 0) { 1229 if (ret < 0) {
939 mlog_errno(ret); 1230 mlog_errno(ret);
940 goto out_commit; 1231 goto out;
941 } 1232 }
942 brelse(bh); 1233 brelse(bh);
943 bh = NULL; 1234 bh = NULL;
@@ -951,8 +1242,6 @@ static int __ocfs2_xattr_set_value_outside(struct inode *inode,
951 } 1242 }
952 cpos += num_clusters; 1243 cpos += num_clusters;
953 } 1244 }
954out_commit:
955 ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
956out: 1245out:
957 brelse(bh); 1246 brelse(bh);
958 1247
@@ -960,28 +1249,22 @@ out:
960} 1249}
961 1250
962static int ocfs2_xattr_cleanup(struct inode *inode, 1251static int ocfs2_xattr_cleanup(struct inode *inode,
1252 handle_t *handle,
963 struct ocfs2_xattr_info *xi, 1253 struct ocfs2_xattr_info *xi,
964 struct ocfs2_xattr_search *xs, 1254 struct ocfs2_xattr_search *xs,
1255 struct ocfs2_xattr_value_buf *vb,
965 size_t offs) 1256 size_t offs)
966{ 1257{
967 handle_t *handle = NULL;
968 int ret = 0; 1258 int ret = 0;
969 size_t name_len = strlen(xi->name); 1259 size_t name_len = strlen(xi->name);
970 void *val = xs->base + offs; 1260 void *val = xs->base + offs;
971 size_t size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_ROOT_SIZE; 1261 size_t size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_ROOT_SIZE;
972 1262
973 handle = ocfs2_start_trans((OCFS2_SB(inode->i_sb)), 1263 ret = vb->vb_access(handle, inode, vb->vb_bh,
974 OCFS2_XATTR_BLOCK_UPDATE_CREDITS); 1264 OCFS2_JOURNAL_ACCESS_WRITE);
975 if (IS_ERR(handle)) {
976 ret = PTR_ERR(handle);
977 mlog_errno(ret);
978 goto out;
979 }
980 ret = ocfs2_journal_access(handle, inode, xs->xattr_bh,
981 OCFS2_JOURNAL_ACCESS_WRITE);
982 if (ret) { 1265 if (ret) {
983 mlog_errno(ret); 1266 mlog_errno(ret);
984 goto out_commit; 1267 goto out;
985 } 1268 }
986 /* Decrease xattr count */ 1269 /* Decrease xattr count */
987 le16_add_cpu(&xs->header->xh_count, -1); 1270 le16_add_cpu(&xs->header->xh_count, -1);
@@ -989,35 +1272,27 @@ static int ocfs2_xattr_cleanup(struct inode *inode,
989 memset((void *)xs->here, 0, sizeof(struct ocfs2_xattr_entry)); 1272 memset((void *)xs->here, 0, sizeof(struct ocfs2_xattr_entry));
990 memset(val, 0, size); 1273 memset(val, 0, size);
991 1274
992 ret = ocfs2_journal_dirty(handle, xs->xattr_bh); 1275 ret = ocfs2_journal_dirty(handle, vb->vb_bh);
993 if (ret < 0) 1276 if (ret < 0)
994 mlog_errno(ret); 1277 mlog_errno(ret);
995out_commit:
996 ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
997out: 1278out:
998 return ret; 1279 return ret;
999} 1280}
1000 1281
1001static int ocfs2_xattr_update_entry(struct inode *inode, 1282static int ocfs2_xattr_update_entry(struct inode *inode,
1283 handle_t *handle,
1002 struct ocfs2_xattr_info *xi, 1284 struct ocfs2_xattr_info *xi,
1003 struct ocfs2_xattr_search *xs, 1285 struct ocfs2_xattr_search *xs,
1286 struct ocfs2_xattr_value_buf *vb,
1004 size_t offs) 1287 size_t offs)
1005{ 1288{
1006 handle_t *handle = NULL; 1289 int ret;
1007 int ret = 0;
1008 1290
1009 handle = ocfs2_start_trans((OCFS2_SB(inode->i_sb)), 1291 ret = vb->vb_access(handle, inode, vb->vb_bh,
1010 OCFS2_XATTR_BLOCK_UPDATE_CREDITS); 1292 OCFS2_JOURNAL_ACCESS_WRITE);
1011 if (IS_ERR(handle)) {
1012 ret = PTR_ERR(handle);
1013 mlog_errno(ret);
1014 goto out;
1015 }
1016 ret = ocfs2_journal_access(handle, inode, xs->xattr_bh,
1017 OCFS2_JOURNAL_ACCESS_WRITE);
1018 if (ret) { 1293 if (ret) {
1019 mlog_errno(ret); 1294 mlog_errno(ret);
1020 goto out_commit; 1295 goto out;
1021 } 1296 }
1022 1297
1023 xs->here->xe_name_offset = cpu_to_le16(offs); 1298 xs->here->xe_name_offset = cpu_to_le16(offs);
@@ -1028,11 +1303,9 @@ static int ocfs2_xattr_update_entry(struct inode *inode,
1028 ocfs2_xattr_set_local(xs->here, 0); 1303 ocfs2_xattr_set_local(xs->here, 0);
1029 ocfs2_xattr_hash_entry(inode, xs->header, xs->here); 1304 ocfs2_xattr_hash_entry(inode, xs->header, xs->here);
1030 1305
1031 ret = ocfs2_journal_dirty(handle, xs->xattr_bh); 1306 ret = ocfs2_journal_dirty(handle, vb->vb_bh);
1032 if (ret < 0) 1307 if (ret < 0)
1033 mlog_errno(ret); 1308 mlog_errno(ret);
1034out_commit:
1035 ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
1036out: 1309out:
1037 return ret; 1310 return ret;
1038} 1311}
@@ -1045,6 +1318,8 @@ out:
1045static int ocfs2_xattr_set_value_outside(struct inode *inode, 1318static int ocfs2_xattr_set_value_outside(struct inode *inode,
1046 struct ocfs2_xattr_info *xi, 1319 struct ocfs2_xattr_info *xi,
1047 struct ocfs2_xattr_search *xs, 1320 struct ocfs2_xattr_search *xs,
1321 struct ocfs2_xattr_set_ctxt *ctxt,
1322 struct ocfs2_xattr_value_buf *vb,
1048 size_t offs) 1323 size_t offs)
1049{ 1324{
1050 size_t name_len = strlen(xi->name); 1325 size_t name_len = strlen(xi->name);
@@ -1062,20 +1337,20 @@ static int ocfs2_xattr_set_value_outside(struct inode *inode,
1062 xv->xr_list.l_tree_depth = 0; 1337 xv->xr_list.l_tree_depth = 0;
1063 xv->xr_list.l_count = cpu_to_le16(1); 1338 xv->xr_list.l_count = cpu_to_le16(1);
1064 xv->xr_list.l_next_free_rec = 0; 1339 xv->xr_list.l_next_free_rec = 0;
1340 vb->vb_xv = xv;
1065 1341
1066 ret = ocfs2_xattr_value_truncate(inode, xs->xattr_bh, xv, 1342 ret = ocfs2_xattr_value_truncate(inode, vb, xi->value_len, ctxt);
1067 xi->value_len);
1068 if (ret < 0) { 1343 if (ret < 0) {
1069 mlog_errno(ret); 1344 mlog_errno(ret);
1070 return ret; 1345 return ret;
1071 } 1346 }
1072 ret = __ocfs2_xattr_set_value_outside(inode, xv, xi->value, 1347 ret = ocfs2_xattr_update_entry(inode, ctxt->handle, xi, xs, vb, offs);
1073 xi->value_len);
1074 if (ret < 0) { 1348 if (ret < 0) {
1075 mlog_errno(ret); 1349 mlog_errno(ret);
1076 return ret; 1350 return ret;
1077 } 1351 }
1078 ret = ocfs2_xattr_update_entry(inode, xi, xs, offs); 1352 ret = __ocfs2_xattr_set_value_outside(inode, ctxt->handle, vb->vb_xv,
1353 xi->value, xi->value_len);
1079 if (ret < 0) 1354 if (ret < 0)
1080 mlog_errno(ret); 1355 mlog_errno(ret);
1081 1356
@@ -1195,6 +1470,7 @@ static void ocfs2_xattr_set_entry_local(struct inode *inode,
1195static int ocfs2_xattr_set_entry(struct inode *inode, 1470static int ocfs2_xattr_set_entry(struct inode *inode,
1196 struct ocfs2_xattr_info *xi, 1471 struct ocfs2_xattr_info *xi,
1197 struct ocfs2_xattr_search *xs, 1472 struct ocfs2_xattr_search *xs,
1473 struct ocfs2_xattr_set_ctxt *ctxt,
1198 int flag) 1474 int flag)
1199{ 1475{
1200 struct ocfs2_xattr_entry *last; 1476 struct ocfs2_xattr_entry *last;
@@ -1202,7 +1478,7 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
1202 struct ocfs2_dinode *di = (struct ocfs2_dinode *)xs->inode_bh->b_data; 1478 struct ocfs2_dinode *di = (struct ocfs2_dinode *)xs->inode_bh->b_data;
1203 size_t min_offs = xs->end - xs->base, name_len = strlen(xi->name); 1479 size_t min_offs = xs->end - xs->base, name_len = strlen(xi->name);
1204 size_t size_l = 0; 1480 size_t size_l = 0;
1205 handle_t *handle = NULL; 1481 handle_t *handle = ctxt->handle;
1206 int free, i, ret; 1482 int free, i, ret;
1207 struct ocfs2_xattr_info xi_l = { 1483 struct ocfs2_xattr_info xi_l = {
1208 .name_index = xi->name_index, 1484 .name_index = xi->name_index,
@@ -1210,6 +1486,16 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
1210 .value = xi->value, 1486 .value = xi->value,
1211 .value_len = xi->value_len, 1487 .value_len = xi->value_len,
1212 }; 1488 };
1489 struct ocfs2_xattr_value_buf vb = {
1490 .vb_bh = xs->xattr_bh,
1491 .vb_access = ocfs2_journal_access_di,
1492 };
1493
1494 if (!(flag & OCFS2_INLINE_XATTR_FL)) {
1495 BUG_ON(xs->xattr_bh == xs->inode_bh);
1496 vb.vb_access = ocfs2_journal_access_xb;
1497 } else
1498 BUG_ON(xs->xattr_bh != xs->inode_bh);
1213 1499
1214 /* Compute min_offs, last and free space. */ 1500 /* Compute min_offs, last and free space. */
1215 last = xs->header->xh_entries; 1501 last = xs->header->xh_entries;
@@ -1265,15 +1551,14 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
1265 if (ocfs2_xattr_is_local(xs->here) && size == size_l) { 1551 if (ocfs2_xattr_is_local(xs->here) && size == size_l) {
1266 /* Replace existing local xattr with tree root */ 1552 /* Replace existing local xattr with tree root */
1267 ret = ocfs2_xattr_set_value_outside(inode, xi, xs, 1553 ret = ocfs2_xattr_set_value_outside(inode, xi, xs,
1268 offs); 1554 ctxt, &vb, offs);
1269 if (ret < 0) 1555 if (ret < 0)
1270 mlog_errno(ret); 1556 mlog_errno(ret);
1271 goto out; 1557 goto out;
1272 } else if (!ocfs2_xattr_is_local(xs->here)) { 1558 } else if (!ocfs2_xattr_is_local(xs->here)) {
1273 /* For existing xattr which has value outside */ 1559 /* For existing xattr which has value outside */
1274 struct ocfs2_xattr_value_root *xv = NULL; 1560 vb.vb_xv = (struct ocfs2_xattr_value_root *)
1275 xv = (struct ocfs2_xattr_value_root *)(val + 1561 (val + OCFS2_XATTR_SIZE(name_len));
1276 OCFS2_XATTR_SIZE(name_len));
1277 1562
1278 if (xi->value_len > OCFS2_XATTR_INLINE_SIZE) { 1563 if (xi->value_len > OCFS2_XATTR_INLINE_SIZE) {
1279 /* 1564 /*
@@ -1282,27 +1567,30 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
1282 * then set new value with set_value_outside(). 1567 * then set new value with set_value_outside().
1283 */ 1568 */
1284 ret = ocfs2_xattr_value_truncate(inode, 1569 ret = ocfs2_xattr_value_truncate(inode,
1285 xs->xattr_bh, 1570 &vb,
1286 xv, 1571 xi->value_len,
1287 xi->value_len); 1572 ctxt);
1288 if (ret < 0) { 1573 if (ret < 0) {
1289 mlog_errno(ret); 1574 mlog_errno(ret);
1290 goto out; 1575 goto out;
1291 } 1576 }
1292 1577
1293 ret = __ocfs2_xattr_set_value_outside(inode, 1578 ret = ocfs2_xattr_update_entry(inode,
1294 xv, 1579 handle,
1295 xi->value, 1580 xi,
1296 xi->value_len); 1581 xs,
1582 &vb,
1583 offs);
1297 if (ret < 0) { 1584 if (ret < 0) {
1298 mlog_errno(ret); 1585 mlog_errno(ret);
1299 goto out; 1586 goto out;
1300 } 1587 }
1301 1588
1302 ret = ocfs2_xattr_update_entry(inode, 1589 ret = __ocfs2_xattr_set_value_outside(inode,
1303 xi, 1590 handle,
1304 xs, 1591 vb.vb_xv,
1305 offs); 1592 xi->value,
1593 xi->value_len);
1306 if (ret < 0) 1594 if (ret < 0)
1307 mlog_errno(ret); 1595 mlog_errno(ret);
1308 goto out; 1596 goto out;
@@ -1312,44 +1600,28 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
1312 * just trucate old value to zero. 1600 * just trucate old value to zero.
1313 */ 1601 */
1314 ret = ocfs2_xattr_value_truncate(inode, 1602 ret = ocfs2_xattr_value_truncate(inode,
1315 xs->xattr_bh, 1603 &vb,
1316 xv, 1604 0,
1317 0); 1605 ctxt);
1318 if (ret < 0) 1606 if (ret < 0)
1319 mlog_errno(ret); 1607 mlog_errno(ret);
1320 } 1608 }
1321 } 1609 }
1322 } 1610 }
1323 1611
1324 handle = ocfs2_start_trans((OCFS2_SB(inode->i_sb)), 1612 ret = ocfs2_journal_access_di(handle, inode, xs->inode_bh,
1325 OCFS2_INODE_UPDATE_CREDITS); 1613 OCFS2_JOURNAL_ACCESS_WRITE);
1326 if (IS_ERR(handle)) {
1327 ret = PTR_ERR(handle);
1328 mlog_errno(ret);
1329 goto out;
1330 }
1331
1332 ret = ocfs2_journal_access(handle, inode, xs->inode_bh,
1333 OCFS2_JOURNAL_ACCESS_WRITE);
1334 if (ret) { 1614 if (ret) {
1335 mlog_errno(ret); 1615 mlog_errno(ret);
1336 goto out_commit; 1616 goto out;
1337 } 1617 }
1338 1618
1339 if (!(flag & OCFS2_INLINE_XATTR_FL)) { 1619 if (!(flag & OCFS2_INLINE_XATTR_FL)) {
1340 /* set extended attribute in external block. */ 1620 ret = vb.vb_access(handle, inode, vb.vb_bh,
1341 ret = ocfs2_extend_trans(handle, 1621 OCFS2_JOURNAL_ACCESS_WRITE);
1342 OCFS2_INODE_UPDATE_CREDITS +
1343 OCFS2_XATTR_BLOCK_UPDATE_CREDITS);
1344 if (ret) {
1345 mlog_errno(ret);
1346 goto out_commit;
1347 }
1348 ret = ocfs2_journal_access(handle, inode, xs->xattr_bh,
1349 OCFS2_JOURNAL_ACCESS_WRITE);
1350 if (ret) { 1622 if (ret) {
1351 mlog_errno(ret); 1623 mlog_errno(ret);
1352 goto out_commit; 1624 goto out;
1353 } 1625 }
1354 } 1626 }
1355 1627
@@ -1363,7 +1635,7 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
1363 ret = ocfs2_journal_dirty(handle, xs->xattr_bh); 1635 ret = ocfs2_journal_dirty(handle, xs->xattr_bh);
1364 if (ret < 0) { 1636 if (ret < 0) {
1365 mlog_errno(ret); 1637 mlog_errno(ret);
1366 goto out_commit; 1638 goto out;
1367 } 1639 }
1368 } 1640 }
1369 1641
@@ -1391,25 +1663,19 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
1391 oi->ip_dyn_features |= flag; 1663 oi->ip_dyn_features |= flag;
1392 di->i_dyn_features = cpu_to_le16(oi->ip_dyn_features); 1664 di->i_dyn_features = cpu_to_le16(oi->ip_dyn_features);
1393 spin_unlock(&oi->ip_lock); 1665 spin_unlock(&oi->ip_lock);
1394 /* Update inode ctime */
1395 inode->i_ctime = CURRENT_TIME;
1396 di->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
1397 di->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
1398 1666
1399 ret = ocfs2_journal_dirty(handle, xs->inode_bh); 1667 ret = ocfs2_journal_dirty(handle, xs->inode_bh);
1400 if (ret < 0) 1668 if (ret < 0)
1401 mlog_errno(ret); 1669 mlog_errno(ret);
1402 1670
1403out_commit:
1404 ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
1405
1406 if (!ret && xi->value_len > OCFS2_XATTR_INLINE_SIZE) { 1671 if (!ret && xi->value_len > OCFS2_XATTR_INLINE_SIZE) {
1407 /* 1672 /*
1408 * Set value outside in B tree. 1673 * Set value outside in B tree.
1409 * This is the second step for value size > INLINE_SIZE. 1674 * This is the second step for value size > INLINE_SIZE.
1410 */ 1675 */
1411 size_t offs = le16_to_cpu(xs->here->xe_name_offset); 1676 size_t offs = le16_to_cpu(xs->here->xe_name_offset);
1412 ret = ocfs2_xattr_set_value_outside(inode, xi, xs, offs); 1677 ret = ocfs2_xattr_set_value_outside(inode, xi, xs, ctxt,
1678 &vb, offs);
1413 if (ret < 0) { 1679 if (ret < 0) {
1414 int ret2; 1680 int ret2;
1415 1681
@@ -1418,41 +1684,56 @@ out_commit:
1418 * If set value outside failed, we have to clean 1684 * If set value outside failed, we have to clean
1419 * the junk tree root we have already set in local. 1685 * the junk tree root we have already set in local.
1420 */ 1686 */
1421 ret2 = ocfs2_xattr_cleanup(inode, xi, xs, offs); 1687 ret2 = ocfs2_xattr_cleanup(inode, ctxt->handle,
1688 xi, xs, &vb, offs);
1422 if (ret2 < 0) 1689 if (ret2 < 0)
1423 mlog_errno(ret2); 1690 mlog_errno(ret2);
1424 } 1691 }
1425 } 1692 }
1426out: 1693out:
1427 return ret; 1694 return ret;
1428
1429} 1695}
1430 1696
1431static int ocfs2_remove_value_outside(struct inode*inode, 1697static int ocfs2_remove_value_outside(struct inode*inode,
1432 struct buffer_head *bh, 1698 struct ocfs2_xattr_value_buf *vb,
1433 struct ocfs2_xattr_header *header) 1699 struct ocfs2_xattr_header *header)
1434{ 1700{
1435 int ret = 0, i; 1701 int ret = 0, i;
1702 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
1703 struct ocfs2_xattr_set_ctxt ctxt = { NULL, NULL, };
1704
1705 ocfs2_init_dealloc_ctxt(&ctxt.dealloc);
1706
1707 ctxt.handle = ocfs2_start_trans(osb,
1708 ocfs2_remove_extent_credits(osb->sb));
1709 if (IS_ERR(ctxt.handle)) {
1710 ret = PTR_ERR(ctxt.handle);
1711 mlog_errno(ret);
1712 goto out;
1713 }
1436 1714
1437 for (i = 0; i < le16_to_cpu(header->xh_count); i++) { 1715 for (i = 0; i < le16_to_cpu(header->xh_count); i++) {
1438 struct ocfs2_xattr_entry *entry = &header->xh_entries[i]; 1716 struct ocfs2_xattr_entry *entry = &header->xh_entries[i];
1439 1717
1440 if (!ocfs2_xattr_is_local(entry)) { 1718 if (!ocfs2_xattr_is_local(entry)) {
1441 struct ocfs2_xattr_value_root *xv;
1442 void *val; 1719 void *val;
1443 1720
1444 val = (void *)header + 1721 val = (void *)header +
1445 le16_to_cpu(entry->xe_name_offset); 1722 le16_to_cpu(entry->xe_name_offset);
1446 xv = (struct ocfs2_xattr_value_root *) 1723 vb->vb_xv = (struct ocfs2_xattr_value_root *)
1447 (val + OCFS2_XATTR_SIZE(entry->xe_name_len)); 1724 (val + OCFS2_XATTR_SIZE(entry->xe_name_len));
1448 ret = ocfs2_xattr_value_truncate(inode, bh, xv, 0); 1725 ret = ocfs2_xattr_value_truncate(inode, vb, 0, &ctxt);
1449 if (ret < 0) { 1726 if (ret < 0) {
1450 mlog_errno(ret); 1727 mlog_errno(ret);
1451 return ret; 1728 break;
1452 } 1729 }
1453 } 1730 }
1454 } 1731 }
1455 1732
1733 ocfs2_commit_trans(osb, ctxt.handle);
1734 ocfs2_schedule_truncate_log_flush(osb, 1);
1735 ocfs2_run_deallocs(osb, &ctxt.dealloc);
1736out:
1456 return ret; 1737 return ret;
1457} 1738}
1458 1739
@@ -1463,12 +1744,16 @@ static int ocfs2_xattr_ibody_remove(struct inode *inode,
1463 struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data; 1744 struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data;
1464 struct ocfs2_xattr_header *header; 1745 struct ocfs2_xattr_header *header;
1465 int ret; 1746 int ret;
1747 struct ocfs2_xattr_value_buf vb = {
1748 .vb_bh = di_bh,
1749 .vb_access = ocfs2_journal_access_di,
1750 };
1466 1751
1467 header = (struct ocfs2_xattr_header *) 1752 header = (struct ocfs2_xattr_header *)
1468 ((void *)di + inode->i_sb->s_blocksize - 1753 ((void *)di + inode->i_sb->s_blocksize -
1469 le16_to_cpu(di->i_xattr_inline_size)); 1754 le16_to_cpu(di->i_xattr_inline_size));
1470 1755
1471 ret = ocfs2_remove_value_outside(inode, di_bh, header); 1756 ret = ocfs2_remove_value_outside(inode, &vb, header);
1472 1757
1473 return ret; 1758 return ret;
1474} 1759}
@@ -1478,11 +1763,15 @@ static int ocfs2_xattr_block_remove(struct inode *inode,
1478{ 1763{
1479 struct ocfs2_xattr_block *xb; 1764 struct ocfs2_xattr_block *xb;
1480 int ret = 0; 1765 int ret = 0;
1766 struct ocfs2_xattr_value_buf vb = {
1767 .vb_bh = blk_bh,
1768 .vb_access = ocfs2_journal_access_xb,
1769 };
1481 1770
1482 xb = (struct ocfs2_xattr_block *)blk_bh->b_data; 1771 xb = (struct ocfs2_xattr_block *)blk_bh->b_data;
1483 if (!(le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED)) { 1772 if (!(le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED)) {
1484 struct ocfs2_xattr_header *header = &(xb->xb_attrs.xb_header); 1773 struct ocfs2_xattr_header *header = &(xb->xb_attrs.xb_header);
1485 ret = ocfs2_remove_value_outside(inode, blk_bh, header); 1774 ret = ocfs2_remove_value_outside(inode, &vb, header);
1486 } else 1775 } else
1487 ret = ocfs2_delete_xattr_index_block(inode, blk_bh); 1776 ret = ocfs2_delete_xattr_index_block(inode, blk_bh);
1488 1777
@@ -1502,24 +1791,19 @@ static int ocfs2_xattr_free_block(struct inode *inode,
1502 u64 blk, bg_blkno; 1791 u64 blk, bg_blkno;
1503 u16 bit; 1792 u16 bit;
1504 1793
1505 ret = ocfs2_read_block(inode, block, &blk_bh); 1794 ret = ocfs2_read_xattr_block(inode, block, &blk_bh);
1506 if (ret < 0) { 1795 if (ret < 0) {
1507 mlog_errno(ret); 1796 mlog_errno(ret);
1508 goto out; 1797 goto out;
1509 } 1798 }
1510 1799
1511 xb = (struct ocfs2_xattr_block *)blk_bh->b_data;
1512 if (!OCFS2_IS_VALID_XATTR_BLOCK(xb)) {
1513 ret = -EIO;
1514 goto out;
1515 }
1516
1517 ret = ocfs2_xattr_block_remove(inode, blk_bh); 1800 ret = ocfs2_xattr_block_remove(inode, blk_bh);
1518 if (ret < 0) { 1801 if (ret < 0) {
1519 mlog_errno(ret); 1802 mlog_errno(ret);
1520 goto out; 1803 goto out;
1521 } 1804 }
1522 1805
1806 xb = (struct ocfs2_xattr_block *)blk_bh->b_data;
1523 blk = le64_to_cpu(xb->xb_blkno); 1807 blk = le64_to_cpu(xb->xb_blkno);
1524 bit = le16_to_cpu(xb->xb_suballoc_bit); 1808 bit = le16_to_cpu(xb->xb_suballoc_bit);
1525 bg_blkno = ocfs2_which_suballoc_group(blk, bit); 1809 bg_blkno = ocfs2_which_suballoc_group(blk, bit);
@@ -1606,8 +1890,8 @@ int ocfs2_xattr_remove(struct inode *inode, struct buffer_head *di_bh)
1606 mlog_errno(ret); 1890 mlog_errno(ret);
1607 goto out; 1891 goto out;
1608 } 1892 }
1609 ret = ocfs2_journal_access(handle, inode, di_bh, 1893 ret = ocfs2_journal_access_di(handle, inode, di_bh,
1610 OCFS2_JOURNAL_ACCESS_WRITE); 1894 OCFS2_JOURNAL_ACCESS_WRITE);
1611 if (ret) { 1895 if (ret) {
1612 mlog_errno(ret); 1896 mlog_errno(ret);
1613 goto out_commit; 1897 goto out_commit;
@@ -1714,7 +1998,8 @@ static int ocfs2_xattr_ibody_find(struct inode *inode,
1714 */ 1998 */
1715static int ocfs2_xattr_ibody_set(struct inode *inode, 1999static int ocfs2_xattr_ibody_set(struct inode *inode,
1716 struct ocfs2_xattr_info *xi, 2000 struct ocfs2_xattr_info *xi,
1717 struct ocfs2_xattr_search *xs) 2001 struct ocfs2_xattr_search *xs,
2002 struct ocfs2_xattr_set_ctxt *ctxt)
1718{ 2003{
1719 struct ocfs2_inode_info *oi = OCFS2_I(inode); 2004 struct ocfs2_inode_info *oi = OCFS2_I(inode);
1720 struct ocfs2_dinode *di = (struct ocfs2_dinode *)xs->inode_bh->b_data; 2005 struct ocfs2_dinode *di = (struct ocfs2_dinode *)xs->inode_bh->b_data;
@@ -1731,7 +2016,7 @@ static int ocfs2_xattr_ibody_set(struct inode *inode,
1731 } 2016 }
1732 } 2017 }
1733 2018
1734 ret = ocfs2_xattr_set_entry(inode, xi, xs, 2019 ret = ocfs2_xattr_set_entry(inode, xi, xs, ctxt,
1735 (OCFS2_INLINE_XATTR_FL | OCFS2_HAS_XATTR_FL)); 2020 (OCFS2_INLINE_XATTR_FL | OCFS2_HAS_XATTR_FL));
1736out: 2021out:
1737 up_write(&oi->ip_alloc_sem); 2022 up_write(&oi->ip_alloc_sem);
@@ -1758,19 +2043,15 @@ static int ocfs2_xattr_block_find(struct inode *inode,
1758 if (!di->i_xattr_loc) 2043 if (!di->i_xattr_loc)
1759 return ret; 2044 return ret;
1760 2045
1761 ret = ocfs2_read_block(inode, le64_to_cpu(di->i_xattr_loc), &blk_bh); 2046 ret = ocfs2_read_xattr_block(inode, le64_to_cpu(di->i_xattr_loc),
2047 &blk_bh);
1762 if (ret < 0) { 2048 if (ret < 0) {
1763 mlog_errno(ret); 2049 mlog_errno(ret);
1764 return ret; 2050 return ret;
1765 } 2051 }
1766 2052
1767 xb = (struct ocfs2_xattr_block *)blk_bh->b_data;
1768 if (!OCFS2_IS_VALID_XATTR_BLOCK(xb)) {
1769 ret = -EIO;
1770 goto cleanup;
1771 }
1772
1773 xs->xattr_bh = blk_bh; 2053 xs->xattr_bh = blk_bh;
2054 xb = (struct ocfs2_xattr_block *)blk_bh->b_data;
1774 2055
1775 if (!(le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED)) { 2056 if (!(le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED)) {
1776 xs->header = &xb->xb_attrs.xb_header; 2057 xs->header = &xb->xb_attrs.xb_header;
@@ -1804,13 +2085,13 @@ cleanup:
1804 */ 2085 */
1805static int ocfs2_xattr_block_set(struct inode *inode, 2086static int ocfs2_xattr_block_set(struct inode *inode,
1806 struct ocfs2_xattr_info *xi, 2087 struct ocfs2_xattr_info *xi,
1807 struct ocfs2_xattr_search *xs) 2088 struct ocfs2_xattr_search *xs,
2089 struct ocfs2_xattr_set_ctxt *ctxt)
1808{ 2090{
1809 struct buffer_head *new_bh = NULL; 2091 struct buffer_head *new_bh = NULL;
1810 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); 2092 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
1811 struct ocfs2_dinode *di = (struct ocfs2_dinode *)xs->inode_bh->b_data; 2093 struct ocfs2_dinode *di = (struct ocfs2_dinode *)xs->inode_bh->b_data;
1812 struct ocfs2_alloc_context *meta_ac = NULL; 2094 handle_t *handle = ctxt->handle;
1813 handle_t *handle = NULL;
1814 struct ocfs2_xattr_block *xblk = NULL; 2095 struct ocfs2_xattr_block *xblk = NULL;
1815 u16 suballoc_bit_start; 2096 u16 suballoc_bit_start;
1816 u32 num_got; 2097 u32 num_got;
@@ -1818,45 +2099,29 @@ static int ocfs2_xattr_block_set(struct inode *inode,
1818 int ret; 2099 int ret;
1819 2100
1820 if (!xs->xattr_bh) { 2101 if (!xs->xattr_bh) {
1821 /* 2102 ret = ocfs2_journal_access_di(handle, inode, xs->inode_bh,
1822 * Alloc one external block for extended attribute 2103 OCFS2_JOURNAL_ACCESS_CREATE);
1823 * outside of inode.
1824 */
1825 ret = ocfs2_reserve_new_metadata_blocks(osb, 1, &meta_ac);
1826 if (ret < 0) { 2104 if (ret < 0) {
1827 mlog_errno(ret); 2105 mlog_errno(ret);
1828 goto out; 2106 goto end;
1829 }
1830 handle = ocfs2_start_trans(osb,
1831 OCFS2_XATTR_BLOCK_CREATE_CREDITS);
1832 if (IS_ERR(handle)) {
1833 ret = PTR_ERR(handle);
1834 mlog_errno(ret);
1835 goto out;
1836 }
1837 ret = ocfs2_journal_access(handle, inode, xs->inode_bh,
1838 OCFS2_JOURNAL_ACCESS_CREATE);
1839 if (ret < 0) {
1840 mlog_errno(ret);
1841 goto out_commit;
1842 } 2107 }
1843 2108
1844 ret = ocfs2_claim_metadata(osb, handle, meta_ac, 1, 2109 ret = ocfs2_claim_metadata(osb, handle, ctxt->meta_ac, 1,
1845 &suballoc_bit_start, &num_got, 2110 &suballoc_bit_start, &num_got,
1846 &first_blkno); 2111 &first_blkno);
1847 if (ret < 0) { 2112 if (ret < 0) {
1848 mlog_errno(ret); 2113 mlog_errno(ret);
1849 goto out_commit; 2114 goto end;
1850 } 2115 }
1851 2116
1852 new_bh = sb_getblk(inode->i_sb, first_blkno); 2117 new_bh = sb_getblk(inode->i_sb, first_blkno);
1853 ocfs2_set_new_buffer_uptodate(inode, new_bh); 2118 ocfs2_set_new_buffer_uptodate(inode, new_bh);
1854 2119
1855 ret = ocfs2_journal_access(handle, inode, new_bh, 2120 ret = ocfs2_journal_access_xb(handle, inode, new_bh,
1856 OCFS2_JOURNAL_ACCESS_CREATE); 2121 OCFS2_JOURNAL_ACCESS_CREATE);
1857 if (ret < 0) { 2122 if (ret < 0) {
1858 mlog_errno(ret); 2123 mlog_errno(ret);
1859 goto out_commit; 2124 goto end;
1860 } 2125 }
1861 2126
1862 /* Initialize ocfs2_xattr_block */ 2127 /* Initialize ocfs2_xattr_block */
@@ -1874,44 +2139,555 @@ static int ocfs2_xattr_block_set(struct inode *inode,
1874 xs->end = (void *)xblk + inode->i_sb->s_blocksize; 2139 xs->end = (void *)xblk + inode->i_sb->s_blocksize;
1875 xs->here = xs->header->xh_entries; 2140 xs->here = xs->header->xh_entries;
1876 2141
1877
1878 ret = ocfs2_journal_dirty(handle, new_bh); 2142 ret = ocfs2_journal_dirty(handle, new_bh);
1879 if (ret < 0) { 2143 if (ret < 0) {
1880 mlog_errno(ret); 2144 mlog_errno(ret);
1881 goto out_commit; 2145 goto end;
1882 } 2146 }
1883 di->i_xattr_loc = cpu_to_le64(first_blkno); 2147 di->i_xattr_loc = cpu_to_le64(first_blkno);
1884 ret = ocfs2_journal_dirty(handle, xs->inode_bh); 2148 ocfs2_journal_dirty(handle, xs->inode_bh);
1885 if (ret < 0)
1886 mlog_errno(ret);
1887out_commit:
1888 ocfs2_commit_trans(osb, handle);
1889out:
1890 if (meta_ac)
1891 ocfs2_free_alloc_context(meta_ac);
1892 if (ret < 0)
1893 return ret;
1894 } else 2149 } else
1895 xblk = (struct ocfs2_xattr_block *)xs->xattr_bh->b_data; 2150 xblk = (struct ocfs2_xattr_block *)xs->xattr_bh->b_data;
1896 2151
1897 if (!(le16_to_cpu(xblk->xb_flags) & OCFS2_XATTR_INDEXED)) { 2152 if (!(le16_to_cpu(xblk->xb_flags) & OCFS2_XATTR_INDEXED)) {
1898 /* Set extended attribute into external block */ 2153 /* Set extended attribute into external block */
1899 ret = ocfs2_xattr_set_entry(inode, xi, xs, OCFS2_HAS_XATTR_FL); 2154 ret = ocfs2_xattr_set_entry(inode, xi, xs, ctxt,
2155 OCFS2_HAS_XATTR_FL);
1900 if (!ret || ret != -ENOSPC) 2156 if (!ret || ret != -ENOSPC)
1901 goto end; 2157 goto end;
1902 2158
1903 ret = ocfs2_xattr_create_index_block(inode, xs); 2159 ret = ocfs2_xattr_create_index_block(inode, xs, ctxt);
1904 if (ret) 2160 if (ret)
1905 goto end; 2161 goto end;
1906 } 2162 }
1907 2163
1908 ret = ocfs2_xattr_set_entry_index_block(inode, xi, xs); 2164 ret = ocfs2_xattr_set_entry_index_block(inode, xi, xs, ctxt);
1909 2165
1910end: 2166end:
1911 2167
1912 return ret; 2168 return ret;
1913} 2169}
1914 2170
2171/* Check whether the new xattr can be inserted into the inode. */
2172static int ocfs2_xattr_can_be_in_inode(struct inode *inode,
2173 struct ocfs2_xattr_info *xi,
2174 struct ocfs2_xattr_search *xs)
2175{
2176 u64 value_size;
2177 struct ocfs2_xattr_entry *last;
2178 int free, i;
2179 size_t min_offs = xs->end - xs->base;
2180
2181 if (!xs->header)
2182 return 0;
2183
2184 last = xs->header->xh_entries;
2185
2186 for (i = 0; i < le16_to_cpu(xs->header->xh_count); i++) {
2187 size_t offs = le16_to_cpu(last->xe_name_offset);
2188 if (offs < min_offs)
2189 min_offs = offs;
2190 last += 1;
2191 }
2192
2193 free = min_offs - ((void *)last - xs->base) - sizeof(__u32);
2194 if (free < 0)
2195 return 0;
2196
2197 BUG_ON(!xs->not_found);
2198
2199 if (xi->value_len > OCFS2_XATTR_INLINE_SIZE)
2200 value_size = OCFS2_XATTR_ROOT_SIZE;
2201 else
2202 value_size = OCFS2_XATTR_SIZE(xi->value_len);
2203
2204 if (free >= sizeof(struct ocfs2_xattr_entry) +
2205 OCFS2_XATTR_SIZE(strlen(xi->name)) + value_size)
2206 return 1;
2207
2208 return 0;
2209}
2210
2211static int ocfs2_calc_xattr_set_need(struct inode *inode,
2212 struct ocfs2_dinode *di,
2213 struct ocfs2_xattr_info *xi,
2214 struct ocfs2_xattr_search *xis,
2215 struct ocfs2_xattr_search *xbs,
2216 int *clusters_need,
2217 int *meta_need,
2218 int *credits_need)
2219{
2220 int ret = 0, old_in_xb = 0;
2221 int clusters_add = 0, meta_add = 0, credits = 0;
2222 struct buffer_head *bh = NULL;
2223 struct ocfs2_xattr_block *xb = NULL;
2224 struct ocfs2_xattr_entry *xe = NULL;
2225 struct ocfs2_xattr_value_root *xv = NULL;
2226 char *base = NULL;
2227 int name_offset, name_len = 0;
2228 u32 new_clusters = ocfs2_clusters_for_bytes(inode->i_sb,
2229 xi->value_len);
2230 u64 value_size;
2231
2232 /*
2233 * Calculate the clusters we need to write.
2234 * No matter whether we replace an old one or add a new one,
2235 * we need this for writing.
2236 */
2237 if (xi->value_len > OCFS2_XATTR_INLINE_SIZE)
2238 credits += new_clusters *
2239 ocfs2_clusters_to_blocks(inode->i_sb, 1);
2240
2241 if (xis->not_found && xbs->not_found) {
2242 credits += ocfs2_blocks_per_xattr_bucket(inode->i_sb);
2243
2244 if (xi->value_len > OCFS2_XATTR_INLINE_SIZE) {
2245 clusters_add += new_clusters;
2246 credits += ocfs2_calc_extend_credits(inode->i_sb,
2247 &def_xv.xv.xr_list,
2248 new_clusters);
2249 }
2250
2251 goto meta_guess;
2252 }
2253
2254 if (!xis->not_found) {
2255 xe = xis->here;
2256 name_offset = le16_to_cpu(xe->xe_name_offset);
2257 name_len = OCFS2_XATTR_SIZE(xe->xe_name_len);
2258 base = xis->base;
2259 credits += OCFS2_INODE_UPDATE_CREDITS;
2260 } else {
2261 int i, block_off = 0;
2262 xb = (struct ocfs2_xattr_block *)xbs->xattr_bh->b_data;
2263 xe = xbs->here;
2264 name_offset = le16_to_cpu(xe->xe_name_offset);
2265 name_len = OCFS2_XATTR_SIZE(xe->xe_name_len);
2266 i = xbs->here - xbs->header->xh_entries;
2267 old_in_xb = 1;
2268
2269 if (le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED) {
2270 ret = ocfs2_xattr_bucket_get_name_value(inode,
2271 bucket_xh(xbs->bucket),
2272 i, &block_off,
2273 &name_offset);
2274 base = bucket_block(xbs->bucket, block_off);
2275 credits += ocfs2_blocks_per_xattr_bucket(inode->i_sb);
2276 } else {
2277 base = xbs->base;
2278 credits += OCFS2_XATTR_BLOCK_UPDATE_CREDITS;
2279 }
2280 }
2281
2282 /*
2283 * delete a xattr doesn't need metadata and cluster allocation.
2284 * so just calculate the credits and return.
2285 *
2286 * The credits for removing the value tree will be extended
2287 * by ocfs2_remove_extent itself.
2288 */
2289 if (!xi->value) {
2290 if (!ocfs2_xattr_is_local(xe))
2291 credits += ocfs2_remove_extent_credits(inode->i_sb);
2292
2293 goto out;
2294 }
2295
2296 /* do cluster allocation guess first. */
2297 value_size = le64_to_cpu(xe->xe_value_size);
2298
2299 if (old_in_xb) {
2300 /*
2301 * In xattr set, we always try to set the xe in inode first,
2302 * so if it can be inserted into inode successfully, the old
2303 * one will be removed from the xattr block, and this xattr
2304 * will be inserted into inode as a new xattr in inode.
2305 */
2306 if (ocfs2_xattr_can_be_in_inode(inode, xi, xis)) {
2307 clusters_add += new_clusters;
2308 credits += ocfs2_remove_extent_credits(inode->i_sb) +
2309 OCFS2_INODE_UPDATE_CREDITS;
2310 if (!ocfs2_xattr_is_local(xe))
2311 credits += ocfs2_calc_extend_credits(
2312 inode->i_sb,
2313 &def_xv.xv.xr_list,
2314 new_clusters);
2315 goto out;
2316 }
2317 }
2318
2319 if (xi->value_len > OCFS2_XATTR_INLINE_SIZE) {
2320 /* the new values will be stored outside. */
2321 u32 old_clusters = 0;
2322
2323 if (!ocfs2_xattr_is_local(xe)) {
2324 old_clusters = ocfs2_clusters_for_bytes(inode->i_sb,
2325 value_size);
2326 xv = (struct ocfs2_xattr_value_root *)
2327 (base + name_offset + name_len);
2328 value_size = OCFS2_XATTR_ROOT_SIZE;
2329 } else
2330 xv = &def_xv.xv;
2331
2332 if (old_clusters >= new_clusters) {
2333 credits += ocfs2_remove_extent_credits(inode->i_sb);
2334 goto out;
2335 } else {
2336 meta_add += ocfs2_extend_meta_needed(&xv->xr_list);
2337 clusters_add += new_clusters - old_clusters;
2338 credits += ocfs2_calc_extend_credits(inode->i_sb,
2339 &xv->xr_list,
2340 new_clusters -
2341 old_clusters);
2342 if (value_size >= OCFS2_XATTR_ROOT_SIZE)
2343 goto out;
2344 }
2345 } else {
2346 /*
2347 * Now the new value will be stored inside. So if the new
2348 * value is smaller than the size of value root or the old
2349 * value, we don't need any allocation, otherwise we have
2350 * to guess metadata allocation.
2351 */
2352 if ((ocfs2_xattr_is_local(xe) && value_size >= xi->value_len) ||
2353 (!ocfs2_xattr_is_local(xe) &&
2354 OCFS2_XATTR_ROOT_SIZE >= xi->value_len))
2355 goto out;
2356 }
2357
2358meta_guess:
2359 /* calculate metadata allocation. */
2360 if (di->i_xattr_loc) {
2361 if (!xbs->xattr_bh) {
2362 ret = ocfs2_read_xattr_block(inode,
2363 le64_to_cpu(di->i_xattr_loc),
2364 &bh);
2365 if (ret) {
2366 mlog_errno(ret);
2367 goto out;
2368 }
2369
2370 xb = (struct ocfs2_xattr_block *)bh->b_data;
2371 } else
2372 xb = (struct ocfs2_xattr_block *)xbs->xattr_bh->b_data;
2373
2374 /*
2375 * If there is already an xattr tree, good, we can calculate
2376 * like other b-trees. Otherwise we may have the chance of
2377 * create a tree, the credit calculation is borrowed from
2378 * ocfs2_calc_extend_credits with root_el = NULL. And the
2379 * new tree will be cluster based, so no meta is needed.
2380 */
2381 if (le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED) {
2382 struct ocfs2_extent_list *el =
2383 &xb->xb_attrs.xb_root.xt_list;
2384 meta_add += ocfs2_extend_meta_needed(el);
2385 credits += ocfs2_calc_extend_credits(inode->i_sb,
2386 el, 1);
2387 } else
2388 credits += OCFS2_SUBALLOC_ALLOC + 1;
2389
2390 /*
2391 * This cluster will be used either for new bucket or for
2392 * new xattr block.
2393 * If the cluster size is the same as the bucket size, one
2394 * more is needed since we may need to extend the bucket
2395 * also.
2396 */
2397 clusters_add += 1;
2398 credits += ocfs2_blocks_per_xattr_bucket(inode->i_sb);
2399 if (OCFS2_XATTR_BUCKET_SIZE ==
2400 OCFS2_SB(inode->i_sb)->s_clustersize) {
2401 credits += ocfs2_blocks_per_xattr_bucket(inode->i_sb);
2402 clusters_add += 1;
2403 }
2404 } else {
2405 meta_add += 1;
2406 credits += OCFS2_XATTR_BLOCK_CREATE_CREDITS;
2407 }
2408out:
2409 if (clusters_need)
2410 *clusters_need = clusters_add;
2411 if (meta_need)
2412 *meta_need = meta_add;
2413 if (credits_need)
2414 *credits_need = credits;
2415 brelse(bh);
2416 return ret;
2417}
2418
2419static int ocfs2_init_xattr_set_ctxt(struct inode *inode,
2420 struct ocfs2_dinode *di,
2421 struct ocfs2_xattr_info *xi,
2422 struct ocfs2_xattr_search *xis,
2423 struct ocfs2_xattr_search *xbs,
2424 struct ocfs2_xattr_set_ctxt *ctxt,
2425 int *credits)
2426{
2427 int clusters_add, meta_add, ret;
2428 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
2429
2430 memset(ctxt, 0, sizeof(struct ocfs2_xattr_set_ctxt));
2431
2432 ocfs2_init_dealloc_ctxt(&ctxt->dealloc);
2433
2434 ret = ocfs2_calc_xattr_set_need(inode, di, xi, xis, xbs,
2435 &clusters_add, &meta_add, credits);
2436 if (ret) {
2437 mlog_errno(ret);
2438 return ret;
2439 }
2440
2441 mlog(0, "Set xattr %s, reserve meta blocks = %d, clusters = %d, "
2442 "credits = %d\n", xi->name, meta_add, clusters_add, *credits);
2443
2444 if (meta_add) {
2445 ret = ocfs2_reserve_new_metadata_blocks(osb, meta_add,
2446 &ctxt->meta_ac);
2447 if (ret) {
2448 mlog_errno(ret);
2449 goto out;
2450 }
2451 }
2452
2453 if (clusters_add) {
2454 ret = ocfs2_reserve_clusters(osb, clusters_add, &ctxt->data_ac);
2455 if (ret)
2456 mlog_errno(ret);
2457 }
2458out:
2459 if (ret) {
2460 if (ctxt->meta_ac) {
2461 ocfs2_free_alloc_context(ctxt->meta_ac);
2462 ctxt->meta_ac = NULL;
2463 }
2464
2465 /*
2466 * We cannot have an error and a non null ctxt->data_ac.
2467 */
2468 }
2469
2470 return ret;
2471}
2472
2473static int __ocfs2_xattr_set_handle(struct inode *inode,
2474 struct ocfs2_dinode *di,
2475 struct ocfs2_xattr_info *xi,
2476 struct ocfs2_xattr_search *xis,
2477 struct ocfs2_xattr_search *xbs,
2478 struct ocfs2_xattr_set_ctxt *ctxt)
2479{
2480 int ret = 0, credits, old_found;
2481
2482 if (!xi->value) {
2483 /* Remove existing extended attribute */
2484 if (!xis->not_found)
2485 ret = ocfs2_xattr_ibody_set(inode, xi, xis, ctxt);
2486 else if (!xbs->not_found)
2487 ret = ocfs2_xattr_block_set(inode, xi, xbs, ctxt);
2488 } else {
2489 /* We always try to set extended attribute into inode first*/
2490 ret = ocfs2_xattr_ibody_set(inode, xi, xis, ctxt);
2491 if (!ret && !xbs->not_found) {
2492 /*
2493 * If succeed and that extended attribute existing in
2494 * external block, then we will remove it.
2495 */
2496 xi->value = NULL;
2497 xi->value_len = 0;
2498
2499 old_found = xis->not_found;
2500 xis->not_found = -ENODATA;
2501 ret = ocfs2_calc_xattr_set_need(inode,
2502 di,
2503 xi,
2504 xis,
2505 xbs,
2506 NULL,
2507 NULL,
2508 &credits);
2509 xis->not_found = old_found;
2510 if (ret) {
2511 mlog_errno(ret);
2512 goto out;
2513 }
2514
2515 ret = ocfs2_extend_trans(ctxt->handle, credits +
2516 ctxt->handle->h_buffer_credits);
2517 if (ret) {
2518 mlog_errno(ret);
2519 goto out;
2520 }
2521 ret = ocfs2_xattr_block_set(inode, xi, xbs, ctxt);
2522 } else if (ret == -ENOSPC) {
2523 if (di->i_xattr_loc && !xbs->xattr_bh) {
2524 ret = ocfs2_xattr_block_find(inode,
2525 xi->name_index,
2526 xi->name, xbs);
2527 if (ret)
2528 goto out;
2529
2530 old_found = xis->not_found;
2531 xis->not_found = -ENODATA;
2532 ret = ocfs2_calc_xattr_set_need(inode,
2533 di,
2534 xi,
2535 xis,
2536 xbs,
2537 NULL,
2538 NULL,
2539 &credits);
2540 xis->not_found = old_found;
2541 if (ret) {
2542 mlog_errno(ret);
2543 goto out;
2544 }
2545
2546 ret = ocfs2_extend_trans(ctxt->handle, credits +
2547 ctxt->handle->h_buffer_credits);
2548 if (ret) {
2549 mlog_errno(ret);
2550 goto out;
2551 }
2552 }
2553 /*
2554 * If no space in inode, we will set extended attribute
2555 * into external block.
2556 */
2557 ret = ocfs2_xattr_block_set(inode, xi, xbs, ctxt);
2558 if (ret)
2559 goto out;
2560 if (!xis->not_found) {
2561 /*
2562 * If succeed and that extended attribute
2563 * existing in inode, we will remove it.
2564 */
2565 xi->value = NULL;
2566 xi->value_len = 0;
2567 xbs->not_found = -ENODATA;
2568 ret = ocfs2_calc_xattr_set_need(inode,
2569 di,
2570 xi,
2571 xis,
2572 xbs,
2573 NULL,
2574 NULL,
2575 &credits);
2576 if (ret) {
2577 mlog_errno(ret);
2578 goto out;
2579 }
2580
2581 ret = ocfs2_extend_trans(ctxt->handle, credits +
2582 ctxt->handle->h_buffer_credits);
2583 if (ret) {
2584 mlog_errno(ret);
2585 goto out;
2586 }
2587 ret = ocfs2_xattr_ibody_set(inode, xi,
2588 xis, ctxt);
2589 }
2590 }
2591 }
2592
2593 if (!ret) {
2594 /* Update inode ctime. */
2595 ret = ocfs2_journal_access(ctxt->handle, inode, xis->inode_bh,
2596 OCFS2_JOURNAL_ACCESS_WRITE);
2597 if (ret) {
2598 mlog_errno(ret);
2599 goto out;
2600 }
2601
2602 inode->i_ctime = CURRENT_TIME;
2603 di->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
2604 di->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
2605 ocfs2_journal_dirty(ctxt->handle, xis->inode_bh);
2606 }
2607out:
2608 return ret;
2609}
2610
2611/*
2612 * This function only called duing creating inode
2613 * for init security/acl xattrs of the new inode.
2614 * All transanction credits have been reserved in mknod.
2615 */
2616int ocfs2_xattr_set_handle(handle_t *handle,
2617 struct inode *inode,
2618 struct buffer_head *di_bh,
2619 int name_index,
2620 const char *name,
2621 const void *value,
2622 size_t value_len,
2623 int flags,
2624 struct ocfs2_alloc_context *meta_ac,
2625 struct ocfs2_alloc_context *data_ac)
2626{
2627 struct ocfs2_dinode *di;
2628 int ret;
2629
2630 struct ocfs2_xattr_info xi = {
2631 .name_index = name_index,
2632 .name = name,
2633 .value = value,
2634 .value_len = value_len,
2635 };
2636
2637 struct ocfs2_xattr_search xis = {
2638 .not_found = -ENODATA,
2639 };
2640
2641 struct ocfs2_xattr_search xbs = {
2642 .not_found = -ENODATA,
2643 };
2644
2645 struct ocfs2_xattr_set_ctxt ctxt = {
2646 .handle = handle,
2647 .meta_ac = meta_ac,
2648 .data_ac = data_ac,
2649 };
2650
2651 if (!ocfs2_supports_xattr(OCFS2_SB(inode->i_sb)))
2652 return -EOPNOTSUPP;
2653
2654 /*
2655 * In extreme situation, may need xattr bucket when
2656 * block size is too small. And we have already reserved
2657 * the credits for bucket in mknod.
2658 */
2659 if (inode->i_sb->s_blocksize == OCFS2_MIN_BLOCKSIZE) {
2660 xbs.bucket = ocfs2_xattr_bucket_new(inode);
2661 if (!xbs.bucket) {
2662 mlog_errno(-ENOMEM);
2663 return -ENOMEM;
2664 }
2665 }
2666
2667 xis.inode_bh = xbs.inode_bh = di_bh;
2668 di = (struct ocfs2_dinode *)di_bh->b_data;
2669
2670 down_write(&OCFS2_I(inode)->ip_xattr_sem);
2671
2672 ret = ocfs2_xattr_ibody_find(inode, name_index, name, &xis);
2673 if (ret)
2674 goto cleanup;
2675 if (xis.not_found) {
2676 ret = ocfs2_xattr_block_find(inode, name_index, name, &xbs);
2677 if (ret)
2678 goto cleanup;
2679 }
2680
2681 ret = __ocfs2_xattr_set_handle(inode, di, &xi, &xis, &xbs, &ctxt);
2682
2683cleanup:
2684 up_write(&OCFS2_I(inode)->ip_xattr_sem);
2685 brelse(xbs.xattr_bh);
2686 ocfs2_xattr_bucket_free(xbs.bucket);
2687
2688 return ret;
2689}
2690
1915/* 2691/*
1916 * ocfs2_xattr_set() 2692 * ocfs2_xattr_set()
1917 * 2693 *
@@ -1928,8 +2704,10 @@ int ocfs2_xattr_set(struct inode *inode,
1928{ 2704{
1929 struct buffer_head *di_bh = NULL; 2705 struct buffer_head *di_bh = NULL;
1930 struct ocfs2_dinode *di; 2706 struct ocfs2_dinode *di;
1931 int ret; 2707 int ret, credits;
1932 u16 i, blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb); 2708 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
2709 struct inode *tl_inode = osb->osb_tl_inode;
2710 struct ocfs2_xattr_set_ctxt ctxt = { NULL, NULL, };
1933 2711
1934 struct ocfs2_xattr_info xi = { 2712 struct ocfs2_xattr_info xi = {
1935 .name_index = name_index, 2713 .name_index = name_index,
@@ -1949,10 +2727,20 @@ int ocfs2_xattr_set(struct inode *inode,
1949 if (!ocfs2_supports_xattr(OCFS2_SB(inode->i_sb))) 2727 if (!ocfs2_supports_xattr(OCFS2_SB(inode->i_sb)))
1950 return -EOPNOTSUPP; 2728 return -EOPNOTSUPP;
1951 2729
2730 /*
2731 * Only xbs will be used on indexed trees. xis doesn't need a
2732 * bucket.
2733 */
2734 xbs.bucket = ocfs2_xattr_bucket_new(inode);
2735 if (!xbs.bucket) {
2736 mlog_errno(-ENOMEM);
2737 return -ENOMEM;
2738 }
2739
1952 ret = ocfs2_inode_lock(inode, &di_bh, 1); 2740 ret = ocfs2_inode_lock(inode, &di_bh, 1);
1953 if (ret < 0) { 2741 if (ret < 0) {
1954 mlog_errno(ret); 2742 mlog_errno(ret);
1955 return ret; 2743 goto cleanup_nolock;
1956 } 2744 }
1957 xis.inode_bh = xbs.inode_bh = di_bh; 2745 xis.inode_bh = xbs.inode_bh = di_bh;
1958 di = (struct ocfs2_dinode *)di_bh->b_data; 2746 di = (struct ocfs2_dinode *)di_bh->b_data;
@@ -1984,55 +2772,53 @@ int ocfs2_xattr_set(struct inode *inode,
1984 goto cleanup; 2772 goto cleanup;
1985 } 2773 }
1986 2774
1987 if (!value) { 2775
1988 /* Remove existing extended attribute */ 2776 mutex_lock(&tl_inode->i_mutex);
1989 if (!xis.not_found) 2777
1990 ret = ocfs2_xattr_ibody_set(inode, &xi, &xis); 2778 if (ocfs2_truncate_log_needs_flush(osb)) {
1991 else if (!xbs.not_found) 2779 ret = __ocfs2_flush_truncate_log(osb);
1992 ret = ocfs2_xattr_block_set(inode, &xi, &xbs); 2780 if (ret < 0) {
1993 } else { 2781 mutex_unlock(&tl_inode->i_mutex);
1994 /* We always try to set extended attribute into inode first*/ 2782 mlog_errno(ret);
1995 ret = ocfs2_xattr_ibody_set(inode, &xi, &xis); 2783 goto cleanup;
1996 if (!ret && !xbs.not_found) {
1997 /*
1998 * If succeed and that extended attribute existing in
1999 * external block, then we will remove it.
2000 */
2001 xi.value = NULL;
2002 xi.value_len = 0;
2003 ret = ocfs2_xattr_block_set(inode, &xi, &xbs);
2004 } else if (ret == -ENOSPC) {
2005 if (di->i_xattr_loc && !xbs.xattr_bh) {
2006 ret = ocfs2_xattr_block_find(inode, name_index,
2007 name, &xbs);
2008 if (ret)
2009 goto cleanup;
2010 }
2011 /*
2012 * If no space in inode, we will set extended attribute
2013 * into external block.
2014 */
2015 ret = ocfs2_xattr_block_set(inode, &xi, &xbs);
2016 if (ret)
2017 goto cleanup;
2018 if (!xis.not_found) {
2019 /*
2020 * If succeed and that extended attribute
2021 * existing in inode, we will remove it.
2022 */
2023 xi.value = NULL;
2024 xi.value_len = 0;
2025 ret = ocfs2_xattr_ibody_set(inode, &xi, &xis);
2026 }
2027 } 2784 }
2028 } 2785 }
2786 mutex_unlock(&tl_inode->i_mutex);
2787
2788 ret = ocfs2_init_xattr_set_ctxt(inode, di, &xi, &xis,
2789 &xbs, &ctxt, &credits);
2790 if (ret) {
2791 mlog_errno(ret);
2792 goto cleanup;
2793 }
2794
2795 /* we need to update inode's ctime field, so add credit for it. */
2796 credits += OCFS2_INODE_UPDATE_CREDITS;
2797 ctxt.handle = ocfs2_start_trans(osb, credits);
2798 if (IS_ERR(ctxt.handle)) {
2799 ret = PTR_ERR(ctxt.handle);
2800 mlog_errno(ret);
2801 goto cleanup;
2802 }
2803
2804 ret = __ocfs2_xattr_set_handle(inode, di, &xi, &xis, &xbs, &ctxt);
2805
2806 ocfs2_commit_trans(osb, ctxt.handle);
2807
2808 if (ctxt.data_ac)
2809 ocfs2_free_alloc_context(ctxt.data_ac);
2810 if (ctxt.meta_ac)
2811 ocfs2_free_alloc_context(ctxt.meta_ac);
2812 if (ocfs2_dealloc_has_cluster(&ctxt.dealloc))
2813 ocfs2_schedule_truncate_log_flush(osb, 1);
2814 ocfs2_run_deallocs(osb, &ctxt.dealloc);
2029cleanup: 2815cleanup:
2030 up_write(&OCFS2_I(inode)->ip_xattr_sem); 2816 up_write(&OCFS2_I(inode)->ip_xattr_sem);
2031 ocfs2_inode_unlock(inode, 1); 2817 ocfs2_inode_unlock(inode, 1);
2818cleanup_nolock:
2032 brelse(di_bh); 2819 brelse(di_bh);
2033 brelse(xbs.xattr_bh); 2820 brelse(xbs.xattr_bh);
2034 for (i = 0; i < blk_per_bucket; i++) 2821 ocfs2_xattr_bucket_free(xbs.bucket);
2035 brelse(xbs.bucket.bhs[i]);
2036 2822
2037 return ret; 2823 return ret;
2038} 2824}
@@ -2107,7 +2893,7 @@ typedef int (xattr_bucket_func)(struct inode *inode,
2107 void *para); 2893 void *para);
2108 2894
2109static int ocfs2_find_xe_in_bucket(struct inode *inode, 2895static int ocfs2_find_xe_in_bucket(struct inode *inode,
2110 struct buffer_head *header_bh, 2896 struct ocfs2_xattr_bucket *bucket,
2111 int name_index, 2897 int name_index,
2112 const char *name, 2898 const char *name,
2113 u32 name_hash, 2899 u32 name_hash,
@@ -2115,11 +2901,9 @@ static int ocfs2_find_xe_in_bucket(struct inode *inode,
2115 int *found) 2901 int *found)
2116{ 2902{
2117 int i, ret = 0, cmp = 1, block_off, new_offset; 2903 int i, ret = 0, cmp = 1, block_off, new_offset;
2118 struct ocfs2_xattr_header *xh = 2904 struct ocfs2_xattr_header *xh = bucket_xh(bucket);
2119 (struct ocfs2_xattr_header *)header_bh->b_data;
2120 size_t name_len = strlen(name); 2905 size_t name_len = strlen(name);
2121 struct ocfs2_xattr_entry *xe = NULL; 2906 struct ocfs2_xattr_entry *xe = NULL;
2122 struct buffer_head *name_bh = NULL;
2123 char *xe_name; 2907 char *xe_name;
2124 2908
2125 /* 2909 /*
@@ -2150,19 +2934,9 @@ static int ocfs2_find_xe_in_bucket(struct inode *inode,
2150 break; 2934 break;
2151 } 2935 }
2152 2936
2153 ret = ocfs2_read_block(inode, header_bh->b_blocknr + block_off,
2154 &name_bh);
2155 if (ret) {
2156 mlog_errno(ret);
2157 break;
2158 }
2159 xe_name = name_bh->b_data + new_offset;
2160 2937
2161 cmp = memcmp(name, xe_name, name_len); 2938 xe_name = bucket_block(bucket, block_off) + new_offset;
2162 brelse(name_bh); 2939 if (!memcmp(name, xe_name, name_len)) {
2163 name_bh = NULL;
2164
2165 if (cmp == 0) {
2166 *xe_index = i; 2940 *xe_index = i;
2167 *found = 1; 2941 *found = 1;
2168 ret = 0; 2942 ret = 0;
@@ -2192,39 +2966,42 @@ static int ocfs2_xattr_bucket_find(struct inode *inode,
2192 struct ocfs2_xattr_search *xs) 2966 struct ocfs2_xattr_search *xs)
2193{ 2967{
2194 int ret, found = 0; 2968 int ret, found = 0;
2195 struct buffer_head *bh = NULL;
2196 struct buffer_head *lower_bh = NULL;
2197 struct ocfs2_xattr_header *xh = NULL; 2969 struct ocfs2_xattr_header *xh = NULL;
2198 struct ocfs2_xattr_entry *xe = NULL; 2970 struct ocfs2_xattr_entry *xe = NULL;
2199 u16 index = 0; 2971 u16 index = 0;
2200 u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb); 2972 u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
2201 int low_bucket = 0, bucket, high_bucket; 2973 int low_bucket = 0, bucket, high_bucket;
2974 struct ocfs2_xattr_bucket *search;
2202 u32 last_hash; 2975 u32 last_hash;
2203 u64 blkno; 2976 u64 blkno, lower_blkno = 0;
2204 2977
2205 ret = ocfs2_read_block(inode, p_blkno, &bh); 2978 search = ocfs2_xattr_bucket_new(inode);
2979 if (!search) {
2980 ret = -ENOMEM;
2981 mlog_errno(ret);
2982 goto out;
2983 }
2984
2985 ret = ocfs2_read_xattr_bucket(search, p_blkno);
2206 if (ret) { 2986 if (ret) {
2207 mlog_errno(ret); 2987 mlog_errno(ret);
2208 goto out; 2988 goto out;
2209 } 2989 }
2210 2990
2211 xh = (struct ocfs2_xattr_header *)bh->b_data; 2991 xh = bucket_xh(search);
2212 high_bucket = le16_to_cpu(xh->xh_num_buckets) - 1; 2992 high_bucket = le16_to_cpu(xh->xh_num_buckets) - 1;
2213
2214 while (low_bucket <= high_bucket) { 2993 while (low_bucket <= high_bucket) {
2215 brelse(bh); 2994 ocfs2_xattr_bucket_relse(search);
2216 bh = NULL;
2217 bucket = (low_bucket + high_bucket) / 2;
2218 2995
2996 bucket = (low_bucket + high_bucket) / 2;
2219 blkno = p_blkno + bucket * blk_per_bucket; 2997 blkno = p_blkno + bucket * blk_per_bucket;
2220 2998 ret = ocfs2_read_xattr_bucket(search, blkno);
2221 ret = ocfs2_read_block(inode, blkno, &bh);
2222 if (ret) { 2999 if (ret) {
2223 mlog_errno(ret); 3000 mlog_errno(ret);
2224 goto out; 3001 goto out;
2225 } 3002 }
2226 3003
2227 xh = (struct ocfs2_xattr_header *)bh->b_data; 3004 xh = bucket_xh(search);
2228 xe = &xh->xh_entries[0]; 3005 xe = &xh->xh_entries[0];
2229 if (name_hash < le32_to_cpu(xe->xe_name_hash)) { 3006 if (name_hash < le32_to_cpu(xe->xe_name_hash)) {
2230 high_bucket = bucket - 1; 3007 high_bucket = bucket - 1;
@@ -2241,10 +3018,8 @@ static int ocfs2_xattr_bucket_find(struct inode *inode,
2241 3018
2242 last_hash = le32_to_cpu(xe->xe_name_hash); 3019 last_hash = le32_to_cpu(xe->xe_name_hash);
2243 3020
2244 /* record lower_bh which may be the insert place. */ 3021 /* record lower_blkno which may be the insert place. */
2245 brelse(lower_bh); 3022 lower_blkno = blkno;
2246 lower_bh = bh;
2247 bh = NULL;
2248 3023
2249 if (name_hash > le32_to_cpu(xe->xe_name_hash)) { 3024 if (name_hash > le32_to_cpu(xe->xe_name_hash)) {
2250 low_bucket = bucket + 1; 3025 low_bucket = bucket + 1;
@@ -2252,7 +3027,7 @@ static int ocfs2_xattr_bucket_find(struct inode *inode,
2252 } 3027 }
2253 3028
2254 /* the searched xattr should reside in this bucket if exists. */ 3029 /* the searched xattr should reside in this bucket if exists. */
2255 ret = ocfs2_find_xe_in_bucket(inode, lower_bh, 3030 ret = ocfs2_find_xe_in_bucket(inode, search,
2256 name_index, name, name_hash, 3031 name_index, name, name_hash,
2257 &index, &found); 3032 &index, &found);
2258 if (ret) { 3033 if (ret) {
@@ -2267,46 +3042,29 @@ static int ocfs2_xattr_bucket_find(struct inode *inode,
2267 * When the xattr's hash value is in the gap of 2 buckets, we will 3042 * When the xattr's hash value is in the gap of 2 buckets, we will
2268 * always set it to the previous bucket. 3043 * always set it to the previous bucket.
2269 */ 3044 */
2270 if (!lower_bh) { 3045 if (!lower_blkno)
2271 /* 3046 lower_blkno = p_blkno;
2272 * We can't find any bucket whose first name_hash is less 3047
2273 * than the find name_hash. 3048 /* This should be in cache - we just read it during the search */
2274 */ 3049 ret = ocfs2_read_xattr_bucket(xs->bucket, lower_blkno);
2275 BUG_ON(bh->b_blocknr != p_blkno); 3050 if (ret) {
2276 lower_bh = bh; 3051 mlog_errno(ret);
2277 bh = NULL; 3052 goto out;
2278 } 3053 }
2279 xs->bucket.bhs[0] = lower_bh;
2280 xs->bucket.xh = (struct ocfs2_xattr_header *)
2281 xs->bucket.bhs[0]->b_data;
2282 lower_bh = NULL;
2283 3054
2284 xs->header = xs->bucket.xh; 3055 xs->header = bucket_xh(xs->bucket);
2285 xs->base = xs->bucket.bhs[0]->b_data; 3056 xs->base = bucket_block(xs->bucket, 0);
2286 xs->end = xs->base + inode->i_sb->s_blocksize; 3057 xs->end = xs->base + inode->i_sb->s_blocksize;
2287 3058
2288 if (found) { 3059 if (found) {
2289 /*
2290 * If we have found the xattr enty, read all the blocks in
2291 * this bucket.
2292 */
2293 ret = ocfs2_read_blocks(inode, xs->bucket.bhs[0]->b_blocknr + 1,
2294 blk_per_bucket - 1, &xs->bucket.bhs[1],
2295 0);
2296 if (ret) {
2297 mlog_errno(ret);
2298 goto out;
2299 }
2300
2301 xs->here = &xs->header->xh_entries[index]; 3060 xs->here = &xs->header->xh_entries[index];
2302 mlog(0, "find xattr %s in bucket %llu, entry = %u\n", name, 3061 mlog(0, "find xattr %s in bucket %llu, entry = %u\n", name,
2303 (unsigned long long)xs->bucket.bhs[0]->b_blocknr, index); 3062 (unsigned long long)bucket_blkno(xs->bucket), index);
2304 } else 3063 } else
2305 ret = -ENODATA; 3064 ret = -ENODATA;
2306 3065
2307out: 3066out:
2308 brelse(bh); 3067 ocfs2_xattr_bucket_free(search);
2309 brelse(lower_bh);
2310 return ret; 3068 return ret;
2311} 3069}
2312 3070
@@ -2357,53 +3115,50 @@ static int ocfs2_iterate_xattr_buckets(struct inode *inode,
2357 xattr_bucket_func *func, 3115 xattr_bucket_func *func,
2358 void *para) 3116 void *para)
2359{ 3117{
2360 int i, j, ret = 0; 3118 int i, ret = 0;
2361 int blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
2362 u32 bpc = ocfs2_xattr_buckets_per_cluster(OCFS2_SB(inode->i_sb)); 3119 u32 bpc = ocfs2_xattr_buckets_per_cluster(OCFS2_SB(inode->i_sb));
2363 u32 num_buckets = clusters * bpc; 3120 u32 num_buckets = clusters * bpc;
2364 struct ocfs2_xattr_bucket bucket; 3121 struct ocfs2_xattr_bucket *bucket;
2365 3122
2366 memset(&bucket, 0, sizeof(bucket)); 3123 bucket = ocfs2_xattr_bucket_new(inode);
3124 if (!bucket) {
3125 mlog_errno(-ENOMEM);
3126 return -ENOMEM;
3127 }
2367 3128
2368 mlog(0, "iterating xattr buckets in %u clusters starting from %llu\n", 3129 mlog(0, "iterating xattr buckets in %u clusters starting from %llu\n",
2369 clusters, (unsigned long long)blkno); 3130 clusters, (unsigned long long)blkno);
2370 3131
2371 for (i = 0; i < num_buckets; i++, blkno += blk_per_bucket) { 3132 for (i = 0; i < num_buckets; i++, blkno += bucket->bu_blocks) {
2372 ret = ocfs2_read_blocks(inode, blkno, blk_per_bucket, 3133 ret = ocfs2_read_xattr_bucket(bucket, blkno);
2373 bucket.bhs, 0);
2374 if (ret) { 3134 if (ret) {
2375 mlog_errno(ret); 3135 mlog_errno(ret);
2376 goto out; 3136 break;
2377 } 3137 }
2378 3138
2379 bucket.xh = (struct ocfs2_xattr_header *)bucket.bhs[0]->b_data;
2380 /* 3139 /*
2381 * The real bucket num in this series of blocks is stored 3140 * The real bucket num in this series of blocks is stored
2382 * in the 1st bucket. 3141 * in the 1st bucket.
2383 */ 3142 */
2384 if (i == 0) 3143 if (i == 0)
2385 num_buckets = le16_to_cpu(bucket.xh->xh_num_buckets); 3144 num_buckets = le16_to_cpu(bucket_xh(bucket)->xh_num_buckets);
2386 3145
2387 mlog(0, "iterating xattr bucket %llu, first hash %u\n", 3146 mlog(0, "iterating xattr bucket %llu, first hash %u\n",
2388 (unsigned long long)blkno, 3147 (unsigned long long)blkno,
2389 le32_to_cpu(bucket.xh->xh_entries[0].xe_name_hash)); 3148 le32_to_cpu(bucket_xh(bucket)->xh_entries[0].xe_name_hash));
2390 if (func) { 3149 if (func) {
2391 ret = func(inode, &bucket, para); 3150 ret = func(inode, bucket, para);
2392 if (ret) { 3151 if (ret)
2393 mlog_errno(ret); 3152 mlog_errno(ret);
2394 break; 3153 /* Fall through to bucket_relse() */
2395 }
2396 } 3154 }
2397 3155
2398 for (j = 0; j < blk_per_bucket; j++) 3156 ocfs2_xattr_bucket_relse(bucket);
2399 brelse(bucket.bhs[j]); 3157 if (ret)
2400 memset(&bucket, 0, sizeof(bucket)); 3158 break;
2401 } 3159 }
2402 3160
2403out: 3161 ocfs2_xattr_bucket_free(bucket);
2404 for (j = 0; j < blk_per_bucket; j++)
2405 brelse(bucket.bhs[j]);
2406
2407 return ret; 3162 return ret;
2408} 3163}
2409 3164
@@ -2441,21 +3196,21 @@ static int ocfs2_list_xattr_bucket(struct inode *inode,
2441 int i, block_off, new_offset; 3196 int i, block_off, new_offset;
2442 const char *prefix, *name; 3197 const char *prefix, *name;
2443 3198
2444 for (i = 0 ; i < le16_to_cpu(bucket->xh->xh_count); i++) { 3199 for (i = 0 ; i < le16_to_cpu(bucket_xh(bucket)->xh_count); i++) {
2445 struct ocfs2_xattr_entry *entry = &bucket->xh->xh_entries[i]; 3200 struct ocfs2_xattr_entry *entry = &bucket_xh(bucket)->xh_entries[i];
2446 type = ocfs2_xattr_get_type(entry); 3201 type = ocfs2_xattr_get_type(entry);
2447 prefix = ocfs2_xattr_prefix(type); 3202 prefix = ocfs2_xattr_prefix(type);
2448 3203
2449 if (prefix) { 3204 if (prefix) {
2450 ret = ocfs2_xattr_bucket_get_name_value(inode, 3205 ret = ocfs2_xattr_bucket_get_name_value(inode,
2451 bucket->xh, 3206 bucket_xh(bucket),
2452 i, 3207 i,
2453 &block_off, 3208 &block_off,
2454 &new_offset); 3209 &new_offset);
2455 if (ret) 3210 if (ret)
2456 break; 3211 break;
2457 3212
2458 name = (const char *)bucket->bhs[block_off]->b_data + 3213 name = (const char *)bucket_block(bucket, block_off) +
2459 new_offset; 3214 new_offset;
2460 ret = ocfs2_xattr_list_entry(xl->buffer, 3215 ret = ocfs2_xattr_list_entry(xl->buffer,
2461 xl->buffer_size, 3216 xl->buffer_size,
@@ -2540,32 +3295,34 @@ static void swap_xe(void *a, void *b, int size)
2540/* 3295/*
2541 * When the ocfs2_xattr_block is filled up, new bucket will be created 3296 * When the ocfs2_xattr_block is filled up, new bucket will be created
2542 * and all the xattr entries will be moved to the new bucket. 3297 * and all the xattr entries will be moved to the new bucket.
3298 * The header goes at the start of the bucket, and the names+values are
3299 * filled from the end. This is why *target starts as the last buffer.
2543 * Note: we need to sort the entries since they are not saved in order 3300 * Note: we need to sort the entries since they are not saved in order
2544 * in the ocfs2_xattr_block. 3301 * in the ocfs2_xattr_block.
2545 */ 3302 */
2546static void ocfs2_cp_xattr_block_to_bucket(struct inode *inode, 3303static void ocfs2_cp_xattr_block_to_bucket(struct inode *inode,
2547 struct buffer_head *xb_bh, 3304 struct buffer_head *xb_bh,
2548 struct buffer_head *xh_bh, 3305 struct ocfs2_xattr_bucket *bucket)
2549 struct buffer_head *data_bh)
2550{ 3306{
2551 int i, blocksize = inode->i_sb->s_blocksize; 3307 int i, blocksize = inode->i_sb->s_blocksize;
3308 int blks = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
2552 u16 offset, size, off_change; 3309 u16 offset, size, off_change;
2553 struct ocfs2_xattr_entry *xe; 3310 struct ocfs2_xattr_entry *xe;
2554 struct ocfs2_xattr_block *xb = 3311 struct ocfs2_xattr_block *xb =
2555 (struct ocfs2_xattr_block *)xb_bh->b_data; 3312 (struct ocfs2_xattr_block *)xb_bh->b_data;
2556 struct ocfs2_xattr_header *xb_xh = &xb->xb_attrs.xb_header; 3313 struct ocfs2_xattr_header *xb_xh = &xb->xb_attrs.xb_header;
2557 struct ocfs2_xattr_header *xh = 3314 struct ocfs2_xattr_header *xh = bucket_xh(bucket);
2558 (struct ocfs2_xattr_header *)xh_bh->b_data;
2559 u16 count = le16_to_cpu(xb_xh->xh_count); 3315 u16 count = le16_to_cpu(xb_xh->xh_count);
2560 char *target = xh_bh->b_data, *src = xb_bh->b_data; 3316 char *src = xb_bh->b_data;
3317 char *target = bucket_block(bucket, blks - 1);
2561 3318
2562 mlog(0, "cp xattr from block %llu to bucket %llu\n", 3319 mlog(0, "cp xattr from block %llu to bucket %llu\n",
2563 (unsigned long long)xb_bh->b_blocknr, 3320 (unsigned long long)xb_bh->b_blocknr,
2564 (unsigned long long)xh_bh->b_blocknr); 3321 (unsigned long long)bucket_blkno(bucket));
3322
3323 for (i = 0; i < blks; i++)
3324 memset(bucket_block(bucket, i), 0, blocksize);
2565 3325
2566 memset(xh_bh->b_data, 0, blocksize);
2567 if (data_bh)
2568 memset(data_bh->b_data, 0, blocksize);
2569 /* 3326 /*
2570 * Since the xe_name_offset is based on ocfs2_xattr_header, 3327 * Since the xe_name_offset is based on ocfs2_xattr_header,
2571 * there is a offset change corresponding to the change of 3328 * there is a offset change corresponding to the change of
@@ -2577,8 +3334,6 @@ static void ocfs2_cp_xattr_block_to_bucket(struct inode *inode,
2577 size = blocksize - offset; 3334 size = blocksize - offset;
2578 3335
2579 /* copy all the names and values. */ 3336 /* copy all the names and values. */
2580 if (data_bh)
2581 target = data_bh->b_data;
2582 memcpy(target + offset, src + offset, size); 3337 memcpy(target + offset, src + offset, size);
2583 3338
2584 /* Init new header now. */ 3339 /* Init new header now. */
@@ -2588,7 +3343,7 @@ static void ocfs2_cp_xattr_block_to_bucket(struct inode *inode,
2588 xh->xh_free_start = cpu_to_le16(OCFS2_XATTR_BUCKET_SIZE - size); 3343 xh->xh_free_start = cpu_to_le16(OCFS2_XATTR_BUCKET_SIZE - size);
2589 3344
2590 /* copy all the entries. */ 3345 /* copy all the entries. */
2591 target = xh_bh->b_data; 3346 target = bucket_block(bucket, 0);
2592 offset = offsetof(struct ocfs2_xattr_header, xh_entries); 3347 offset = offsetof(struct ocfs2_xattr_header, xh_entries);
2593 size = count * sizeof(struct ocfs2_xattr_entry); 3348 size = count * sizeof(struct ocfs2_xattr_entry);
2594 memcpy(target + offset, (char *)xb_xh + offset, size); 3349 memcpy(target + offset, (char *)xb_xh + offset, size);
@@ -2614,73 +3369,47 @@ static void ocfs2_cp_xattr_block_to_bucket(struct inode *inode,
2614 * While if the entry is in index b-tree, "bucket" indicates the 3369 * While if the entry is in index b-tree, "bucket" indicates the
2615 * real place of the xattr. 3370 * real place of the xattr.
2616 */ 3371 */
2617static int ocfs2_xattr_update_xattr_search(struct inode *inode, 3372static void ocfs2_xattr_update_xattr_search(struct inode *inode,
2618 struct ocfs2_xattr_search *xs, 3373 struct ocfs2_xattr_search *xs,
2619 struct buffer_head *old_bh, 3374 struct buffer_head *old_bh)
2620 struct buffer_head *new_bh)
2621{ 3375{
2622 int ret = 0;
2623 char *buf = old_bh->b_data; 3376 char *buf = old_bh->b_data;
2624 struct ocfs2_xattr_block *old_xb = (struct ocfs2_xattr_block *)buf; 3377 struct ocfs2_xattr_block *old_xb = (struct ocfs2_xattr_block *)buf;
2625 struct ocfs2_xattr_header *old_xh = &old_xb->xb_attrs.xb_header; 3378 struct ocfs2_xattr_header *old_xh = &old_xb->xb_attrs.xb_header;
2626 int i, blocksize = inode->i_sb->s_blocksize; 3379 int i;
2627 u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
2628
2629 xs->bucket.bhs[0] = new_bh;
2630 get_bh(new_bh);
2631 xs->bucket.xh = (struct ocfs2_xattr_header *)xs->bucket.bhs[0]->b_data;
2632 xs->header = xs->bucket.xh;
2633 3380
2634 xs->base = new_bh->b_data; 3381 xs->header = bucket_xh(xs->bucket);
3382 xs->base = bucket_block(xs->bucket, 0);
2635 xs->end = xs->base + inode->i_sb->s_blocksize; 3383 xs->end = xs->base + inode->i_sb->s_blocksize;
2636 3384
2637 if (!xs->not_found) { 3385 if (xs->not_found)
2638 if (OCFS2_XATTR_BUCKET_SIZE != blocksize) { 3386 return;
2639 ret = ocfs2_read_blocks(inode,
2640 xs->bucket.bhs[0]->b_blocknr + 1,
2641 blk_per_bucket - 1, &xs->bucket.bhs[1],
2642 0);
2643 if (ret) {
2644 mlog_errno(ret);
2645 return ret;
2646 }
2647
2648 }
2649 i = xs->here - old_xh->xh_entries;
2650 xs->here = &xs->header->xh_entries[i];
2651 }
2652 3387
2653 return ret; 3388 i = xs->here - old_xh->xh_entries;
3389 xs->here = &xs->header->xh_entries[i];
2654} 3390}
2655 3391
2656static int ocfs2_xattr_create_index_block(struct inode *inode, 3392static int ocfs2_xattr_create_index_block(struct inode *inode,
2657 struct ocfs2_xattr_search *xs) 3393 struct ocfs2_xattr_search *xs,
3394 struct ocfs2_xattr_set_ctxt *ctxt)
2658{ 3395{
2659 int ret, credits = OCFS2_SUBALLOC_ALLOC; 3396 int ret;
2660 u32 bit_off, len; 3397 u32 bit_off, len;
2661 u64 blkno; 3398 u64 blkno;
2662 handle_t *handle; 3399 handle_t *handle = ctxt->handle;
2663 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); 3400 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
2664 struct ocfs2_inode_info *oi = OCFS2_I(inode); 3401 struct ocfs2_inode_info *oi = OCFS2_I(inode);
2665 struct ocfs2_alloc_context *data_ac;
2666 struct buffer_head *xh_bh = NULL, *data_bh = NULL;
2667 struct buffer_head *xb_bh = xs->xattr_bh; 3402 struct buffer_head *xb_bh = xs->xattr_bh;
2668 struct ocfs2_xattr_block *xb = 3403 struct ocfs2_xattr_block *xb =
2669 (struct ocfs2_xattr_block *)xb_bh->b_data; 3404 (struct ocfs2_xattr_block *)xb_bh->b_data;
2670 struct ocfs2_xattr_tree_root *xr; 3405 struct ocfs2_xattr_tree_root *xr;
2671 u16 xb_flags = le16_to_cpu(xb->xb_flags); 3406 u16 xb_flags = le16_to_cpu(xb->xb_flags);
2672 u16 bpb = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
2673 3407
2674 mlog(0, "create xattr index block for %llu\n", 3408 mlog(0, "create xattr index block for %llu\n",
2675 (unsigned long long)xb_bh->b_blocknr); 3409 (unsigned long long)xb_bh->b_blocknr);
2676 3410
2677 BUG_ON(xb_flags & OCFS2_XATTR_INDEXED); 3411 BUG_ON(xb_flags & OCFS2_XATTR_INDEXED);
2678 3412 BUG_ON(!xs->bucket);
2679 ret = ocfs2_reserve_clusters(osb, 1, &data_ac);
2680 if (ret) {
2681 mlog_errno(ret);
2682 goto out;
2683 }
2684 3413
2685 /* 3414 /*
2686 * XXX: 3415 * XXX:
@@ -2689,29 +3418,18 @@ static int ocfs2_xattr_create_index_block(struct inode *inode,
2689 */ 3418 */
2690 down_write(&oi->ip_alloc_sem); 3419 down_write(&oi->ip_alloc_sem);
2691 3420
2692 /* 3421 ret = ocfs2_journal_access_xb(handle, inode, xb_bh,
2693 * 3 more credits, one for xattr block update, one for the 1st block 3422 OCFS2_JOURNAL_ACCESS_WRITE);
2694 * of the new xattr bucket and one for the value/data.
2695 */
2696 credits += 3;
2697 handle = ocfs2_start_trans(osb, credits);
2698 if (IS_ERR(handle)) {
2699 ret = PTR_ERR(handle);
2700 mlog_errno(ret);
2701 goto out_sem;
2702 }
2703
2704 ret = ocfs2_journal_access(handle, inode, xb_bh,
2705 OCFS2_JOURNAL_ACCESS_WRITE);
2706 if (ret) { 3423 if (ret) {
2707 mlog_errno(ret); 3424 mlog_errno(ret);
2708 goto out_commit; 3425 goto out;
2709 } 3426 }
2710 3427
2711 ret = ocfs2_claim_clusters(osb, handle, data_ac, 1, &bit_off, &len); 3428 ret = __ocfs2_claim_clusters(osb, handle, ctxt->data_ac,
3429 1, 1, &bit_off, &len);
2712 if (ret) { 3430 if (ret) {
2713 mlog_errno(ret); 3431 mlog_errno(ret);
2714 goto out_commit; 3432 goto out;
2715 } 3433 }
2716 3434
2717 /* 3435 /*
@@ -2724,51 +3442,23 @@ static int ocfs2_xattr_create_index_block(struct inode *inode,
2724 mlog(0, "allocate 1 cluster from %llu to xattr block\n", 3442 mlog(0, "allocate 1 cluster from %llu to xattr block\n",
2725 (unsigned long long)blkno); 3443 (unsigned long long)blkno);
2726 3444
2727 xh_bh = sb_getblk(inode->i_sb, blkno); 3445 ret = ocfs2_init_xattr_bucket(xs->bucket, blkno);
2728 if (!xh_bh) { 3446 if (ret) {
2729 ret = -EIO;
2730 mlog_errno(ret); 3447 mlog_errno(ret);
2731 goto out_commit; 3448 goto out;
2732 } 3449 }
2733 3450
2734 ocfs2_set_new_buffer_uptodate(inode, xh_bh); 3451 ret = ocfs2_xattr_bucket_journal_access(handle, xs->bucket,
2735 3452 OCFS2_JOURNAL_ACCESS_CREATE);
2736 ret = ocfs2_journal_access(handle, inode, xh_bh,
2737 OCFS2_JOURNAL_ACCESS_CREATE);
2738 if (ret) { 3453 if (ret) {
2739 mlog_errno(ret); 3454 mlog_errno(ret);
2740 goto out_commit; 3455 goto out;
2741 }
2742
2743 if (bpb > 1) {
2744 data_bh = sb_getblk(inode->i_sb, blkno + bpb - 1);
2745 if (!data_bh) {
2746 ret = -EIO;
2747 mlog_errno(ret);
2748 goto out_commit;
2749 }
2750
2751 ocfs2_set_new_buffer_uptodate(inode, data_bh);
2752
2753 ret = ocfs2_journal_access(handle, inode, data_bh,
2754 OCFS2_JOURNAL_ACCESS_CREATE);
2755 if (ret) {
2756 mlog_errno(ret);
2757 goto out_commit;
2758 }
2759 } 3456 }
2760 3457
2761 ocfs2_cp_xattr_block_to_bucket(inode, xb_bh, xh_bh, data_bh); 3458 ocfs2_cp_xattr_block_to_bucket(inode, xb_bh, xs->bucket);
3459 ocfs2_xattr_bucket_journal_dirty(handle, xs->bucket);
2762 3460
2763 ocfs2_journal_dirty(handle, xh_bh); 3461 ocfs2_xattr_update_xattr_search(inode, xs, xb_bh);
2764 if (data_bh)
2765 ocfs2_journal_dirty(handle, data_bh);
2766
2767 ret = ocfs2_xattr_update_xattr_search(inode, xs, xb_bh, xh_bh);
2768 if (ret) {
2769 mlog_errno(ret);
2770 goto out_commit;
2771 }
2772 3462
2773 /* Change from ocfs2_xattr_header to ocfs2_xattr_tree_root */ 3463 /* Change from ocfs2_xattr_header to ocfs2_xattr_tree_root */
2774 memset(&xb->xb_attrs, 0, inode->i_sb->s_blocksize - 3464 memset(&xb->xb_attrs, 0, inode->i_sb->s_blocksize -
@@ -2787,24 +3477,10 @@ static int ocfs2_xattr_create_index_block(struct inode *inode,
2787 3477
2788 xb->xb_flags = cpu_to_le16(xb_flags | OCFS2_XATTR_INDEXED); 3478 xb->xb_flags = cpu_to_le16(xb_flags | OCFS2_XATTR_INDEXED);
2789 3479
2790 ret = ocfs2_journal_dirty(handle, xb_bh); 3480 ocfs2_journal_dirty(handle, xb_bh);
2791 if (ret) {
2792 mlog_errno(ret);
2793 goto out_commit;
2794 }
2795
2796out_commit:
2797 ocfs2_commit_trans(osb, handle);
2798
2799out_sem:
2800 up_write(&oi->ip_alloc_sem);
2801 3481
2802out: 3482out:
2803 if (data_ac) 3483 up_write(&oi->ip_alloc_sem);
2804 ocfs2_free_alloc_context(data_ac);
2805
2806 brelse(xh_bh);
2807 brelse(data_bh);
2808 3484
2809 return ret; 3485 return ret;
2810} 3486}
@@ -2829,29 +3505,18 @@ static int cmp_xe_offset(const void *a, const void *b)
2829 * so that we can spare some space for insertion. 3505 * so that we can spare some space for insertion.
2830 */ 3506 */
2831static int ocfs2_defrag_xattr_bucket(struct inode *inode, 3507static int ocfs2_defrag_xattr_bucket(struct inode *inode,
3508 handle_t *handle,
2832 struct ocfs2_xattr_bucket *bucket) 3509 struct ocfs2_xattr_bucket *bucket)
2833{ 3510{
2834 int ret, i; 3511 int ret, i;
2835 size_t end, offset, len, value_len; 3512 size_t end, offset, len, value_len;
2836 struct ocfs2_xattr_header *xh; 3513 struct ocfs2_xattr_header *xh;
2837 char *entries, *buf, *bucket_buf = NULL; 3514 char *entries, *buf, *bucket_buf = NULL;
2838 u64 blkno = bucket->bhs[0]->b_blocknr; 3515 u64 blkno = bucket_blkno(bucket);
2839 u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
2840 u16 xh_free_start; 3516 u16 xh_free_start;
2841 size_t blocksize = inode->i_sb->s_blocksize; 3517 size_t blocksize = inode->i_sb->s_blocksize;
2842 handle_t *handle;
2843 struct buffer_head **bhs;
2844 struct ocfs2_xattr_entry *xe; 3518 struct ocfs2_xattr_entry *xe;
2845 3519
2846 bhs = kzalloc(sizeof(struct buffer_head *) * blk_per_bucket,
2847 GFP_NOFS);
2848 if (!bhs)
2849 return -ENOMEM;
2850
2851 ret = ocfs2_read_blocks(inode, blkno, blk_per_bucket, bhs, 0);
2852 if (ret)
2853 goto out;
2854
2855 /* 3520 /*
2856 * In order to make the operation more efficient and generic, 3521 * In order to make the operation more efficient and generic,
2857 * we copy all the blocks into a contiguous memory and do the 3522 * we copy all the blocks into a contiguous memory and do the
@@ -2865,26 +3530,16 @@ static int ocfs2_defrag_xattr_bucket(struct inode *inode,
2865 } 3530 }
2866 3531
2867 buf = bucket_buf; 3532 buf = bucket_buf;
2868 for (i = 0; i < blk_per_bucket; i++, buf += blocksize) 3533 for (i = 0; i < bucket->bu_blocks; i++, buf += blocksize)
2869 memcpy(buf, bhs[i]->b_data, blocksize); 3534 memcpy(buf, bucket_block(bucket, i), blocksize);
2870 3535
2871 handle = ocfs2_start_trans((OCFS2_SB(inode->i_sb)), blk_per_bucket); 3536 ret = ocfs2_xattr_bucket_journal_access(handle, bucket,
2872 if (IS_ERR(handle)) { 3537 OCFS2_JOURNAL_ACCESS_WRITE);
2873 ret = PTR_ERR(handle); 3538 if (ret < 0) {
2874 handle = NULL;
2875 mlog_errno(ret); 3539 mlog_errno(ret);
2876 goto out; 3540 goto out;
2877 } 3541 }
2878 3542
2879 for (i = 0; i < blk_per_bucket; i++) {
2880 ret = ocfs2_journal_access(handle, inode, bhs[i],
2881 OCFS2_JOURNAL_ACCESS_WRITE);
2882 if (ret < 0) {
2883 mlog_errno(ret);
2884 goto commit;
2885 }
2886 }
2887
2888 xh = (struct ocfs2_xattr_header *)bucket_buf; 3543 xh = (struct ocfs2_xattr_header *)bucket_buf;
2889 entries = (char *)xh->xh_entries; 3544 entries = (char *)xh->xh_entries;
2890 xh_free_start = le16_to_cpu(xh->xh_free_start); 3545 xh_free_start = le16_to_cpu(xh->xh_free_start);
@@ -2940,7 +3595,7 @@ static int ocfs2_defrag_xattr_bucket(struct inode *inode,
2940 "bucket %llu\n", (unsigned long long)blkno); 3595 "bucket %llu\n", (unsigned long long)blkno);
2941 3596
2942 if (xh_free_start == end) 3597 if (xh_free_start == end)
2943 goto commit; 3598 goto out;
2944 3599
2945 memset(bucket_buf + xh_free_start, 0, end - xh_free_start); 3600 memset(bucket_buf + xh_free_start, 0, end - xh_free_start);
2946 xh->xh_free_start = cpu_to_le16(end); 3601 xh->xh_free_start = cpu_to_le16(end);
@@ -2951,169 +3606,94 @@ static int ocfs2_defrag_xattr_bucket(struct inode *inode,
2951 cmp_xe, swap_xe); 3606 cmp_xe, swap_xe);
2952 3607
2953 buf = bucket_buf; 3608 buf = bucket_buf;
2954 for (i = 0; i < blk_per_bucket; i++, buf += blocksize) { 3609 for (i = 0; i < bucket->bu_blocks; i++, buf += blocksize)
2955 memcpy(bhs[i]->b_data, buf, blocksize); 3610 memcpy(bucket_block(bucket, i), buf, blocksize);
2956 ocfs2_journal_dirty(handle, bhs[i]); 3611 ocfs2_xattr_bucket_journal_dirty(handle, bucket);
2957 }
2958 3612
2959commit:
2960 ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
2961out: 3613out:
2962
2963 if (bhs) {
2964 for (i = 0; i < blk_per_bucket; i++)
2965 brelse(bhs[i]);
2966 }
2967 kfree(bhs);
2968
2969 kfree(bucket_buf); 3614 kfree(bucket_buf);
2970 return ret; 3615 return ret;
2971} 3616}
2972 3617
2973/* 3618/*
2974 * Move half nums of the xattr bucket in the previous cluster to this new 3619 * prev_blkno points to the start of an existing extent. new_blkno
2975 * cluster. We only touch the last cluster of the previous extend record. 3620 * points to a newly allocated extent. Because we know each of our
3621 * clusters contains more than bucket, we can easily split one cluster
3622 * at a bucket boundary. So we take the last cluster of the existing
3623 * extent and split it down the middle. We move the last half of the
3624 * buckets in the last cluster of the existing extent over to the new
3625 * extent.
3626 *
3627 * first_bh is the buffer at prev_blkno so we can update the existing
3628 * extent's bucket count. header_bh is the bucket were we were hoping
3629 * to insert our xattr. If the bucket move places the target in the new
3630 * extent, we'll update first_bh and header_bh after modifying the old
3631 * extent.
2976 * 3632 *
2977 * first_bh is the first buffer_head of a series of bucket in the same 3633 * first_hash will be set as the 1st xe's name_hash in the new extent.
2978 * extent rec and header_bh is the header of one bucket in this cluster.
2979 * They will be updated if we move the data header_bh contains to the new
2980 * cluster. first_hash will be set as the 1st xe's name_hash of the new cluster.
2981 */ 3634 */
2982static int ocfs2_mv_xattr_bucket_cross_cluster(struct inode *inode, 3635static int ocfs2_mv_xattr_bucket_cross_cluster(struct inode *inode,
2983 handle_t *handle, 3636 handle_t *handle,
2984 struct buffer_head **first_bh, 3637 struct ocfs2_xattr_bucket *first,
2985 struct buffer_head **header_bh, 3638 struct ocfs2_xattr_bucket *target,
2986 u64 new_blkno, 3639 u64 new_blkno,
2987 u64 prev_blkno,
2988 u32 num_clusters, 3640 u32 num_clusters,
2989 u32 *first_hash) 3641 u32 *first_hash)
2990{ 3642{
2991 int i, ret, credits; 3643 int ret;
2992 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); 3644 struct super_block *sb = inode->i_sb;
2993 int bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1); 3645 int blks_per_bucket = ocfs2_blocks_per_xattr_bucket(sb);
2994 int num_buckets = ocfs2_xattr_buckets_per_cluster(osb); 3646 int num_buckets = ocfs2_xattr_buckets_per_cluster(OCFS2_SB(sb));
2995 int blocksize = inode->i_sb->s_blocksize; 3647 int to_move = num_buckets / 2;
2996 struct buffer_head *old_bh, *new_bh, *prev_bh, *new_first_bh = NULL; 3648 u64 src_blkno;
2997 struct ocfs2_xattr_header *new_xh; 3649 u64 last_cluster_blkno = bucket_blkno(first) +
2998 struct ocfs2_xattr_header *xh = 3650 ((num_clusters - 1) * ocfs2_clusters_to_blocks(sb, 1));
2999 (struct ocfs2_xattr_header *)((*first_bh)->b_data);
3000
3001 BUG_ON(le16_to_cpu(xh->xh_num_buckets) < num_buckets);
3002 BUG_ON(OCFS2_XATTR_BUCKET_SIZE == osb->s_clustersize);
3003
3004 prev_bh = *first_bh;
3005 get_bh(prev_bh);
3006 xh = (struct ocfs2_xattr_header *)prev_bh->b_data;
3007 3651
3008 prev_blkno += (num_clusters - 1) * bpc + bpc / 2; 3652 BUG_ON(le16_to_cpu(bucket_xh(first)->xh_num_buckets) < num_buckets);
3653 BUG_ON(OCFS2_XATTR_BUCKET_SIZE == OCFS2_SB(sb)->s_clustersize);
3009 3654
3010 mlog(0, "move half of xattrs in cluster %llu to %llu\n", 3655 mlog(0, "move half of xattrs in cluster %llu to %llu\n",
3011 (unsigned long long)prev_blkno, (unsigned long long)new_blkno); 3656 (unsigned long long)last_cluster_blkno, (unsigned long long)new_blkno);
3012 3657
3013 /* 3658 ret = ocfs2_mv_xattr_buckets(inode, handle, bucket_blkno(first),
3014 * We need to update the 1st half of the new cluster and 3659 last_cluster_blkno, new_blkno,
3015 * 1 more for the update of the 1st bucket of the previous 3660 to_move, first_hash);
3016 * extent record.
3017 */
3018 credits = bpc / 2 + 1;
3019 ret = ocfs2_extend_trans(handle, credits);
3020 if (ret) { 3661 if (ret) {
3021 mlog_errno(ret); 3662 mlog_errno(ret);
3022 goto out; 3663 goto out;
3023 } 3664 }
3024 3665
3025 ret = ocfs2_journal_access(handle, inode, prev_bh, 3666 /* This is the first bucket that got moved */
3026 OCFS2_JOURNAL_ACCESS_WRITE); 3667 src_blkno = last_cluster_blkno + (to_move * blks_per_bucket);
3027 if (ret) {
3028 mlog_errno(ret);
3029 goto out;
3030 }
3031 3668
3032 for (i = 0; i < bpc / 2; i++, prev_blkno++, new_blkno++) { 3669 /*
3033 old_bh = new_bh = NULL; 3670 * If the target bucket was part of the moved buckets, we need to
3034 new_bh = sb_getblk(inode->i_sb, new_blkno); 3671 * update first and target.
3035 if (!new_bh) { 3672 */
3036 ret = -EIO; 3673 if (bucket_blkno(target) >= src_blkno) {
3037 mlog_errno(ret); 3674 /* Find the block for the new target bucket */
3038 goto out; 3675 src_blkno = new_blkno +
3039 } 3676 (bucket_blkno(target) - src_blkno);
3040 3677
3041 ocfs2_set_new_buffer_uptodate(inode, new_bh); 3678 ocfs2_xattr_bucket_relse(first);
3679 ocfs2_xattr_bucket_relse(target);
3042 3680
3043 ret = ocfs2_journal_access(handle, inode, new_bh, 3681 /*
3044 OCFS2_JOURNAL_ACCESS_CREATE); 3682 * These shouldn't fail - the buffers are in the
3045 if (ret < 0) { 3683 * journal from ocfs2_cp_xattr_bucket().
3684 */
3685 ret = ocfs2_read_xattr_bucket(first, new_blkno);
3686 if (ret) {
3046 mlog_errno(ret); 3687 mlog_errno(ret);
3047 brelse(new_bh);
3048 goto out; 3688 goto out;
3049 } 3689 }
3050 3690 ret = ocfs2_read_xattr_bucket(target, src_blkno);
3051 ret = ocfs2_read_block(inode, prev_blkno, &old_bh); 3691 if (ret)
3052 if (ret < 0) {
3053 mlog_errno(ret); 3692 mlog_errno(ret);
3054 brelse(new_bh);
3055 goto out;
3056 }
3057 3693
3058 memcpy(new_bh->b_data, old_bh->b_data, blocksize);
3059
3060 if (i == 0) {
3061 new_xh = (struct ocfs2_xattr_header *)new_bh->b_data;
3062 new_xh->xh_num_buckets = cpu_to_le16(num_buckets / 2);
3063
3064 if (first_hash)
3065 *first_hash = le32_to_cpu(
3066 new_xh->xh_entries[0].xe_name_hash);
3067 new_first_bh = new_bh;
3068 get_bh(new_first_bh);
3069 }
3070
3071 ocfs2_journal_dirty(handle, new_bh);
3072
3073 if (*header_bh == old_bh) {
3074 brelse(*header_bh);
3075 *header_bh = new_bh;
3076 get_bh(*header_bh);
3077
3078 brelse(*first_bh);
3079 *first_bh = new_first_bh;
3080 get_bh(*first_bh);
3081 }
3082 brelse(new_bh);
3083 brelse(old_bh);
3084 } 3694 }
3085 3695
3086 le16_add_cpu(&xh->xh_num_buckets, -(num_buckets / 2));
3087
3088 ocfs2_journal_dirty(handle, prev_bh);
3089out: 3696out:
3090 brelse(prev_bh);
3091 brelse(new_first_bh);
3092 return ret;
3093}
3094
3095static int ocfs2_read_xattr_bucket(struct inode *inode,
3096 u64 blkno,
3097 struct buffer_head **bhs,
3098 int new)
3099{
3100 int ret = 0;
3101 u16 i, blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
3102
3103 if (!new)
3104 return ocfs2_read_blocks(inode, blkno,
3105 blk_per_bucket, bhs, 0);
3106
3107 for (i = 0; i < blk_per_bucket; i++) {
3108 bhs[i] = sb_getblk(inode->i_sb, blkno + i);
3109 if (bhs[i] == NULL) {
3110 ret = -EIO;
3111 mlog_errno(ret);
3112 break;
3113 }
3114 ocfs2_set_new_buffer_uptodate(inode, bhs[i]);
3115 }
3116
3117 return ret; 3697 return ret;
3118} 3698}
3119 3699
@@ -3178,8 +3758,7 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
3178{ 3758{
3179 int ret, i; 3759 int ret, i;
3180 int count, start, len, name_value_len = 0, xe_len, name_offset = 0; 3760 int count, start, len, name_value_len = 0, xe_len, name_offset = 0;
3181 u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb); 3761 struct ocfs2_xattr_bucket *s_bucket = NULL, *t_bucket = NULL;
3182 struct buffer_head **s_bhs, **t_bhs = NULL;
3183 struct ocfs2_xattr_header *xh; 3762 struct ocfs2_xattr_header *xh;
3184 struct ocfs2_xattr_entry *xe; 3763 struct ocfs2_xattr_entry *xe;
3185 int blocksize = inode->i_sb->s_blocksize; 3764 int blocksize = inode->i_sb->s_blocksize;
@@ -3187,47 +3766,52 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
3187 mlog(0, "move some of xattrs from bucket %llu to %llu\n", 3766 mlog(0, "move some of xattrs from bucket %llu to %llu\n",
3188 (unsigned long long)blk, (unsigned long long)new_blk); 3767 (unsigned long long)blk, (unsigned long long)new_blk);
3189 3768
3190 s_bhs = kcalloc(blk_per_bucket, sizeof(struct buffer_head *), GFP_NOFS); 3769 s_bucket = ocfs2_xattr_bucket_new(inode);
3191 if (!s_bhs) 3770 t_bucket = ocfs2_xattr_bucket_new(inode);
3192 return -ENOMEM; 3771 if (!s_bucket || !t_bucket) {
3193 3772 ret = -ENOMEM;
3194 ret = ocfs2_read_xattr_bucket(inode, blk, s_bhs, 0);
3195 if (ret) {
3196 mlog_errno(ret); 3773 mlog_errno(ret);
3197 goto out; 3774 goto out;
3198 } 3775 }
3199 3776
3200 ret = ocfs2_journal_access(handle, inode, s_bhs[0], 3777 ret = ocfs2_read_xattr_bucket(s_bucket, blk);
3201 OCFS2_JOURNAL_ACCESS_WRITE);
3202 if (ret) { 3778 if (ret) {
3203 mlog_errno(ret); 3779 mlog_errno(ret);
3204 goto out; 3780 goto out;
3205 } 3781 }
3206 3782
3207 t_bhs = kcalloc(blk_per_bucket, sizeof(struct buffer_head *), GFP_NOFS); 3783 ret = ocfs2_xattr_bucket_journal_access(handle, s_bucket,
3208 if (!t_bhs) { 3784 OCFS2_JOURNAL_ACCESS_WRITE);
3209 ret = -ENOMEM; 3785 if (ret) {
3786 mlog_errno(ret);
3210 goto out; 3787 goto out;
3211 } 3788 }
3212 3789
3213 ret = ocfs2_read_xattr_bucket(inode, new_blk, t_bhs, new_bucket_head); 3790 /*
3791 * Even if !new_bucket_head, we're overwriting t_bucket. Thus,
3792 * there's no need to read it.
3793 */
3794 ret = ocfs2_init_xattr_bucket(t_bucket, new_blk);
3214 if (ret) { 3795 if (ret) {
3215 mlog_errno(ret); 3796 mlog_errno(ret);
3216 goto out; 3797 goto out;
3217 } 3798 }
3218 3799
3219 for (i = 0; i < blk_per_bucket; i++) { 3800 /*
3220 ret = ocfs2_journal_access(handle, inode, t_bhs[i], 3801 * Hey, if we're overwriting t_bucket, what difference does
3221 new_bucket_head ? 3802 * ACCESS_CREATE vs ACCESS_WRITE make? See the comment in the
3222 OCFS2_JOURNAL_ACCESS_CREATE : 3803 * same part of ocfs2_cp_xattr_bucket().
3223 OCFS2_JOURNAL_ACCESS_WRITE); 3804 */
3224 if (ret) { 3805 ret = ocfs2_xattr_bucket_journal_access(handle, t_bucket,
3225 mlog_errno(ret); 3806 new_bucket_head ?
3226 goto out; 3807 OCFS2_JOURNAL_ACCESS_CREATE :
3227 } 3808 OCFS2_JOURNAL_ACCESS_WRITE);
3809 if (ret) {
3810 mlog_errno(ret);
3811 goto out;
3228 } 3812 }
3229 3813
3230 xh = (struct ocfs2_xattr_header *)s_bhs[0]->b_data; 3814 xh = bucket_xh(s_bucket);
3231 count = le16_to_cpu(xh->xh_count); 3815 count = le16_to_cpu(xh->xh_count);
3232 start = ocfs2_xattr_find_divide_pos(xh); 3816 start = ocfs2_xattr_find_divide_pos(xh);
3233 3817
@@ -3239,10 +3823,10 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
3239 * The hash value is set as one larger than 3823 * The hash value is set as one larger than
3240 * that of the last entry in the previous bucket. 3824 * that of the last entry in the previous bucket.
3241 */ 3825 */
3242 for (i = 0; i < blk_per_bucket; i++) 3826 for (i = 0; i < t_bucket->bu_blocks; i++)
3243 memset(t_bhs[i]->b_data, 0, blocksize); 3827 memset(bucket_block(t_bucket, i), 0, blocksize);
3244 3828
3245 xh = (struct ocfs2_xattr_header *)t_bhs[0]->b_data; 3829 xh = bucket_xh(t_bucket);
3246 xh->xh_free_start = cpu_to_le16(blocksize); 3830 xh->xh_free_start = cpu_to_le16(blocksize);
3247 xh->xh_entries[0].xe_name_hash = xe->xe_name_hash; 3831 xh->xh_entries[0].xe_name_hash = xe->xe_name_hash;
3248 le32_add_cpu(&xh->xh_entries[0].xe_name_hash, 1); 3832 le32_add_cpu(&xh->xh_entries[0].xe_name_hash, 1);
@@ -3251,11 +3835,10 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
3251 } 3835 }
3252 3836
3253 /* copy the whole bucket to the new first. */ 3837 /* copy the whole bucket to the new first. */
3254 for (i = 0; i < blk_per_bucket; i++) 3838 ocfs2_xattr_bucket_copy_data(t_bucket, s_bucket);
3255 memcpy(t_bhs[i]->b_data, s_bhs[i]->b_data, blocksize);
3256 3839
3257 /* update the new bucket. */ 3840 /* update the new bucket. */
3258 xh = (struct ocfs2_xattr_header *)t_bhs[0]->b_data; 3841 xh = bucket_xh(t_bucket);
3259 3842
3260 /* 3843 /*
3261 * Calculate the total name/value len and xh_free_start for 3844 * Calculate the total name/value len and xh_free_start for
@@ -3319,11 +3902,7 @@ set_num_buckets:
3319 else 3902 else
3320 xh->xh_num_buckets = 0; 3903 xh->xh_num_buckets = 0;
3321 3904
3322 for (i = 0; i < blk_per_bucket; i++) { 3905 ocfs2_xattr_bucket_journal_dirty(handle, t_bucket);
3323 ocfs2_journal_dirty(handle, t_bhs[i]);
3324 if (ret)
3325 mlog_errno(ret);
3326 }
3327 3906
3328 /* store the first_hash of the new bucket. */ 3907 /* store the first_hash of the new bucket. */
3329 if (first_hash) 3908 if (first_hash)
@@ -3337,29 +3916,18 @@ set_num_buckets:
3337 if (start == count) 3916 if (start == count)
3338 goto out; 3917 goto out;
3339 3918
3340 xh = (struct ocfs2_xattr_header *)s_bhs[0]->b_data; 3919 xh = bucket_xh(s_bucket);
3341 memset(&xh->xh_entries[start], 0, 3920 memset(&xh->xh_entries[start], 0,
3342 sizeof(struct ocfs2_xattr_entry) * (count - start)); 3921 sizeof(struct ocfs2_xattr_entry) * (count - start));
3343 xh->xh_count = cpu_to_le16(start); 3922 xh->xh_count = cpu_to_le16(start);
3344 xh->xh_free_start = cpu_to_le16(name_offset); 3923 xh->xh_free_start = cpu_to_le16(name_offset);
3345 xh->xh_name_value_len = cpu_to_le16(name_value_len); 3924 xh->xh_name_value_len = cpu_to_le16(name_value_len);
3346 3925
3347 ocfs2_journal_dirty(handle, s_bhs[0]); 3926 ocfs2_xattr_bucket_journal_dirty(handle, s_bucket);
3348 if (ret)
3349 mlog_errno(ret);
3350 3927
3351out: 3928out:
3352 if (s_bhs) { 3929 ocfs2_xattr_bucket_free(s_bucket);
3353 for (i = 0; i < blk_per_bucket; i++) 3930 ocfs2_xattr_bucket_free(t_bucket);
3354 brelse(s_bhs[i]);
3355 }
3356 kfree(s_bhs);
3357
3358 if (t_bhs) {
3359 for (i = 0; i < blk_per_bucket; i++)
3360 brelse(t_bhs[i]);
3361 }
3362 kfree(t_bhs);
3363 3931
3364 return ret; 3932 return ret;
3365} 3933}
@@ -3376,10 +3944,8 @@ static int ocfs2_cp_xattr_bucket(struct inode *inode,
3376 u64 t_blkno, 3944 u64 t_blkno,
3377 int t_is_new) 3945 int t_is_new)
3378{ 3946{
3379 int ret, i; 3947 int ret;
3380 int blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb); 3948 struct ocfs2_xattr_bucket *s_bucket = NULL, *t_bucket = NULL;
3381 int blocksize = inode->i_sb->s_blocksize;
3382 struct buffer_head **s_bhs, **t_bhs = NULL;
3383 3949
3384 BUG_ON(s_blkno == t_blkno); 3950 BUG_ON(s_blkno == t_blkno);
3385 3951
@@ -3387,92 +3953,115 @@ static int ocfs2_cp_xattr_bucket(struct inode *inode,
3387 (unsigned long long)s_blkno, (unsigned long long)t_blkno, 3953 (unsigned long long)s_blkno, (unsigned long long)t_blkno,
3388 t_is_new); 3954 t_is_new);
3389 3955
3390 s_bhs = kzalloc(sizeof(struct buffer_head *) * blk_per_bucket, 3956 s_bucket = ocfs2_xattr_bucket_new(inode);
3391 GFP_NOFS); 3957 t_bucket = ocfs2_xattr_bucket_new(inode);
3392 if (!s_bhs) 3958 if (!s_bucket || !t_bucket) {
3393 return -ENOMEM; 3959 ret = -ENOMEM;
3960 mlog_errno(ret);
3961 goto out;
3962 }
3394 3963
3395 ret = ocfs2_read_xattr_bucket(inode, s_blkno, s_bhs, 0); 3964 ret = ocfs2_read_xattr_bucket(s_bucket, s_blkno);
3396 if (ret) 3965 if (ret)
3397 goto out; 3966 goto out;
3398 3967
3399 t_bhs = kzalloc(sizeof(struct buffer_head *) * blk_per_bucket, 3968 /*
3400 GFP_NOFS); 3969 * Even if !t_is_new, we're overwriting t_bucket. Thus,
3401 if (!t_bhs) { 3970 * there's no need to read it.
3402 ret = -ENOMEM; 3971 */
3972 ret = ocfs2_init_xattr_bucket(t_bucket, t_blkno);
3973 if (ret)
3403 goto out; 3974 goto out;
3404 }
3405 3975
3406 ret = ocfs2_read_xattr_bucket(inode, t_blkno, t_bhs, t_is_new); 3976 /*
3977 * Hey, if we're overwriting t_bucket, what difference does
3978 * ACCESS_CREATE vs ACCESS_WRITE make? Well, if we allocated a new
3979 * cluster to fill, we came here from
3980 * ocfs2_mv_xattr_buckets(), and it is really new -
3981 * ACCESS_CREATE is required. But we also might have moved data
3982 * out of t_bucket before extending back into it.
3983 * ocfs2_add_new_xattr_bucket() can do this - its call to
3984 * ocfs2_add_new_xattr_cluster() may have created a new extent
3985 * and copied out the end of the old extent. Then it re-extends
3986 * the old extent back to create space for new xattrs. That's
3987 * how we get here, and the bucket isn't really new.
3988 */
3989 ret = ocfs2_xattr_bucket_journal_access(handle, t_bucket,
3990 t_is_new ?
3991 OCFS2_JOURNAL_ACCESS_CREATE :
3992 OCFS2_JOURNAL_ACCESS_WRITE);
3407 if (ret) 3993 if (ret)
3408 goto out; 3994 goto out;
3409 3995
3410 for (i = 0; i < blk_per_bucket; i++) { 3996 ocfs2_xattr_bucket_copy_data(t_bucket, s_bucket);
3411 ret = ocfs2_journal_access(handle, inode, t_bhs[i], 3997 ocfs2_xattr_bucket_journal_dirty(handle, t_bucket);
3412 t_is_new ?
3413 OCFS2_JOURNAL_ACCESS_CREATE :
3414 OCFS2_JOURNAL_ACCESS_WRITE);
3415 if (ret)
3416 goto out;
3417 }
3418
3419 for (i = 0; i < blk_per_bucket; i++) {
3420 memcpy(t_bhs[i]->b_data, s_bhs[i]->b_data, blocksize);
3421 ocfs2_journal_dirty(handle, t_bhs[i]);
3422 }
3423 3998
3424out: 3999out:
3425 if (s_bhs) { 4000 ocfs2_xattr_bucket_free(t_bucket);
3426 for (i = 0; i < blk_per_bucket; i++) 4001 ocfs2_xattr_bucket_free(s_bucket);
3427 brelse(s_bhs[i]);
3428 }
3429 kfree(s_bhs);
3430
3431 if (t_bhs) {
3432 for (i = 0; i < blk_per_bucket; i++)
3433 brelse(t_bhs[i]);
3434 }
3435 kfree(t_bhs);
3436 4002
3437 return ret; 4003 return ret;
3438} 4004}
3439 4005
3440/* 4006/*
3441 * Copy one xattr cluster from src_blk to to_blk. 4007 * src_blk points to the start of an existing extent. last_blk points to
3442 * The to_blk will become the first bucket header of the cluster, so its 4008 * last cluster in that extent. to_blk points to a newly allocated
3443 * xh_num_buckets will be initialized as the bucket num in the cluster. 4009 * extent. We copy the buckets from the cluster at last_blk to the new
4010 * extent. If start_bucket is non-zero, we skip that many buckets before
4011 * we start copying. The new extent's xh_num_buckets gets set to the
4012 * number of buckets we copied. The old extent's xh_num_buckets shrinks
4013 * by the same amount.
3444 */ 4014 */
3445static int ocfs2_cp_xattr_cluster(struct inode *inode, 4015static int ocfs2_mv_xattr_buckets(struct inode *inode, handle_t *handle,
3446 handle_t *handle, 4016 u64 src_blk, u64 last_blk, u64 to_blk,
3447 struct buffer_head *first_bh, 4017 unsigned int start_bucket,
3448 u64 src_blk,
3449 u64 to_blk,
3450 u32 *first_hash) 4018 u32 *first_hash)
3451{ 4019{
3452 int i, ret, credits; 4020 int i, ret, credits;
3453 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); 4021 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
3454 int bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1); 4022 int blks_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
3455 int num_buckets = ocfs2_xattr_buckets_per_cluster(osb); 4023 int num_buckets = ocfs2_xattr_buckets_per_cluster(osb);
3456 struct buffer_head *bh = NULL; 4024 struct ocfs2_xattr_bucket *old_first, *new_first;
3457 struct ocfs2_xattr_header *xh; 4025
3458 u64 to_blk_start = to_blk; 4026 mlog(0, "mv xattrs from cluster %llu to %llu\n",
4027 (unsigned long long)last_blk, (unsigned long long)to_blk);
4028
4029 BUG_ON(start_bucket >= num_buckets);
4030 if (start_bucket) {
4031 num_buckets -= start_bucket;
4032 last_blk += (start_bucket * blks_per_bucket);
4033 }
4034
4035 /* The first bucket of the original extent */
4036 old_first = ocfs2_xattr_bucket_new(inode);
4037 /* The first bucket of the new extent */
4038 new_first = ocfs2_xattr_bucket_new(inode);
4039 if (!old_first || !new_first) {
4040 ret = -ENOMEM;
4041 mlog_errno(ret);
4042 goto out;
4043 }
3459 4044
3460 mlog(0, "cp xattrs from cluster %llu to %llu\n", 4045 ret = ocfs2_read_xattr_bucket(old_first, src_blk);
3461 (unsigned long long)src_blk, (unsigned long long)to_blk); 4046 if (ret) {
4047 mlog_errno(ret);
4048 goto out;
4049 }
3462 4050
3463 /* 4051 /*
3464 * We need to update the new cluster and 1 more for the update of 4052 * We need to update the first bucket of the old extent and all
3465 * the 1st bucket of the previous extent rec. 4053 * the buckets going to the new extent.
3466 */ 4054 */
3467 credits = bpc + 1; 4055 credits = ((num_buckets + 1) * blks_per_bucket) +
4056 handle->h_buffer_credits;
3468 ret = ocfs2_extend_trans(handle, credits); 4057 ret = ocfs2_extend_trans(handle, credits);
3469 if (ret) { 4058 if (ret) {
3470 mlog_errno(ret); 4059 mlog_errno(ret);
3471 goto out; 4060 goto out;
3472 } 4061 }
3473 4062
3474 ret = ocfs2_journal_access(handle, inode, first_bh, 4063 ret = ocfs2_xattr_bucket_journal_access(handle, old_first,
3475 OCFS2_JOURNAL_ACCESS_WRITE); 4064 OCFS2_JOURNAL_ACCESS_WRITE);
3476 if (ret) { 4065 if (ret) {
3477 mlog_errno(ret); 4066 mlog_errno(ret);
3478 goto out; 4067 goto out;
@@ -3480,45 +4069,45 @@ static int ocfs2_cp_xattr_cluster(struct inode *inode,
3480 4069
3481 for (i = 0; i < num_buckets; i++) { 4070 for (i = 0; i < num_buckets; i++) {
3482 ret = ocfs2_cp_xattr_bucket(inode, handle, 4071 ret = ocfs2_cp_xattr_bucket(inode, handle,
3483 src_blk, to_blk, 1); 4072 last_blk + (i * blks_per_bucket),
4073 to_blk + (i * blks_per_bucket),
4074 1);
3484 if (ret) { 4075 if (ret) {
3485 mlog_errno(ret); 4076 mlog_errno(ret);
3486 goto out; 4077 goto out;
3487 } 4078 }
3488
3489 src_blk += ocfs2_blocks_per_xattr_bucket(inode->i_sb);
3490 to_blk += ocfs2_blocks_per_xattr_bucket(inode->i_sb);
3491 } 4079 }
3492 4080
3493 /* update the old bucket header. */ 4081 /*
3494 xh = (struct ocfs2_xattr_header *)first_bh->b_data; 4082 * Get the new bucket ready before we dirty anything
3495 le16_add_cpu(&xh->xh_num_buckets, -num_buckets); 4083 * (This actually shouldn't fail, because we already dirtied
3496 4084 * it once in ocfs2_cp_xattr_bucket()).
3497 ocfs2_journal_dirty(handle, first_bh); 4085 */
3498 4086 ret = ocfs2_read_xattr_bucket(new_first, to_blk);
3499 /* update the new bucket header. */ 4087 if (ret) {
3500 ret = ocfs2_read_block(inode, to_blk_start, &bh);
3501 if (ret < 0) {
3502 mlog_errno(ret); 4088 mlog_errno(ret);
3503 goto out; 4089 goto out;
3504 } 4090 }
3505 4091 ret = ocfs2_xattr_bucket_journal_access(handle, new_first,
3506 ret = ocfs2_journal_access(handle, inode, bh, 4092 OCFS2_JOURNAL_ACCESS_WRITE);
3507 OCFS2_JOURNAL_ACCESS_WRITE);
3508 if (ret) { 4093 if (ret) {
3509 mlog_errno(ret); 4094 mlog_errno(ret);
3510 goto out; 4095 goto out;
3511 } 4096 }
3512 4097
3513 xh = (struct ocfs2_xattr_header *)bh->b_data; 4098 /* Now update the headers */
3514 xh->xh_num_buckets = cpu_to_le16(num_buckets); 4099 le16_add_cpu(&bucket_xh(old_first)->xh_num_buckets, -num_buckets);
4100 ocfs2_xattr_bucket_journal_dirty(handle, old_first);
3515 4101
3516 ocfs2_journal_dirty(handle, bh); 4102 bucket_xh(new_first)->xh_num_buckets = cpu_to_le16(num_buckets);
4103 ocfs2_xattr_bucket_journal_dirty(handle, new_first);
3517 4104
3518 if (first_hash) 4105 if (first_hash)
3519 *first_hash = le32_to_cpu(xh->xh_entries[0].xe_name_hash); 4106 *first_hash = le32_to_cpu(bucket_xh(new_first)->xh_entries[0].xe_name_hash);
4107
3520out: 4108out:
3521 brelse(bh); 4109 ocfs2_xattr_bucket_free(new_first);
4110 ocfs2_xattr_bucket_free(old_first);
3522 return ret; 4111 return ret;
3523} 4112}
3524 4113
@@ -3534,7 +4123,7 @@ static int ocfs2_divide_xattr_cluster(struct inode *inode,
3534 u32 *first_hash) 4123 u32 *first_hash)
3535{ 4124{
3536 u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb); 4125 u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
3537 int ret, credits = 2 * blk_per_bucket; 4126 int ret, credits = 2 * blk_per_bucket + handle->h_buffer_credits;
3538 4127
3539 BUG_ON(OCFS2_XATTR_BUCKET_SIZE < OCFS2_SB(inode->i_sb)->s_clustersize); 4128 BUG_ON(OCFS2_XATTR_BUCKET_SIZE < OCFS2_SB(inode->i_sb)->s_clustersize);
3540 4129
@@ -3577,43 +4166,49 @@ static int ocfs2_divide_xattr_cluster(struct inode *inode,
3577 */ 4166 */
3578static int ocfs2_adjust_xattr_cross_cluster(struct inode *inode, 4167static int ocfs2_adjust_xattr_cross_cluster(struct inode *inode,
3579 handle_t *handle, 4168 handle_t *handle,
3580 struct buffer_head **first_bh, 4169 struct ocfs2_xattr_bucket *first,
3581 struct buffer_head **header_bh, 4170 struct ocfs2_xattr_bucket *target,
3582 u64 new_blk, 4171 u64 new_blk,
3583 u64 prev_blk,
3584 u32 prev_clusters, 4172 u32 prev_clusters,
3585 u32 *v_start, 4173 u32 *v_start,
3586 int *extend) 4174 int *extend)
3587{ 4175{
3588 int ret = 0; 4176 int ret;
3589 int bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1);
3590 4177
3591 mlog(0, "adjust xattrs from cluster %llu len %u to %llu\n", 4178 mlog(0, "adjust xattrs from cluster %llu len %u to %llu\n",
3592 (unsigned long long)prev_blk, prev_clusters, 4179 (unsigned long long)bucket_blkno(first), prev_clusters,
3593 (unsigned long long)new_blk); 4180 (unsigned long long)new_blk);
3594 4181
3595 if (ocfs2_xattr_buckets_per_cluster(OCFS2_SB(inode->i_sb)) > 1) 4182 if (ocfs2_xattr_buckets_per_cluster(OCFS2_SB(inode->i_sb)) > 1) {
3596 ret = ocfs2_mv_xattr_bucket_cross_cluster(inode, 4183 ret = ocfs2_mv_xattr_bucket_cross_cluster(inode,
3597 handle, 4184 handle,
3598 first_bh, 4185 first, target,
3599 header_bh,
3600 new_blk, 4186 new_blk,
3601 prev_blk,
3602 prev_clusters, 4187 prev_clusters,
3603 v_start); 4188 v_start);
3604 else { 4189 if (ret)
3605 u64 last_blk = prev_blk + bpc * (prev_clusters - 1); 4190 mlog_errno(ret);
3606 4191 } else {
3607 if (prev_clusters > 1 && (*header_bh)->b_blocknr != last_blk) 4192 /* The start of the last cluster in the first extent */
3608 ret = ocfs2_cp_xattr_cluster(inode, handle, *first_bh, 4193 u64 last_blk = bucket_blkno(first) +
3609 last_blk, new_blk, 4194 ((prev_clusters - 1) *
4195 ocfs2_clusters_to_blocks(inode->i_sb, 1));
4196
4197 if (prev_clusters > 1 && bucket_blkno(target) != last_blk) {
4198 ret = ocfs2_mv_xattr_buckets(inode, handle,
4199 bucket_blkno(first),
4200 last_blk, new_blk, 0,
3610 v_start); 4201 v_start);
3611 else { 4202 if (ret)
4203 mlog_errno(ret);
4204 } else {
3612 ret = ocfs2_divide_xattr_cluster(inode, handle, 4205 ret = ocfs2_divide_xattr_cluster(inode, handle,
3613 last_blk, new_blk, 4206 last_blk, new_blk,
3614 v_start); 4207 v_start);
4208 if (ret)
4209 mlog_errno(ret);
3615 4210
3616 if ((*header_bh)->b_blocknr == last_blk && extend) 4211 if ((bucket_blkno(target) == last_blk) && extend)
3617 *extend = 0; 4212 *extend = 0;
3618 } 4213 }
3619 } 4214 }
@@ -3639,56 +4234,37 @@ static int ocfs2_adjust_xattr_cross_cluster(struct inode *inode,
3639 */ 4234 */
3640static int ocfs2_add_new_xattr_cluster(struct inode *inode, 4235static int ocfs2_add_new_xattr_cluster(struct inode *inode,
3641 struct buffer_head *root_bh, 4236 struct buffer_head *root_bh,
3642 struct buffer_head **first_bh, 4237 struct ocfs2_xattr_bucket *first,
3643 struct buffer_head **header_bh, 4238 struct ocfs2_xattr_bucket *target,
3644 u32 *num_clusters, 4239 u32 *num_clusters,
3645 u32 prev_cpos, 4240 u32 prev_cpos,
3646 u64 prev_blkno, 4241 int *extend,
3647 int *extend) 4242 struct ocfs2_xattr_set_ctxt *ctxt)
3648{ 4243{
3649 int ret, credits; 4244 int ret;
3650 u16 bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1); 4245 u16 bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1);
3651 u32 prev_clusters = *num_clusters; 4246 u32 prev_clusters = *num_clusters;
3652 u32 clusters_to_add = 1, bit_off, num_bits, v_start = 0; 4247 u32 clusters_to_add = 1, bit_off, num_bits, v_start = 0;
3653 u64 block; 4248 u64 block;
3654 handle_t *handle = NULL; 4249 handle_t *handle = ctxt->handle;
3655 struct ocfs2_alloc_context *data_ac = NULL;
3656 struct ocfs2_alloc_context *meta_ac = NULL;
3657 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); 4250 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
3658 struct ocfs2_extent_tree et; 4251 struct ocfs2_extent_tree et;
3659 4252
3660 mlog(0, "Add new xattr cluster for %llu, previous xattr hash = %u, " 4253 mlog(0, "Add new xattr cluster for %llu, previous xattr hash = %u, "
3661 "previous xattr blkno = %llu\n", 4254 "previous xattr blkno = %llu\n",
3662 (unsigned long long)OCFS2_I(inode)->ip_blkno, 4255 (unsigned long long)OCFS2_I(inode)->ip_blkno,
3663 prev_cpos, (unsigned long long)prev_blkno); 4256 prev_cpos, (unsigned long long)bucket_blkno(first));
3664 4257
3665 ocfs2_init_xattr_tree_extent_tree(&et, inode, root_bh); 4258 ocfs2_init_xattr_tree_extent_tree(&et, inode, root_bh);
3666 4259
3667 ret = ocfs2_lock_allocators(inode, &et, clusters_to_add, 0, 4260 ret = ocfs2_journal_access_xb(handle, inode, root_bh,
3668 &data_ac, &meta_ac); 4261 OCFS2_JOURNAL_ACCESS_WRITE);
3669 if (ret) {
3670 mlog_errno(ret);
3671 goto leave;
3672 }
3673
3674 credits = ocfs2_calc_extend_credits(osb->sb, et.et_root_el,
3675 clusters_to_add);
3676 handle = ocfs2_start_trans(osb, credits);
3677 if (IS_ERR(handle)) {
3678 ret = PTR_ERR(handle);
3679 handle = NULL;
3680 mlog_errno(ret);
3681 goto leave;
3682 }
3683
3684 ret = ocfs2_journal_access(handle, inode, root_bh,
3685 OCFS2_JOURNAL_ACCESS_WRITE);
3686 if (ret < 0) { 4262 if (ret < 0) {
3687 mlog_errno(ret); 4263 mlog_errno(ret);
3688 goto leave; 4264 goto leave;
3689 } 4265 }
3690 4266
3691 ret = __ocfs2_claim_clusters(osb, handle, data_ac, 1, 4267 ret = __ocfs2_claim_clusters(osb, handle, ctxt->data_ac, 1,
3692 clusters_to_add, &bit_off, &num_bits); 4268 clusters_to_add, &bit_off, &num_bits);
3693 if (ret < 0) { 4269 if (ret < 0) {
3694 if (ret != -ENOSPC) 4270 if (ret != -ENOSPC)
@@ -3702,7 +4278,7 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
3702 mlog(0, "Allocating %u clusters at block %u for xattr in inode %llu\n", 4278 mlog(0, "Allocating %u clusters at block %u for xattr in inode %llu\n",
3703 num_bits, bit_off, (unsigned long long)OCFS2_I(inode)->ip_blkno); 4279 num_bits, bit_off, (unsigned long long)OCFS2_I(inode)->ip_blkno);
3704 4280
3705 if (prev_blkno + prev_clusters * bpc == block && 4281 if (bucket_blkno(first) + (prev_clusters * bpc) == block &&
3706 (prev_clusters + num_bits) << osb->s_clustersize_bits <= 4282 (prev_clusters + num_bits) << osb->s_clustersize_bits <=
3707 OCFS2_MAX_XATTR_TREE_LEAF_SIZE) { 4283 OCFS2_MAX_XATTR_TREE_LEAF_SIZE) {
3708 /* 4284 /*
@@ -3721,10 +4297,9 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
3721 } else { 4297 } else {
3722 ret = ocfs2_adjust_xattr_cross_cluster(inode, 4298 ret = ocfs2_adjust_xattr_cross_cluster(inode,
3723 handle, 4299 handle,
3724 first_bh, 4300 first,
3725 header_bh, 4301 target,
3726 block, 4302 block,
3727 prev_blkno,
3728 prev_clusters, 4303 prev_clusters,
3729 &v_start, 4304 &v_start,
3730 extend); 4305 extend);
@@ -3734,149 +4309,137 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
3734 } 4309 }
3735 } 4310 }
3736 4311
3737 if (handle->h_buffer_credits < credits) {
3738 /*
3739 * The journal has been restarted before, and don't
3740 * have enough space for the insertion, so extend it
3741 * here.
3742 */
3743 ret = ocfs2_extend_trans(handle, credits);
3744 if (ret) {
3745 mlog_errno(ret);
3746 goto leave;
3747 }
3748 }
3749 mlog(0, "Insert %u clusters at block %llu for xattr at %u\n", 4312 mlog(0, "Insert %u clusters at block %llu for xattr at %u\n",
3750 num_bits, (unsigned long long)block, v_start); 4313 num_bits, (unsigned long long)block, v_start);
3751 ret = ocfs2_insert_extent(osb, handle, inode, &et, v_start, block, 4314 ret = ocfs2_insert_extent(osb, handle, inode, &et, v_start, block,
3752 num_bits, 0, meta_ac); 4315 num_bits, 0, ctxt->meta_ac);
3753 if (ret < 0) { 4316 if (ret < 0) {
3754 mlog_errno(ret); 4317 mlog_errno(ret);
3755 goto leave; 4318 goto leave;
3756 } 4319 }
3757 4320
3758 ret = ocfs2_journal_dirty(handle, root_bh); 4321 ret = ocfs2_journal_dirty(handle, root_bh);
3759 if (ret < 0) { 4322 if (ret < 0)
3760 mlog_errno(ret); 4323 mlog_errno(ret);
3761 goto leave;
3762 }
3763 4324
3764leave: 4325leave:
3765 if (handle)
3766 ocfs2_commit_trans(osb, handle);
3767 if (data_ac)
3768 ocfs2_free_alloc_context(data_ac);
3769 if (meta_ac)
3770 ocfs2_free_alloc_context(meta_ac);
3771
3772 return ret; 4326 return ret;
3773} 4327}
3774 4328
3775/* 4329/*
3776 * Extend a new xattr bucket and move xattrs to the end one by one until 4330 * We are given an extent. 'first' is the bucket at the very front of
3777 * We meet with start_bh. Only move half of the xattrs to the bucket after it. 4331 * the extent. The extent has space for an additional bucket past
4332 * bucket_xh(first)->xh_num_buckets. 'target_blkno' is the block number
4333 * of the target bucket. We wish to shift every bucket past the target
4334 * down one, filling in that additional space. When we get back to the
4335 * target, we split the target between itself and the now-empty bucket
4336 * at target+1 (aka, target_blkno + blks_per_bucket).
3778 */ 4337 */
3779static int ocfs2_extend_xattr_bucket(struct inode *inode, 4338static int ocfs2_extend_xattr_bucket(struct inode *inode,
3780 struct buffer_head *first_bh, 4339 handle_t *handle,
3781 struct buffer_head *start_bh, 4340 struct ocfs2_xattr_bucket *first,
4341 u64 target_blk,
3782 u32 num_clusters) 4342 u32 num_clusters)
3783{ 4343{
3784 int ret, credits; 4344 int ret, credits;
3785 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); 4345 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
3786 u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb); 4346 u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
3787 u64 start_blk = start_bh->b_blocknr, end_blk; 4347 u64 end_blk;
3788 u32 num_buckets = num_clusters * ocfs2_xattr_buckets_per_cluster(osb); 4348 u16 new_bucket = le16_to_cpu(bucket_xh(first)->xh_num_buckets);
3789 handle_t *handle;
3790 struct ocfs2_xattr_header *first_xh =
3791 (struct ocfs2_xattr_header *)first_bh->b_data;
3792 u16 bucket = le16_to_cpu(first_xh->xh_num_buckets);
3793 4349
3794 mlog(0, "extend xattr bucket in %llu, xattr extend rec starting " 4350 mlog(0, "extend xattr bucket in %llu, xattr extend rec starting "
3795 "from %llu, len = %u\n", (unsigned long long)start_blk, 4351 "from %llu, len = %u\n", (unsigned long long)target_blk,
3796 (unsigned long long)first_bh->b_blocknr, num_clusters); 4352 (unsigned long long)bucket_blkno(first), num_clusters);
3797 4353
3798 BUG_ON(bucket >= num_buckets); 4354 /* The extent must have room for an additional bucket */
4355 BUG_ON(new_bucket >=
4356 (num_clusters * ocfs2_xattr_buckets_per_cluster(osb)));
3799 4357
3800 end_blk = first_bh->b_blocknr + (bucket - 1) * blk_per_bucket; 4358 /* end_blk points to the last existing bucket */
4359 end_blk = bucket_blkno(first) + ((new_bucket - 1) * blk_per_bucket);
3801 4360
3802 /* 4361 /*
3803 * We will touch all the buckets after the start_bh(include it). 4362 * end_blk is the start of the last existing bucket.
3804 * Add one more bucket and modify the first_bh. 4363 * Thus, (end_blk - target_blk) covers the target bucket and
4364 * every bucket after it up to, but not including, the last
4365 * existing bucket. Then we add the last existing bucket, the
4366 * new bucket, and the first bucket (3 * blk_per_bucket).
3805 */ 4367 */
3806 credits = end_blk - start_blk + 2 * blk_per_bucket + 1; 4368 credits = (end_blk - target_blk) + (3 * blk_per_bucket) +
3807 handle = ocfs2_start_trans(osb, credits); 4369 handle->h_buffer_credits;
3808 if (IS_ERR(handle)) { 4370 ret = ocfs2_extend_trans(handle, credits);
3809 ret = PTR_ERR(handle); 4371 if (ret) {
3810 handle = NULL;
3811 mlog_errno(ret); 4372 mlog_errno(ret);
3812 goto out; 4373 goto out;
3813 } 4374 }
3814 4375
3815 ret = ocfs2_journal_access(handle, inode, first_bh, 4376 ret = ocfs2_xattr_bucket_journal_access(handle, first,
3816 OCFS2_JOURNAL_ACCESS_WRITE); 4377 OCFS2_JOURNAL_ACCESS_WRITE);
3817 if (ret) { 4378 if (ret) {
3818 mlog_errno(ret); 4379 mlog_errno(ret);
3819 goto commit; 4380 goto out;
3820 } 4381 }
3821 4382
3822 while (end_blk != start_blk) { 4383 while (end_blk != target_blk) {
3823 ret = ocfs2_cp_xattr_bucket(inode, handle, end_blk, 4384 ret = ocfs2_cp_xattr_bucket(inode, handle, end_blk,
3824 end_blk + blk_per_bucket, 0); 4385 end_blk + blk_per_bucket, 0);
3825 if (ret) 4386 if (ret)
3826 goto commit; 4387 goto out;
3827 end_blk -= blk_per_bucket; 4388 end_blk -= blk_per_bucket;
3828 } 4389 }
3829 4390
3830 /* Move half of the xattr in start_blk to the next bucket. */ 4391 /* Move half of the xattr in target_blkno to the next bucket. */
3831 ret = ocfs2_divide_xattr_bucket(inode, handle, start_blk, 4392 ret = ocfs2_divide_xattr_bucket(inode, handle, target_blk,
3832 start_blk + blk_per_bucket, NULL, 0); 4393 target_blk + blk_per_bucket, NULL, 0);
3833 4394
3834 le16_add_cpu(&first_xh->xh_num_buckets, 1); 4395 le16_add_cpu(&bucket_xh(first)->xh_num_buckets, 1);
3835 ocfs2_journal_dirty(handle, first_bh); 4396 ocfs2_xattr_bucket_journal_dirty(handle, first);
3836 4397
3837commit:
3838 ocfs2_commit_trans(osb, handle);
3839out: 4398out:
3840 return ret; 4399 return ret;
3841} 4400}
3842 4401
3843/* 4402/*
3844 * Add new xattr bucket in an extent record and adjust the buckets accordingly. 4403 * Add new xattr bucket in an extent record and adjust the buckets
3845 * xb_bh is the ocfs2_xattr_block. 4404 * accordingly. xb_bh is the ocfs2_xattr_block, and target is the
3846 * We will move all the buckets starting from header_bh to the next place. As 4405 * bucket we want to insert into.
3847 * for this one, half num of its xattrs will be moved to the next one. 4406 *
4407 * In the easy case, we will move all the buckets after target down by
4408 * one. Half of target's xattrs will be moved to the next bucket.
3848 * 4409 *
3849 * We will allocate a new cluster if current cluster is full and adjust 4410 * If current cluster is full, we'll allocate a new one. This may not
3850 * header_bh and first_bh if the insert place is moved to the new cluster. 4411 * be contiguous. The underlying calls will make sure that there is
4412 * space for the insert, shifting buckets around if necessary.
4413 * 'target' may be moved by those calls.
3851 */ 4414 */
3852static int ocfs2_add_new_xattr_bucket(struct inode *inode, 4415static int ocfs2_add_new_xattr_bucket(struct inode *inode,
3853 struct buffer_head *xb_bh, 4416 struct buffer_head *xb_bh,
3854 struct buffer_head *header_bh) 4417 struct ocfs2_xattr_bucket *target,
4418 struct ocfs2_xattr_set_ctxt *ctxt)
3855{ 4419{
3856 struct ocfs2_xattr_header *first_xh = NULL;
3857 struct buffer_head *first_bh = NULL;
3858 struct ocfs2_xattr_block *xb = 4420 struct ocfs2_xattr_block *xb =
3859 (struct ocfs2_xattr_block *)xb_bh->b_data; 4421 (struct ocfs2_xattr_block *)xb_bh->b_data;
3860 struct ocfs2_xattr_tree_root *xb_root = &xb->xb_attrs.xb_root; 4422 struct ocfs2_xattr_tree_root *xb_root = &xb->xb_attrs.xb_root;
3861 struct ocfs2_extent_list *el = &xb_root->xt_list; 4423 struct ocfs2_extent_list *el = &xb_root->xt_list;
3862 struct ocfs2_xattr_header *xh = 4424 u32 name_hash =
3863 (struct ocfs2_xattr_header *)header_bh->b_data; 4425 le32_to_cpu(bucket_xh(target)->xh_entries[0].xe_name_hash);
3864 u32 name_hash = le32_to_cpu(xh->xh_entries[0].xe_name_hash); 4426 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
3865 struct super_block *sb = inode->i_sb;
3866 struct ocfs2_super *osb = OCFS2_SB(sb);
3867 int ret, num_buckets, extend = 1; 4427 int ret, num_buckets, extend = 1;
3868 u64 p_blkno; 4428 u64 p_blkno;
3869 u32 e_cpos, num_clusters; 4429 u32 e_cpos, num_clusters;
4430 /* The bucket at the front of the extent */
4431 struct ocfs2_xattr_bucket *first;
3870 4432
3871 mlog(0, "Add new xattr bucket starting form %llu\n", 4433 mlog(0, "Add new xattr bucket starting from %llu\n",
3872 (unsigned long long)header_bh->b_blocknr); 4434 (unsigned long long)bucket_blkno(target));
3873 4435
3874 /* 4436 /* The first bucket of the original extent */
3875 * Add refrence for header_bh here because it may be 4437 first = ocfs2_xattr_bucket_new(inode);
3876 * changed in ocfs2_add_new_xattr_cluster and we need 4438 if (!first) {
3877 * to free it in the end. 4439 ret = -ENOMEM;
3878 */ 4440 mlog_errno(ret);
3879 get_bh(header_bh); 4441 goto out;
4442 }
3880 4443
3881 ret = ocfs2_xattr_get_rec(inode, name_hash, &p_blkno, &e_cpos, 4444 ret = ocfs2_xattr_get_rec(inode, name_hash, &p_blkno, &e_cpos,
3882 &num_clusters, el); 4445 &num_clusters, el);
@@ -3885,40 +4448,45 @@ static int ocfs2_add_new_xattr_bucket(struct inode *inode,
3885 goto out; 4448 goto out;
3886 } 4449 }
3887 4450
3888 ret = ocfs2_read_block(inode, p_blkno, &first_bh); 4451 ret = ocfs2_read_xattr_bucket(first, p_blkno);
3889 if (ret) { 4452 if (ret) {
3890 mlog_errno(ret); 4453 mlog_errno(ret);
3891 goto out; 4454 goto out;
3892 } 4455 }
3893 4456
3894 num_buckets = ocfs2_xattr_buckets_per_cluster(osb) * num_clusters; 4457 num_buckets = ocfs2_xattr_buckets_per_cluster(osb) * num_clusters;
3895 first_xh = (struct ocfs2_xattr_header *)first_bh->b_data; 4458 if (num_buckets == le16_to_cpu(bucket_xh(first)->xh_num_buckets)) {
3896 4459 /*
3897 if (num_buckets == le16_to_cpu(first_xh->xh_num_buckets)) { 4460 * This can move first+target if the target bucket moves
4461 * to the new extent.
4462 */
3898 ret = ocfs2_add_new_xattr_cluster(inode, 4463 ret = ocfs2_add_new_xattr_cluster(inode,
3899 xb_bh, 4464 xb_bh,
3900 &first_bh, 4465 first,
3901 &header_bh, 4466 target,
3902 &num_clusters, 4467 &num_clusters,
3903 e_cpos, 4468 e_cpos,
3904 p_blkno, 4469 &extend,
3905 &extend); 4470 ctxt);
3906 if (ret) { 4471 if (ret) {
3907 mlog_errno(ret); 4472 mlog_errno(ret);
3908 goto out; 4473 goto out;
3909 } 4474 }
3910 } 4475 }
3911 4476
3912 if (extend) 4477 if (extend) {
3913 ret = ocfs2_extend_xattr_bucket(inode, 4478 ret = ocfs2_extend_xattr_bucket(inode,
3914 first_bh, 4479 ctxt->handle,
3915 header_bh, 4480 first,
4481 bucket_blkno(target),
3916 num_clusters); 4482 num_clusters);
3917 if (ret) 4483 if (ret)
3918 mlog_errno(ret); 4484 mlog_errno(ret);
4485 }
4486
3919out: 4487out:
3920 brelse(first_bh); 4488 ocfs2_xattr_bucket_free(first);
3921 brelse(header_bh); 4489
3922 return ret; 4490 return ret;
3923} 4491}
3924 4492
@@ -3929,7 +4497,7 @@ static inline char *ocfs2_xattr_bucket_get_val(struct inode *inode,
3929 int block_off = offs >> inode->i_sb->s_blocksize_bits; 4497 int block_off = offs >> inode->i_sb->s_blocksize_bits;
3930 4498
3931 offs = offs % inode->i_sb->s_blocksize; 4499 offs = offs % inode->i_sb->s_blocksize;
3932 return bucket->bhs[block_off]->b_data + offs; 4500 return bucket_block(bucket, block_off) + offs;
3933} 4501}
3934 4502
3935/* 4503/*
@@ -3984,7 +4552,7 @@ static void ocfs2_xattr_set_entry_normal(struct inode *inode,
3984 xe->xe_value_size = 0; 4552 xe->xe_value_size = 0;
3985 4553
3986 val = ocfs2_xattr_bucket_get_val(inode, 4554 val = ocfs2_xattr_bucket_get_val(inode,
3987 &xs->bucket, offs); 4555 xs->bucket, offs);
3988 memset(val + OCFS2_XATTR_SIZE(name_len), 0, 4556 memset(val + OCFS2_XATTR_SIZE(name_len), 0,
3989 size - OCFS2_XATTR_SIZE(name_len)); 4557 size - OCFS2_XATTR_SIZE(name_len));
3990 if (OCFS2_XATTR_SIZE(xi->value_len) > 0) 4558 if (OCFS2_XATTR_SIZE(xi->value_len) > 0)
@@ -4062,8 +4630,7 @@ set_new_name_value:
4062 xh->xh_free_start = cpu_to_le16(offs); 4630 xh->xh_free_start = cpu_to_le16(offs);
4063 } 4631 }
4064 4632
4065 val = ocfs2_xattr_bucket_get_val(inode, 4633 val = ocfs2_xattr_bucket_get_val(inode, xs->bucket, offs - size);
4066 &xs->bucket, offs - size);
4067 xe->xe_name_offset = cpu_to_le16(offs - size); 4634 xe->xe_name_offset = cpu_to_le16(offs - size);
4068 4635
4069 memset(val, 0, size); 4636 memset(val, 0, size);
@@ -4079,125 +4646,45 @@ set_new_name_value:
4079 return; 4646 return;
4080} 4647}
4081 4648
4082static int ocfs2_xattr_bucket_handle_journal(struct inode *inode,
4083 handle_t *handle,
4084 struct ocfs2_xattr_search *xs,
4085 struct buffer_head **bhs,
4086 u16 bh_num)
4087{
4088 int ret = 0, off, block_off;
4089 struct ocfs2_xattr_entry *xe = xs->here;
4090
4091 /*
4092 * First calculate all the blocks we should journal_access
4093 * and journal_dirty. The first block should always be touched.
4094 */
4095 ret = ocfs2_journal_dirty(handle, bhs[0]);
4096 if (ret)
4097 mlog_errno(ret);
4098
4099 /* calc the data. */
4100 off = le16_to_cpu(xe->xe_name_offset);
4101 block_off = off >> inode->i_sb->s_blocksize_bits;
4102 ret = ocfs2_journal_dirty(handle, bhs[block_off]);
4103 if (ret)
4104 mlog_errno(ret);
4105
4106 return ret;
4107}
4108
4109/* 4649/*
4110 * Set the xattr entry in the specified bucket. 4650 * Set the xattr entry in the specified bucket.
4111 * The bucket is indicated by xs->bucket and it should have the enough 4651 * The bucket is indicated by xs->bucket and it should have the enough
4112 * space for the xattr insertion. 4652 * space for the xattr insertion.
4113 */ 4653 */
4114static int ocfs2_xattr_set_entry_in_bucket(struct inode *inode, 4654static int ocfs2_xattr_set_entry_in_bucket(struct inode *inode,
4655 handle_t *handle,
4115 struct ocfs2_xattr_info *xi, 4656 struct ocfs2_xattr_info *xi,
4116 struct ocfs2_xattr_search *xs, 4657 struct ocfs2_xattr_search *xs,
4117 u32 name_hash, 4658 u32 name_hash,
4118 int local) 4659 int local)
4119{ 4660{
4120 int i, ret; 4661 int ret;
4121 handle_t *handle = NULL; 4662 u64 blkno;
4122 u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
4123 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
4124 4663
4125 mlog(0, "Set xattr entry len = %lu index = %d in bucket %llu\n", 4664 mlog(0, "Set xattr entry len = %lu index = %d in bucket %llu\n",
4126 (unsigned long)xi->value_len, xi->name_index, 4665 (unsigned long)xi->value_len, xi->name_index,
4127 (unsigned long long)xs->bucket.bhs[0]->b_blocknr); 4666 (unsigned long long)bucket_blkno(xs->bucket));
4128 4667
4129 if (!xs->bucket.bhs[1]) { 4668 if (!xs->bucket->bu_bhs[1]) {
4130 ret = ocfs2_read_blocks(inode, 4669 blkno = bucket_blkno(xs->bucket);
4131 xs->bucket.bhs[0]->b_blocknr + 1, 4670 ocfs2_xattr_bucket_relse(xs->bucket);
4132 blk_per_bucket - 1, &xs->bucket.bhs[1], 4671 ret = ocfs2_read_xattr_bucket(xs->bucket, blkno);
4133 0);
4134 if (ret) { 4672 if (ret) {
4135 mlog_errno(ret); 4673 mlog_errno(ret);
4136 goto out; 4674 goto out;
4137 } 4675 }
4138 } 4676 }
4139 4677
4140 handle = ocfs2_start_trans(osb, blk_per_bucket); 4678 ret = ocfs2_xattr_bucket_journal_access(handle, xs->bucket,
4141 if (IS_ERR(handle)) { 4679 OCFS2_JOURNAL_ACCESS_WRITE);
4142 ret = PTR_ERR(handle); 4680 if (ret < 0) {
4143 handle = NULL;
4144 mlog_errno(ret); 4681 mlog_errno(ret);
4145 goto out; 4682 goto out;
4146 } 4683 }
4147 4684
4148 for (i = 0; i < blk_per_bucket; i++) {
4149 ret = ocfs2_journal_access(handle, inode, xs->bucket.bhs[i],
4150 OCFS2_JOURNAL_ACCESS_WRITE);
4151 if (ret < 0) {
4152 mlog_errno(ret);
4153 goto out;
4154 }
4155 }
4156
4157 ocfs2_xattr_set_entry_normal(inode, xi, xs, name_hash, local); 4685 ocfs2_xattr_set_entry_normal(inode, xi, xs, name_hash, local);
4686 ocfs2_xattr_bucket_journal_dirty(handle, xs->bucket);
4158 4687
4159 /*Only dirty the blocks we have touched in set xattr. */
4160 ret = ocfs2_xattr_bucket_handle_journal(inode, handle, xs,
4161 xs->bucket.bhs, blk_per_bucket);
4162 if (ret)
4163 mlog_errno(ret);
4164out:
4165 ocfs2_commit_trans(osb, handle);
4166
4167 return ret;
4168}
4169
4170static int ocfs2_xattr_value_update_size(struct inode *inode,
4171 struct buffer_head *xe_bh,
4172 struct ocfs2_xattr_entry *xe,
4173 u64 new_size)
4174{
4175 int ret;
4176 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
4177 handle_t *handle = NULL;
4178
4179 handle = ocfs2_start_trans(osb, 1);
4180 if (IS_ERR(handle)) {
4181 ret = -ENOMEM;
4182 mlog_errno(ret);
4183 goto out;
4184 }
4185
4186 ret = ocfs2_journal_access(handle, inode, xe_bh,
4187 OCFS2_JOURNAL_ACCESS_WRITE);
4188 if (ret < 0) {
4189 mlog_errno(ret);
4190 goto out_commit;
4191 }
4192
4193 xe->xe_value_size = cpu_to_le64(new_size);
4194
4195 ret = ocfs2_journal_dirty(handle, xe_bh);
4196 if (ret < 0)
4197 mlog_errno(ret);
4198
4199out_commit:
4200 ocfs2_commit_trans(osb, handle);
4201out: 4688out:
4202 return ret; 4689 return ret;
4203} 4690}
@@ -4210,18 +4697,19 @@ out:
4210 * Copy the new updated xe and xe_value_root to new_xe and new_xv if needed. 4697 * Copy the new updated xe and xe_value_root to new_xe and new_xv if needed.
4211 */ 4698 */
4212static int ocfs2_xattr_bucket_value_truncate(struct inode *inode, 4699static int ocfs2_xattr_bucket_value_truncate(struct inode *inode,
4213 struct buffer_head *header_bh, 4700 struct ocfs2_xattr_bucket *bucket,
4214 int xe_off, 4701 int xe_off,
4215 int len) 4702 int len,
4703 struct ocfs2_xattr_set_ctxt *ctxt)
4216{ 4704{
4217 int ret, offset; 4705 int ret, offset;
4218 u64 value_blk; 4706 u64 value_blk;
4219 struct buffer_head *value_bh = NULL;
4220 struct ocfs2_xattr_value_root *xv;
4221 struct ocfs2_xattr_entry *xe; 4707 struct ocfs2_xattr_entry *xe;
4222 struct ocfs2_xattr_header *xh = 4708 struct ocfs2_xattr_header *xh = bucket_xh(bucket);
4223 (struct ocfs2_xattr_header *)header_bh->b_data;
4224 size_t blocksize = inode->i_sb->s_blocksize; 4709 size_t blocksize = inode->i_sb->s_blocksize;
4710 struct ocfs2_xattr_value_buf vb = {
4711 .vb_access = ocfs2_journal_access,
4712 };
4225 4713
4226 xe = &xh->xh_entries[xe_off]; 4714 xe = &xh->xh_entries[xe_off];
4227 4715
@@ -4234,49 +4722,58 @@ static int ocfs2_xattr_bucket_value_truncate(struct inode *inode,
4234 4722
4235 /* We don't allow ocfs2_xattr_value to be stored in different block. */ 4723 /* We don't allow ocfs2_xattr_value to be stored in different block. */
4236 BUG_ON(value_blk != (offset + OCFS2_XATTR_ROOT_SIZE - 1) / blocksize); 4724 BUG_ON(value_blk != (offset + OCFS2_XATTR_ROOT_SIZE - 1) / blocksize);
4237 value_blk += header_bh->b_blocknr;
4238 4725
4239 ret = ocfs2_read_block(inode, value_blk, &value_bh); 4726 vb.vb_bh = bucket->bu_bhs[value_blk];
4240 if (ret) { 4727 BUG_ON(!vb.vb_bh);
4241 mlog_errno(ret);
4242 goto out;
4243 }
4244 4728
4245 xv = (struct ocfs2_xattr_value_root *) 4729 vb.vb_xv = (struct ocfs2_xattr_value_root *)
4246 (value_bh->b_data + offset % blocksize); 4730 (vb.vb_bh->b_data + offset % blocksize);
4247 4731
4248 mlog(0, "truncate %u in xattr bucket %llu to %d bytes.\n", 4732 ret = ocfs2_xattr_bucket_journal_access(ctxt->handle, bucket,
4249 xe_off, (unsigned long long)header_bh->b_blocknr, len); 4733 OCFS2_JOURNAL_ACCESS_WRITE);
4250 ret = ocfs2_xattr_value_truncate(inode, value_bh, xv, len);
4251 if (ret) { 4734 if (ret) {
4252 mlog_errno(ret); 4735 mlog_errno(ret);
4253 goto out; 4736 goto out;
4254 } 4737 }
4255 4738
4256 ret = ocfs2_xattr_value_update_size(inode, header_bh, xe, len); 4739 /*
4740 * From here on out we have to dirty the bucket. The generic
4741 * value calls only modify one of the bucket's bhs, but we need
4742 * to send the bucket at once. So if they error, they *could* have
4743 * modified something. We have to assume they did, and dirty
4744 * the whole bucket. This leaves us in a consistent state.
4745 */
4746 mlog(0, "truncate %u in xattr bucket %llu to %d bytes.\n",
4747 xe_off, (unsigned long long)bucket_blkno(bucket), len);
4748 ret = ocfs2_xattr_value_truncate(inode, &vb, len, ctxt);
4257 if (ret) { 4749 if (ret) {
4258 mlog_errno(ret); 4750 mlog_errno(ret);
4259 goto out; 4751 goto out_dirty;
4260 } 4752 }
4261 4753
4754 xe->xe_value_size = cpu_to_le64(len);
4755
4756out_dirty:
4757 ocfs2_xattr_bucket_journal_dirty(ctxt->handle, bucket);
4758
4262out: 4759out:
4263 brelse(value_bh);
4264 return ret; 4760 return ret;
4265} 4761}
4266 4762
4267static int ocfs2_xattr_bucket_value_truncate_xs(struct inode *inode, 4763static int ocfs2_xattr_bucket_value_truncate_xs(struct inode *inode,
4268 struct ocfs2_xattr_search *xs, 4764 struct ocfs2_xattr_search *xs,
4269 int len) 4765 int len,
4766 struct ocfs2_xattr_set_ctxt *ctxt)
4270{ 4767{
4271 int ret, offset; 4768 int ret, offset;
4272 struct ocfs2_xattr_entry *xe = xs->here; 4769 struct ocfs2_xattr_entry *xe = xs->here;
4273 struct ocfs2_xattr_header *xh = (struct ocfs2_xattr_header *)xs->base; 4770 struct ocfs2_xattr_header *xh = (struct ocfs2_xattr_header *)xs->base;
4274 4771
4275 BUG_ON(!xs->bucket.bhs[0] || !xe || ocfs2_xattr_is_local(xe)); 4772 BUG_ON(!xs->bucket->bu_bhs[0] || !xe || ocfs2_xattr_is_local(xe));
4276 4773
4277 offset = xe - xh->xh_entries; 4774 offset = xe - xh->xh_entries;
4278 ret = ocfs2_xattr_bucket_value_truncate(inode, xs->bucket.bhs[0], 4775 ret = ocfs2_xattr_bucket_value_truncate(inode, xs->bucket,
4279 offset, len); 4776 offset, len, ctxt);
4280 if (ret) 4777 if (ret)
4281 mlog_errno(ret); 4778 mlog_errno(ret);
4282 4779
@@ -4284,6 +4781,7 @@ static int ocfs2_xattr_bucket_value_truncate_xs(struct inode *inode,
4284} 4781}
4285 4782
4286static int ocfs2_xattr_bucket_set_value_outside(struct inode *inode, 4783static int ocfs2_xattr_bucket_set_value_outside(struct inode *inode,
4784 handle_t *handle,
4287 struct ocfs2_xattr_search *xs, 4785 struct ocfs2_xattr_search *xs,
4288 char *val, 4786 char *val,
4289 int value_len) 4787 int value_len)
@@ -4299,7 +4797,8 @@ static int ocfs2_xattr_bucket_set_value_outside(struct inode *inode,
4299 4797
4300 xv = (struct ocfs2_xattr_value_root *)(xs->base + offset); 4798 xv = (struct ocfs2_xattr_value_root *)(xs->base + offset);
4301 4799
4302 return __ocfs2_xattr_set_value_outside(inode, xv, val, value_len); 4800 return __ocfs2_xattr_set_value_outside(inode, handle,
4801 xv, val, value_len);
4303} 4802}
4304 4803
4305static int ocfs2_rm_xattr_cluster(struct inode *inode, 4804static int ocfs2_rm_xattr_cluster(struct inode *inode,
@@ -4343,15 +4842,15 @@ static int ocfs2_rm_xattr_cluster(struct inode *inode,
4343 } 4842 }
4344 } 4843 }
4345 4844
4346 handle = ocfs2_start_trans(osb, OCFS2_REMOVE_EXTENT_CREDITS); 4845 handle = ocfs2_start_trans(osb, ocfs2_remove_extent_credits(osb->sb));
4347 if (IS_ERR(handle)) { 4846 if (IS_ERR(handle)) {
4348 ret = -ENOMEM; 4847 ret = -ENOMEM;
4349 mlog_errno(ret); 4848 mlog_errno(ret);
4350 goto out; 4849 goto out;
4351 } 4850 }
4352 4851
4353 ret = ocfs2_journal_access(handle, inode, root_bh, 4852 ret = ocfs2_journal_access_xb(handle, inode, root_bh,
4354 OCFS2_JOURNAL_ACCESS_WRITE); 4853 OCFS2_JOURNAL_ACCESS_WRITE);
4355 if (ret) { 4854 if (ret) {
4356 mlog_errno(ret); 4855 mlog_errno(ret);
4357 goto out_commit; 4856 goto out_commit;
@@ -4392,26 +4891,19 @@ out:
4392} 4891}
4393 4892
4394static void ocfs2_xattr_bucket_remove_xs(struct inode *inode, 4893static void ocfs2_xattr_bucket_remove_xs(struct inode *inode,
4894 handle_t *handle,
4395 struct ocfs2_xattr_search *xs) 4895 struct ocfs2_xattr_search *xs)
4396{ 4896{
4397 handle_t *handle = NULL; 4897 struct ocfs2_xattr_header *xh = bucket_xh(xs->bucket);
4398 struct ocfs2_xattr_header *xh = xs->bucket.xh;
4399 struct ocfs2_xattr_entry *last = &xh->xh_entries[ 4898 struct ocfs2_xattr_entry *last = &xh->xh_entries[
4400 le16_to_cpu(xh->xh_count) - 1]; 4899 le16_to_cpu(xh->xh_count) - 1];
4401 int ret = 0; 4900 int ret = 0;
4402 4901
4403 handle = ocfs2_start_trans((OCFS2_SB(inode->i_sb)), 1); 4902 ret = ocfs2_xattr_bucket_journal_access(handle, xs->bucket,
4404 if (IS_ERR(handle)) { 4903 OCFS2_JOURNAL_ACCESS_WRITE);
4405 ret = PTR_ERR(handle);
4406 mlog_errno(ret);
4407 return;
4408 }
4409
4410 ret = ocfs2_journal_access(handle, inode, xs->bucket.bhs[0],
4411 OCFS2_JOURNAL_ACCESS_WRITE);
4412 if (ret) { 4904 if (ret) {
4413 mlog_errno(ret); 4905 mlog_errno(ret);
4414 goto out_commit; 4906 return;
4415 } 4907 }
4416 4908
4417 /* Remove the old entry. */ 4909 /* Remove the old entry. */
@@ -4420,11 +4912,7 @@ static void ocfs2_xattr_bucket_remove_xs(struct inode *inode,
4420 memset(last, 0, sizeof(struct ocfs2_xattr_entry)); 4912 memset(last, 0, sizeof(struct ocfs2_xattr_entry));
4421 le16_add_cpu(&xh->xh_count, -1); 4913 le16_add_cpu(&xh->xh_count, -1);
4422 4914
4423 ret = ocfs2_journal_dirty(handle, xs->bucket.bhs[0]); 4915 ocfs2_xattr_bucket_journal_dirty(handle, xs->bucket);
4424 if (ret < 0)
4425 mlog_errno(ret);
4426out_commit:
4427 ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
4428} 4916}
4429 4917
4430/* 4918/*
@@ -4440,7 +4928,8 @@ out_commit:
4440 */ 4928 */
4441static int ocfs2_xattr_set_in_bucket(struct inode *inode, 4929static int ocfs2_xattr_set_in_bucket(struct inode *inode,
4442 struct ocfs2_xattr_info *xi, 4930 struct ocfs2_xattr_info *xi,
4443 struct ocfs2_xattr_search *xs) 4931 struct ocfs2_xattr_search *xs,
4932 struct ocfs2_xattr_set_ctxt *ctxt)
4444{ 4933{
4445 int ret, local = 1; 4934 int ret, local = 1;
4446 size_t value_len; 4935 size_t value_len;
@@ -4468,7 +4957,8 @@ static int ocfs2_xattr_set_in_bucket(struct inode *inode,
4468 value_len = 0; 4957 value_len = 0;
4469 4958
4470 ret = ocfs2_xattr_bucket_value_truncate_xs(inode, xs, 4959 ret = ocfs2_xattr_bucket_value_truncate_xs(inode, xs,
4471 value_len); 4960 value_len,
4961 ctxt);
4472 if (ret) 4962 if (ret)
4473 goto out; 4963 goto out;
4474 4964
@@ -4488,7 +4978,8 @@ static int ocfs2_xattr_set_in_bucket(struct inode *inode,
4488 xi->value_len = OCFS2_XATTR_ROOT_SIZE; 4978 xi->value_len = OCFS2_XATTR_ROOT_SIZE;
4489 } 4979 }
4490 4980
4491 ret = ocfs2_xattr_set_entry_in_bucket(inode, xi, xs, name_hash, local); 4981 ret = ocfs2_xattr_set_entry_in_bucket(inode, ctxt->handle, xi, xs,
4982 name_hash, local);
4492 if (ret) { 4983 if (ret) {
4493 mlog_errno(ret); 4984 mlog_errno(ret);
4494 goto out; 4985 goto out;
@@ -4499,7 +4990,7 @@ static int ocfs2_xattr_set_in_bucket(struct inode *inode,
4499 4990
4500 /* allocate the space now for the outside block storage. */ 4991 /* allocate the space now for the outside block storage. */
4501 ret = ocfs2_xattr_bucket_value_truncate_xs(inode, xs, 4992 ret = ocfs2_xattr_bucket_value_truncate_xs(inode, xs,
4502 value_len); 4993 value_len, ctxt);
4503 if (ret) { 4994 if (ret) {
4504 mlog_errno(ret); 4995 mlog_errno(ret);
4505 4996
@@ -4509,13 +5000,14 @@ static int ocfs2_xattr_set_in_bucket(struct inode *inode,
4509 * storage and we have allocated xattr already, 5000 * storage and we have allocated xattr already,
4510 * so need to remove it. 5001 * so need to remove it.
4511 */ 5002 */
4512 ocfs2_xattr_bucket_remove_xs(inode, xs); 5003 ocfs2_xattr_bucket_remove_xs(inode, ctxt->handle, xs);
4513 } 5004 }
4514 goto out; 5005 goto out;
4515 } 5006 }
4516 5007
4517set_value_outside: 5008set_value_outside:
4518 ret = ocfs2_xattr_bucket_set_value_outside(inode, xs, val, value_len); 5009 ret = ocfs2_xattr_bucket_set_value_outside(inode, ctxt->handle,
5010 xs, val, value_len);
4519out: 5011out:
4520 return ret; 5012 return ret;
4521} 5013}
@@ -4530,7 +5022,7 @@ static int ocfs2_check_xattr_bucket_collision(struct inode *inode,
4530 struct ocfs2_xattr_bucket *bucket, 5022 struct ocfs2_xattr_bucket *bucket,
4531 const char *name) 5023 const char *name)
4532{ 5024{
4533 struct ocfs2_xattr_header *xh = bucket->xh; 5025 struct ocfs2_xattr_header *xh = bucket_xh(bucket);
4534 u32 name_hash = ocfs2_xattr_name_hash(inode, name, strlen(name)); 5026 u32 name_hash = ocfs2_xattr_name_hash(inode, name, strlen(name));
4535 5027
4536 if (name_hash != le32_to_cpu(xh->xh_entries[0].xe_name_hash)) 5028 if (name_hash != le32_to_cpu(xh->xh_entries[0].xe_name_hash))
@@ -4540,7 +5032,7 @@ static int ocfs2_check_xattr_bucket_collision(struct inode *inode,
4540 xh->xh_entries[0].xe_name_hash) { 5032 xh->xh_entries[0].xe_name_hash) {
4541 mlog(ML_ERROR, "Too much hash collision in xattr bucket %llu, " 5033 mlog(ML_ERROR, "Too much hash collision in xattr bucket %llu, "
4542 "hash = %u\n", 5034 "hash = %u\n",
4543 (unsigned long long)bucket->bhs[0]->b_blocknr, 5035 (unsigned long long)bucket_blkno(bucket),
4544 le32_to_cpu(xh->xh_entries[0].xe_name_hash)); 5036 le32_to_cpu(xh->xh_entries[0].xe_name_hash));
4545 return -ENOSPC; 5037 return -ENOSPC;
4546 } 5038 }
@@ -4550,16 +5042,16 @@ static int ocfs2_check_xattr_bucket_collision(struct inode *inode,
4550 5042
4551static int ocfs2_xattr_set_entry_index_block(struct inode *inode, 5043static int ocfs2_xattr_set_entry_index_block(struct inode *inode,
4552 struct ocfs2_xattr_info *xi, 5044 struct ocfs2_xattr_info *xi,
4553 struct ocfs2_xattr_search *xs) 5045 struct ocfs2_xattr_search *xs,
5046 struct ocfs2_xattr_set_ctxt *ctxt)
4554{ 5047{
4555 struct ocfs2_xattr_header *xh; 5048 struct ocfs2_xattr_header *xh;
4556 struct ocfs2_xattr_entry *xe; 5049 struct ocfs2_xattr_entry *xe;
4557 u16 count, header_size, xh_free_start; 5050 u16 count, header_size, xh_free_start;
4558 int i, free, max_free, need, old; 5051 int free, max_free, need, old;
4559 size_t value_size = 0, name_len = strlen(xi->name); 5052 size_t value_size = 0, name_len = strlen(xi->name);
4560 size_t blocksize = inode->i_sb->s_blocksize; 5053 size_t blocksize = inode->i_sb->s_blocksize;
4561 int ret, allocation = 0; 5054 int ret, allocation = 0;
4562 u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
4563 5055
4564 mlog_entry("Set xattr %s in xattr index block\n", xi->name); 5056 mlog_entry("Set xattr %s in xattr index block\n", xi->name);
4565 5057
@@ -4574,7 +5066,7 @@ try_again:
4574 5066
4575 mlog_bug_on_msg(header_size > blocksize, "bucket %llu has header size " 5067 mlog_bug_on_msg(header_size > blocksize, "bucket %llu has header size "
4576 "of %u which exceed block size\n", 5068 "of %u which exceed block size\n",
4577 (unsigned long long)xs->bucket.bhs[0]->b_blocknr, 5069 (unsigned long long)bucket_blkno(xs->bucket),
4578 header_size); 5070 header_size);
4579 5071
4580 if (xi->value && xi->value_len > OCFS2_XATTR_INLINE_SIZE) 5072 if (xi->value && xi->value_len > OCFS2_XATTR_INLINE_SIZE)
@@ -4614,11 +5106,13 @@ try_again:
4614 mlog(0, "xs->not_found = %d, in xattr bucket %llu: free = %d, " 5106 mlog(0, "xs->not_found = %d, in xattr bucket %llu: free = %d, "
4615 "need = %d, max_free = %d, xh_free_start = %u, xh_name_value_len =" 5107 "need = %d, max_free = %d, xh_free_start = %u, xh_name_value_len ="
4616 " %u\n", xs->not_found, 5108 " %u\n", xs->not_found,
4617 (unsigned long long)xs->bucket.bhs[0]->b_blocknr, 5109 (unsigned long long)bucket_blkno(xs->bucket),
4618 free, need, max_free, le16_to_cpu(xh->xh_free_start), 5110 free, need, max_free, le16_to_cpu(xh->xh_free_start),
4619 le16_to_cpu(xh->xh_name_value_len)); 5111 le16_to_cpu(xh->xh_name_value_len));
4620 5112
4621 if (free < need || count == ocfs2_xattr_max_xe_in_bucket(inode->i_sb)) { 5113 if (free < need ||
5114 (xs->not_found &&
5115 count == ocfs2_xattr_max_xe_in_bucket(inode->i_sb))) {
4622 if (need <= max_free && 5116 if (need <= max_free &&
4623 count < ocfs2_xattr_max_xe_in_bucket(inode->i_sb)) { 5117 count < ocfs2_xattr_max_xe_in_bucket(inode->i_sb)) {
4624 /* 5118 /*
@@ -4626,7 +5120,8 @@ try_again:
4626 * name/value will be moved, the xe shouldn't be changed 5120 * name/value will be moved, the xe shouldn't be changed
4627 * in xs. 5121 * in xs.
4628 */ 5122 */
4629 ret = ocfs2_defrag_xattr_bucket(inode, &xs->bucket); 5123 ret = ocfs2_defrag_xattr_bucket(inode, ctxt->handle,
5124 xs->bucket);
4630 if (ret) { 5125 if (ret) {
4631 mlog_errno(ret); 5126 mlog_errno(ret);
4632 goto out; 5127 goto out;
@@ -4658,7 +5153,7 @@ try_again:
4658 * add a new bucket for the insert. 5153 * add a new bucket for the insert.
4659 */ 5154 */
4660 ret = ocfs2_check_xattr_bucket_collision(inode, 5155 ret = ocfs2_check_xattr_bucket_collision(inode,
4661 &xs->bucket, 5156 xs->bucket,
4662 xi->name); 5157 xi->name);
4663 if (ret) { 5158 if (ret) {
4664 mlog_errno(ret); 5159 mlog_errno(ret);
@@ -4667,17 +5162,21 @@ try_again:
4667 5162
4668 ret = ocfs2_add_new_xattr_bucket(inode, 5163 ret = ocfs2_add_new_xattr_bucket(inode,
4669 xs->xattr_bh, 5164 xs->xattr_bh,
4670 xs->bucket.bhs[0]); 5165 xs->bucket,
5166 ctxt);
4671 if (ret) { 5167 if (ret) {
4672 mlog_errno(ret); 5168 mlog_errno(ret);
4673 goto out; 5169 goto out;
4674 } 5170 }
4675 5171
4676 for (i = 0; i < blk_per_bucket; i++) 5172 /*
4677 brelse(xs->bucket.bhs[i]); 5173 * ocfs2_add_new_xattr_bucket() will have updated
4678 5174 * xs->bucket if it moved, but it will not have updated
4679 memset(&xs->bucket, 0, sizeof(xs->bucket)); 5175 * any of the other search fields. Thus, we drop it and
4680 5176 * re-search. Everything should be cached, so it'll be
5177 * quick.
5178 */
5179 ocfs2_xattr_bucket_relse(xs->bucket);
4681 ret = ocfs2_xattr_index_block_find(inode, xs->xattr_bh, 5180 ret = ocfs2_xattr_index_block_find(inode, xs->xattr_bh,
4682 xi->name_index, 5181 xi->name_index,
4683 xi->name, xs); 5182 xi->name, xs);
@@ -4689,7 +5188,7 @@ try_again:
4689 } 5188 }
4690 5189
4691xattr_set: 5190xattr_set:
4692 ret = ocfs2_xattr_set_in_bucket(inode, xi, xs); 5191 ret = ocfs2_xattr_set_in_bucket(inode, xi, xs, ctxt);
4693out: 5192out:
4694 mlog_exit(ret); 5193 mlog_exit(ret);
4695 return ret; 5194 return ret;
@@ -4700,24 +5199,41 @@ static int ocfs2_delete_xattr_in_bucket(struct inode *inode,
4700 void *para) 5199 void *para)
4701{ 5200{
4702 int ret = 0; 5201 int ret = 0;
4703 struct ocfs2_xattr_header *xh = bucket->xh; 5202 struct ocfs2_xattr_header *xh = bucket_xh(bucket);
4704 u16 i; 5203 u16 i;
4705 struct ocfs2_xattr_entry *xe; 5204 struct ocfs2_xattr_entry *xe;
5205 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
5206 struct ocfs2_xattr_set_ctxt ctxt = {NULL, NULL,};
5207 int credits = ocfs2_remove_extent_credits(osb->sb) +
5208 ocfs2_blocks_per_xattr_bucket(inode->i_sb);
5209
5210
5211 ocfs2_init_dealloc_ctxt(&ctxt.dealloc);
4706 5212
4707 for (i = 0; i < le16_to_cpu(xh->xh_count); i++) { 5213 for (i = 0; i < le16_to_cpu(xh->xh_count); i++) {
4708 xe = &xh->xh_entries[i]; 5214 xe = &xh->xh_entries[i];
4709 if (ocfs2_xattr_is_local(xe)) 5215 if (ocfs2_xattr_is_local(xe))
4710 continue; 5216 continue;
4711 5217
4712 ret = ocfs2_xattr_bucket_value_truncate(inode, 5218 ctxt.handle = ocfs2_start_trans(osb, credits);
4713 bucket->bhs[0], 5219 if (IS_ERR(ctxt.handle)) {
4714 i, 0); 5220 ret = PTR_ERR(ctxt.handle);
5221 mlog_errno(ret);
5222 break;
5223 }
5224
5225 ret = ocfs2_xattr_bucket_value_truncate(inode, bucket,
5226 i, 0, &ctxt);
5227
5228 ocfs2_commit_trans(osb, ctxt.handle);
4715 if (ret) { 5229 if (ret) {
4716 mlog_errno(ret); 5230 mlog_errno(ret);
4717 break; 5231 break;
4718 } 5232 }
4719 } 5233 }
4720 5234
5235 ocfs2_schedule_truncate_log_flush(osb, 1);
5236 ocfs2_run_deallocs(osb, &ctxt.dealloc);
4721 return ret; 5237 return ret;
4722} 5238}
4723 5239
@@ -4768,6 +5284,74 @@ out:
4768} 5284}
4769 5285
4770/* 5286/*
5287 * 'security' attributes support
5288 */
5289static size_t ocfs2_xattr_security_list(struct inode *inode, char *list,
5290 size_t list_size, const char *name,
5291 size_t name_len)
5292{
5293 const size_t prefix_len = XATTR_SECURITY_PREFIX_LEN;
5294 const size_t total_len = prefix_len + name_len + 1;
5295
5296 if (list && total_len <= list_size) {
5297 memcpy(list, XATTR_SECURITY_PREFIX, prefix_len);
5298 memcpy(list + prefix_len, name, name_len);
5299 list[prefix_len + name_len] = '\0';
5300 }
5301 return total_len;
5302}
5303
5304static int ocfs2_xattr_security_get(struct inode *inode, const char *name,
5305 void *buffer, size_t size)
5306{
5307 if (strcmp(name, "") == 0)
5308 return -EINVAL;
5309 return ocfs2_xattr_get(inode, OCFS2_XATTR_INDEX_SECURITY, name,
5310 buffer, size);
5311}
5312
5313static int ocfs2_xattr_security_set(struct inode *inode, const char *name,
5314 const void *value, size_t size, int flags)
5315{
5316 if (strcmp(name, "") == 0)
5317 return -EINVAL;
5318
5319 return ocfs2_xattr_set(inode, OCFS2_XATTR_INDEX_SECURITY, name, value,
5320 size, flags);
5321}
5322
5323int ocfs2_init_security_get(struct inode *inode,
5324 struct inode *dir,
5325 struct ocfs2_security_xattr_info *si)
5326{
5327 /* check whether ocfs2 support feature xattr */
5328 if (!ocfs2_supports_xattr(OCFS2_SB(dir->i_sb)))
5329 return -EOPNOTSUPP;
5330 return security_inode_init_security(inode, dir, &si->name, &si->value,
5331 &si->value_len);
5332}
5333
5334int ocfs2_init_security_set(handle_t *handle,
5335 struct inode *inode,
5336 struct buffer_head *di_bh,
5337 struct ocfs2_security_xattr_info *si,
5338 struct ocfs2_alloc_context *xattr_ac,
5339 struct ocfs2_alloc_context *data_ac)
5340{
5341 return ocfs2_xattr_set_handle(handle, inode, di_bh,
5342 OCFS2_XATTR_INDEX_SECURITY,
5343 si->name, si->value, si->value_len, 0,
5344 xattr_ac, data_ac);
5345}
5346
5347struct xattr_handler ocfs2_xattr_security_handler = {
5348 .prefix = XATTR_SECURITY_PREFIX,
5349 .list = ocfs2_xattr_security_list,
5350 .get = ocfs2_xattr_security_get,
5351 .set = ocfs2_xattr_security_set,
5352};
5353
5354/*
4771 * 'trusted' attributes support 5355 * 'trusted' attributes support
4772 */ 5356 */
4773static size_t ocfs2_xattr_trusted_list(struct inode *inode, char *list, 5357static size_t ocfs2_xattr_trusted_list(struct inode *inode, char *list,
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-08 05:20:20 -0500