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Diffstat (limited to 'fs/ocfs2/localalloc.c')
-rw-r--r--fs/ocfs2/localalloc.c126
1 files changed, 54 insertions, 72 deletions
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
index 1f17a4d08287..698d79a74ef8 100644
--- a/fs/ocfs2/localalloc.c
+++ b/fs/ocfs2/localalloc.c
@@ -58,19 +58,18 @@ static int ocfs2_local_alloc_find_clear_bits(struct ocfs2_super *osb,
58static void ocfs2_clear_local_alloc(struct ocfs2_dinode *alloc); 58static void ocfs2_clear_local_alloc(struct ocfs2_dinode *alloc);
59 59
60static int ocfs2_sync_local_to_main(struct ocfs2_super *osb, 60static int ocfs2_sync_local_to_main(struct ocfs2_super *osb,
61 struct ocfs2_journal_handle *handle, 61 handle_t *handle,
62 struct ocfs2_dinode *alloc, 62 struct ocfs2_dinode *alloc,
63 struct inode *main_bm_inode, 63 struct inode *main_bm_inode,
64 struct buffer_head *main_bm_bh); 64 struct buffer_head *main_bm_bh);
65 65
66static int ocfs2_local_alloc_reserve_for_window(struct ocfs2_super *osb, 66static int ocfs2_local_alloc_reserve_for_window(struct ocfs2_super *osb,
67 struct ocfs2_journal_handle *handle,
68 struct ocfs2_alloc_context **ac, 67 struct ocfs2_alloc_context **ac,
69 struct inode **bitmap_inode, 68 struct inode **bitmap_inode,
70 struct buffer_head **bitmap_bh); 69 struct buffer_head **bitmap_bh);
71 70
72static int ocfs2_local_alloc_new_window(struct ocfs2_super *osb, 71static int ocfs2_local_alloc_new_window(struct ocfs2_super *osb,
73 struct ocfs2_journal_handle *handle, 72 handle_t *handle,
74 struct ocfs2_alloc_context *ac); 73 struct ocfs2_alloc_context *ac);
75 74
76static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb, 75static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb,
@@ -196,7 +195,7 @@ bail:
196void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb) 195void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb)
197{ 196{
198 int status; 197 int status;
199 struct ocfs2_journal_handle *handle = NULL; 198 handle_t *handle;
200 struct inode *local_alloc_inode = NULL; 199 struct inode *local_alloc_inode = NULL;
201 struct buffer_head *bh = NULL; 200 struct buffer_head *bh = NULL;
202 struct buffer_head *main_bm_bh = NULL; 201 struct buffer_head *main_bm_bh = NULL;
@@ -207,7 +206,7 @@ void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb)
207 mlog_entry_void(); 206 mlog_entry_void();
208 207
209 if (osb->local_alloc_state == OCFS2_LA_UNUSED) 208 if (osb->local_alloc_state == OCFS2_LA_UNUSED)
210 goto bail; 209 goto out;
211 210
212 local_alloc_inode = 211 local_alloc_inode =
213 ocfs2_get_system_file_inode(osb, 212 ocfs2_get_system_file_inode(osb,
@@ -216,40 +215,34 @@ void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb)
216 if (!local_alloc_inode) { 215 if (!local_alloc_inode) {
217 status = -ENOENT; 216 status = -ENOENT;
218 mlog_errno(status); 217 mlog_errno(status);
219 goto bail; 218 goto out;
220 } 219 }
221 220
222 osb->local_alloc_state = OCFS2_LA_DISABLED; 221 osb->local_alloc_state = OCFS2_LA_DISABLED;
223 222
224 handle = ocfs2_alloc_handle(osb);
225 if (!handle) {
226 status = -ENOMEM;
227 mlog_errno(status);
228 goto bail;
229 }
230
231 main_bm_inode = ocfs2_get_system_file_inode(osb, 223 main_bm_inode = ocfs2_get_system_file_inode(osb,
232 GLOBAL_BITMAP_SYSTEM_INODE, 224 GLOBAL_BITMAP_SYSTEM_INODE,
233 OCFS2_INVALID_SLOT); 225 OCFS2_INVALID_SLOT);
234 if (!main_bm_inode) { 226 if (!main_bm_inode) {
235 status = -EINVAL; 227 status = -EINVAL;
236 mlog_errno(status); 228 mlog_errno(status);
237 goto bail; 229 goto out;
238 } 230 }
239 231
240 ocfs2_handle_add_inode(handle, main_bm_inode); 232 mutex_lock(&main_bm_inode->i_mutex);
241 status = ocfs2_meta_lock(main_bm_inode, handle, &main_bm_bh, 1); 233
234 status = ocfs2_meta_lock(main_bm_inode, &main_bm_bh, 1);
242 if (status < 0) { 235 if (status < 0) {
243 mlog_errno(status); 236 mlog_errno(status);
244 goto bail; 237 goto out_mutex;
245 } 238 }
246 239
247 /* WINDOW_MOVE_CREDITS is a bit heavy... */ 240 /* WINDOW_MOVE_CREDITS is a bit heavy... */
248 handle = ocfs2_start_trans(osb, handle, OCFS2_WINDOW_MOVE_CREDITS); 241 handle = ocfs2_start_trans(osb, OCFS2_WINDOW_MOVE_CREDITS);
249 if (IS_ERR(handle)) { 242 if (IS_ERR(handle)) {
250 mlog_errno(PTR_ERR(handle)); 243 mlog_errno(PTR_ERR(handle));
251 handle = NULL; 244 handle = NULL;
252 goto bail; 245 goto out_unlock;
253 } 246 }
254 247
255 bh = osb->local_alloc_bh; 248 bh = osb->local_alloc_bh;
@@ -258,7 +251,7 @@ void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb)
258 alloc_copy = kmalloc(bh->b_size, GFP_KERNEL); 251 alloc_copy = kmalloc(bh->b_size, GFP_KERNEL);
259 if (!alloc_copy) { 252 if (!alloc_copy) {
260 status = -ENOMEM; 253 status = -ENOMEM;
261 goto bail; 254 goto out_commit;
262 } 255 }
263 memcpy(alloc_copy, alloc, bh->b_size); 256 memcpy(alloc_copy, alloc, bh->b_size);
264 257
@@ -266,7 +259,7 @@ void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb)
266 OCFS2_JOURNAL_ACCESS_WRITE); 259 OCFS2_JOURNAL_ACCESS_WRITE);
267 if (status < 0) { 260 if (status < 0) {
268 mlog_errno(status); 261 mlog_errno(status);
269 goto bail; 262 goto out_commit;
270 } 263 }
271 264
272 ocfs2_clear_local_alloc(alloc); 265 ocfs2_clear_local_alloc(alloc);
@@ -274,7 +267,7 @@ void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb)
274 status = ocfs2_journal_dirty(handle, bh); 267 status = ocfs2_journal_dirty(handle, bh);
275 if (status < 0) { 268 if (status < 0) {
276 mlog_errno(status); 269 mlog_errno(status);
277 goto bail; 270 goto out_commit;
278 } 271 }
279 272
280 brelse(bh); 273 brelse(bh);
@@ -286,16 +279,20 @@ void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb)
286 if (status < 0) 279 if (status < 0)
287 mlog_errno(status); 280 mlog_errno(status);
288 281
289bail: 282out_commit:
290 if (handle) 283 ocfs2_commit_trans(osb, handle);
291 ocfs2_commit_trans(handle);
292 284
285out_unlock:
293 if (main_bm_bh) 286 if (main_bm_bh)
294 brelse(main_bm_bh); 287 brelse(main_bm_bh);
295 288
296 if (main_bm_inode) 289 ocfs2_meta_unlock(main_bm_inode, 1);
297 iput(main_bm_inode);
298 290
291out_mutex:
292 mutex_unlock(&main_bm_inode->i_mutex);
293 iput(main_bm_inode);
294
295out:
299 if (local_alloc_inode) 296 if (local_alloc_inode)
300 iput(local_alloc_inode); 297 iput(local_alloc_inode);
301 298
@@ -385,61 +382,59 @@ int ocfs2_complete_local_alloc_recovery(struct ocfs2_super *osb,
385 struct ocfs2_dinode *alloc) 382 struct ocfs2_dinode *alloc)
386{ 383{
387 int status; 384 int status;
388 struct ocfs2_journal_handle *handle = NULL; 385 handle_t *handle;
389 struct buffer_head *main_bm_bh = NULL; 386 struct buffer_head *main_bm_bh = NULL;
390 struct inode *main_bm_inode = NULL; 387 struct inode *main_bm_inode;
391 388
392 mlog_entry_void(); 389 mlog_entry_void();
393 390
394 handle = ocfs2_alloc_handle(osb);
395 if (!handle) {
396 status = -ENOMEM;
397 mlog_errno(status);
398 goto bail;
399 }
400
401 main_bm_inode = ocfs2_get_system_file_inode(osb, 391 main_bm_inode = ocfs2_get_system_file_inode(osb,
402 GLOBAL_BITMAP_SYSTEM_INODE, 392 GLOBAL_BITMAP_SYSTEM_INODE,
403 OCFS2_INVALID_SLOT); 393 OCFS2_INVALID_SLOT);
404 if (!main_bm_inode) { 394 if (!main_bm_inode) {
405 status = -EINVAL; 395 status = -EINVAL;
406 mlog_errno(status); 396 mlog_errno(status);
407 goto bail; 397 goto out;
408 } 398 }
409 399
410 ocfs2_handle_add_inode(handle, main_bm_inode); 400 mutex_lock(&main_bm_inode->i_mutex);
411 status = ocfs2_meta_lock(main_bm_inode, handle, &main_bm_bh, 1); 401
402 status = ocfs2_meta_lock(main_bm_inode, &main_bm_bh, 1);
412 if (status < 0) { 403 if (status < 0) {
413 mlog_errno(status); 404 mlog_errno(status);
414 goto bail; 405 goto out_mutex;
415 } 406 }
416 407
417 handle = ocfs2_start_trans(osb, handle, OCFS2_WINDOW_MOVE_CREDITS); 408 handle = ocfs2_start_trans(osb, OCFS2_WINDOW_MOVE_CREDITS);
418 if (IS_ERR(handle)) { 409 if (IS_ERR(handle)) {
419 status = PTR_ERR(handle); 410 status = PTR_ERR(handle);
420 handle = NULL; 411 handle = NULL;
421 mlog_errno(status); 412 mlog_errno(status);
422 goto bail; 413 goto out_unlock;
423 } 414 }
424 415
425 /* we want the bitmap change to be recorded on disk asap */ 416 /* we want the bitmap change to be recorded on disk asap */
426 ocfs2_handle_set_sync(handle, 1); 417 handle->h_sync = 1;
427 418
428 status = ocfs2_sync_local_to_main(osb, handle, alloc, 419 status = ocfs2_sync_local_to_main(osb, handle, alloc,
429 main_bm_inode, main_bm_bh); 420 main_bm_inode, main_bm_bh);
430 if (status < 0) 421 if (status < 0)
431 mlog_errno(status); 422 mlog_errno(status);
432 423
433bail: 424 ocfs2_commit_trans(osb, handle);
434 if (handle) 425
435 ocfs2_commit_trans(handle); 426out_unlock:
427 ocfs2_meta_unlock(main_bm_inode, 1);
428
429out_mutex:
430 mutex_unlock(&main_bm_inode->i_mutex);
436 431
437 if (main_bm_bh) 432 if (main_bm_bh)
438 brelse(main_bm_bh); 433 brelse(main_bm_bh);
439 434
440 if (main_bm_inode) 435 iput(main_bm_inode);
441 iput(main_bm_inode);
442 436
437out:
443 mlog_exit(status); 438 mlog_exit(status);
444 return status; 439 return status;
445} 440}
@@ -452,7 +447,6 @@ bail:
452 * our own in order to shift windows. 447 * our own in order to shift windows.
453 */ 448 */
454int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb, 449int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
455 struct ocfs2_journal_handle *passed_handle,
456 u32 bits_wanted, 450 u32 bits_wanted,
457 struct ocfs2_alloc_context *ac) 451 struct ocfs2_alloc_context *ac)
458{ 452{
@@ -463,9 +457,7 @@ int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
463 457
464 mlog_entry_void(); 458 mlog_entry_void();
465 459
466 BUG_ON(!passed_handle);
467 BUG_ON(!ac); 460 BUG_ON(!ac);
468 BUG_ON(passed_handle->flags & OCFS2_HANDLE_STARTED);
469 461
470 local_alloc_inode = 462 local_alloc_inode =
471 ocfs2_get_system_file_inode(osb, 463 ocfs2_get_system_file_inode(osb,
@@ -476,7 +468,11 @@ int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
476 mlog_errno(status); 468 mlog_errno(status);
477 goto bail; 469 goto bail;
478 } 470 }
479 ocfs2_handle_add_inode(passed_handle, local_alloc_inode); 471
472 mutex_lock(&local_alloc_inode->i_mutex);
473
474 ac->ac_inode = local_alloc_inode;
475 ac->ac_which = OCFS2_AC_USE_LOCAL;
480 476
481 if (osb->local_alloc_state != OCFS2_LA_ENABLED) { 477 if (osb->local_alloc_state != OCFS2_LA_ENABLED) {
482 status = -ENOSPC; 478 status = -ENOSPC;
@@ -515,21 +511,17 @@ int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
515 } 511 }
516 } 512 }
517 513
518 ac->ac_inode = igrab(local_alloc_inode);
519 get_bh(osb->local_alloc_bh); 514 get_bh(osb->local_alloc_bh);
520 ac->ac_bh = osb->local_alloc_bh; 515 ac->ac_bh = osb->local_alloc_bh;
521 ac->ac_which = OCFS2_AC_USE_LOCAL;
522 status = 0; 516 status = 0;
523bail: 517bail:
524 if (local_alloc_inode)
525 iput(local_alloc_inode);
526 518
527 mlog_exit(status); 519 mlog_exit(status);
528 return status; 520 return status;
529} 521}
530 522
531int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb, 523int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
532 struct ocfs2_journal_handle *handle, 524 handle_t *handle,
533 struct ocfs2_alloc_context *ac, 525 struct ocfs2_alloc_context *ac,
534 u32 min_bits, 526 u32 min_bits,
535 u32 *bit_off, 527 u32 *bit_off,
@@ -707,7 +699,7 @@ static void ocfs2_verify_zero_bits(unsigned long *bitmap,
707 * passed is used for caching. 699 * passed is used for caching.
708 */ 700 */
709static int ocfs2_sync_local_to_main(struct ocfs2_super *osb, 701static int ocfs2_sync_local_to_main(struct ocfs2_super *osb,
710 struct ocfs2_journal_handle *handle, 702 handle_t *handle,
711 struct ocfs2_dinode *alloc, 703 struct ocfs2_dinode *alloc,
712 struct inode *main_bm_inode, 704 struct inode *main_bm_inode,
713 struct buffer_head *main_bm_bh) 705 struct buffer_head *main_bm_bh)
@@ -778,7 +770,6 @@ bail:
778} 770}
779 771
780static int ocfs2_local_alloc_reserve_for_window(struct ocfs2_super *osb, 772static int ocfs2_local_alloc_reserve_for_window(struct ocfs2_super *osb,
781 struct ocfs2_journal_handle *handle,
782 struct ocfs2_alloc_context **ac, 773 struct ocfs2_alloc_context **ac,
783 struct inode **bitmap_inode, 774 struct inode **bitmap_inode,
784 struct buffer_head **bitmap_bh) 775 struct buffer_head **bitmap_bh)
@@ -792,7 +783,6 @@ static int ocfs2_local_alloc_reserve_for_window(struct ocfs2_super *osb,
792 goto bail; 783 goto bail;
793 } 784 }
794 785
795 (*ac)->ac_handle = handle;
796 (*ac)->ac_bits_wanted = ocfs2_local_alloc_window_bits(osb); 786 (*ac)->ac_bits_wanted = ocfs2_local_alloc_window_bits(osb);
797 787
798 status = ocfs2_reserve_cluster_bitmap_bits(osb, *ac); 788 status = ocfs2_reserve_cluster_bitmap_bits(osb, *ac);
@@ -821,7 +811,7 @@ bail:
821 * pass it the bitmap lock in lock_bh if you have it. 811 * pass it the bitmap lock in lock_bh if you have it.
822 */ 812 */
823static int ocfs2_local_alloc_new_window(struct ocfs2_super *osb, 813static int ocfs2_local_alloc_new_window(struct ocfs2_super *osb,
824 struct ocfs2_journal_handle *handle, 814 handle_t *handle,
825 struct ocfs2_alloc_context *ac) 815 struct ocfs2_alloc_context *ac)
826{ 816{
827 int status = 0; 817 int status = 0;
@@ -888,23 +878,15 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb,
888 int status = 0; 878 int status = 0;
889 struct buffer_head *main_bm_bh = NULL; 879 struct buffer_head *main_bm_bh = NULL;
890 struct inode *main_bm_inode = NULL; 880 struct inode *main_bm_inode = NULL;
891 struct ocfs2_journal_handle *handle = NULL; 881 handle_t *handle = NULL;
892 struct ocfs2_dinode *alloc; 882 struct ocfs2_dinode *alloc;
893 struct ocfs2_dinode *alloc_copy = NULL; 883 struct ocfs2_dinode *alloc_copy = NULL;
894 struct ocfs2_alloc_context *ac = NULL; 884 struct ocfs2_alloc_context *ac = NULL;
895 885
896 mlog_entry_void(); 886 mlog_entry_void();
897 887
898 handle = ocfs2_alloc_handle(osb);
899 if (!handle) {
900 status = -ENOMEM;
901 mlog_errno(status);
902 goto bail;
903 }
904
905 /* This will lock the main bitmap for us. */ 888 /* This will lock the main bitmap for us. */
906 status = ocfs2_local_alloc_reserve_for_window(osb, 889 status = ocfs2_local_alloc_reserve_for_window(osb,
907 handle,
908 &ac, 890 &ac,
909 &main_bm_inode, 891 &main_bm_inode,
910 &main_bm_bh); 892 &main_bm_bh);
@@ -914,7 +896,7 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb,
914 goto bail; 896 goto bail;
915 } 897 }
916 898
917 handle = ocfs2_start_trans(osb, handle, OCFS2_WINDOW_MOVE_CREDITS); 899 handle = ocfs2_start_trans(osb, OCFS2_WINDOW_MOVE_CREDITS);
918 if (IS_ERR(handle)) { 900 if (IS_ERR(handle)) {
919 status = PTR_ERR(handle); 901 status = PTR_ERR(handle);
920 handle = NULL; 902 handle = NULL;
@@ -972,7 +954,7 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb,
972 status = 0; 954 status = 0;
973bail: 955bail:
974 if (handle) 956 if (handle)
975 ocfs2_commit_trans(handle); 957 ocfs2_commit_trans(osb, handle);
976 958
977 if (main_bm_bh) 959 if (main_bm_bh)
978 brelse(main_bm_bh); 960 brelse(main_bm_bh);