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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Nathan Scott7b718762005-11-02 14:58:39 +11002 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 *
Nathan Scott7b718762005-11-02 14:58:39 +11005 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 * published by the Free Software Foundation.
8 *
Nathan Scott7b718762005-11-02 14:58:39 +11009 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 *
Nathan Scott7b718762005-11-02 14:58:39 +110014 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include "xfs.h"
Nathan Scotta844f452005-11-02 14:38:42 +110019#include "xfs_fs.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070020#include "xfs_types.h"
Nathan Scotta844f452005-11-02 14:38:42 +110021#include "xfs_bit.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070022#include "xfs_log.h"
Nathan Scotta844f452005-11-02 14:38:42 +110023#include "xfs_inum.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070024#include "xfs_trans.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070025#include "xfs_sb.h"
David Chinnerda353b02007-08-28 14:00:13 +100026#include "xfs_ag.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070027#include "xfs_dmapi.h"
28#include "xfs_mount.h"
Nathan Scotta844f452005-11-02 14:38:42 +110029#include "xfs_buf_item.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#include "xfs_trans_priv.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070031#include "xfs_error.h"
32
33
34kmem_zone_t *xfs_buf_item_zone;
35
36#ifdef XFS_TRANS_DEBUG
37/*
38 * This function uses an alternate strategy for tracking the bytes
39 * that the user requests to be logged. This can then be used
40 * in conjunction with the bli_orig array in the buf log item to
41 * catch bugs in our callers' code.
42 *
43 * We also double check the bits set in xfs_buf_item_log using a
44 * simple algorithm to check that every byte is accounted for.
45 */
46STATIC void
47xfs_buf_item_log_debug(
48 xfs_buf_log_item_t *bip,
49 uint first,
50 uint last)
51{
52 uint x;
53 uint byte;
54 uint nbytes;
55 uint chunk_num;
56 uint word_num;
57 uint bit_num;
58 uint bit_set;
59 uint *wordp;
60
61 ASSERT(bip->bli_logged != NULL);
62 byte = first;
63 nbytes = last - first + 1;
64 bfset(bip->bli_logged, first, nbytes);
65 for (x = 0; x < nbytes; x++) {
66 chunk_num = byte >> XFS_BLI_SHIFT;
67 word_num = chunk_num >> BIT_TO_WORD_SHIFT;
68 bit_num = chunk_num & (NBWORD - 1);
69 wordp = &(bip->bli_format.blf_data_map[word_num]);
70 bit_set = *wordp & (1 << bit_num);
71 ASSERT(bit_set);
72 byte++;
73 }
74}
75
76/*
77 * This function is called when we flush something into a buffer without
78 * logging it. This happens for things like inodes which are logged
79 * separately from the buffer.
80 */
81void
82xfs_buf_item_flush_log_debug(
83 xfs_buf_t *bp,
84 uint first,
85 uint last)
86{
87 xfs_buf_log_item_t *bip;
88 uint nbytes;
89
90 bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t*);
91 if ((bip == NULL) || (bip->bli_item.li_type != XFS_LI_BUF)) {
92 return;
93 }
94
95 ASSERT(bip->bli_logged != NULL);
96 nbytes = last - first + 1;
97 bfset(bip->bli_logged, first, nbytes);
98}
99
100/*
Nathan Scottc41564b2006-03-29 08:55:14 +1000101 * This function is called to verify that our callers have logged
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102 * all the bytes that they changed.
103 *
104 * It does this by comparing the original copy of the buffer stored in
105 * the buf log item's bli_orig array to the current copy of the buffer
Nathan Scottc41564b2006-03-29 08:55:14 +1000106 * and ensuring that all bytes which mismatch are set in the bli_logged
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107 * array of the buf log item.
108 */
109STATIC void
110xfs_buf_item_log_check(
111 xfs_buf_log_item_t *bip)
112{
113 char *orig;
114 char *buffer;
115 int x;
116 xfs_buf_t *bp;
117
118 ASSERT(bip->bli_orig != NULL);
119 ASSERT(bip->bli_logged != NULL);
120
121 bp = bip->bli_buf;
122 ASSERT(XFS_BUF_COUNT(bp) > 0);
123 ASSERT(XFS_BUF_PTR(bp) != NULL);
124 orig = bip->bli_orig;
125 buffer = XFS_BUF_PTR(bp);
126 for (x = 0; x < XFS_BUF_COUNT(bp); x++) {
127 if (orig[x] != buffer[x] && !btst(bip->bli_logged, x))
128 cmn_err(CE_PANIC,
129 "xfs_buf_item_log_check bip %x buffer %x orig %x index %d",
130 bip, bp, orig, x);
131 }
132}
133#else
134#define xfs_buf_item_log_debug(x,y,z)
135#define xfs_buf_item_log_check(x)
136#endif
137
138STATIC void xfs_buf_error_relse(xfs_buf_t *bp);
139STATIC void xfs_buf_do_callbacks(xfs_buf_t *bp, xfs_log_item_t *lip);
140
141/*
142 * This returns the number of log iovecs needed to log the
143 * given buf log item.
144 *
145 * It calculates this as 1 iovec for the buf log format structure
146 * and 1 for each stretch of non-contiguous chunks to be logged.
147 * Contiguous chunks are logged in a single iovec.
148 *
149 * If the XFS_BLI_STALE flag has been set, then log nothing.
150 */
Christoph Hellwigba0f32d2005-06-21 15:36:52 +1000151STATIC uint
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152xfs_buf_item_size(
153 xfs_buf_log_item_t *bip)
154{
155 uint nvecs;
156 int next_bit;
157 int last_bit;
158 xfs_buf_t *bp;
159
160 ASSERT(atomic_read(&bip->bli_refcount) > 0);
161 if (bip->bli_flags & XFS_BLI_STALE) {
162 /*
163 * The buffer is stale, so all we need to log
164 * is the buf log format structure with the
165 * cancel flag in it.
166 */
167 xfs_buf_item_trace("SIZE STALE", bip);
168 ASSERT(bip->bli_format.blf_flags & XFS_BLI_CANCEL);
169 return 1;
170 }
171
172 bp = bip->bli_buf;
173 ASSERT(bip->bli_flags & XFS_BLI_LOGGED);
174 nvecs = 1;
175 last_bit = xfs_next_bit(bip->bli_format.blf_data_map,
176 bip->bli_format.blf_map_size, 0);
177 ASSERT(last_bit != -1);
178 nvecs++;
179 while (last_bit != -1) {
180 /*
181 * This takes the bit number to start looking from and
182 * returns the next set bit from there. It returns -1
183 * if there are no more bits set or the start bit is
184 * beyond the end of the bitmap.
185 */
186 next_bit = xfs_next_bit(bip->bli_format.blf_data_map,
187 bip->bli_format.blf_map_size,
188 last_bit + 1);
189 /*
190 * If we run out of bits, leave the loop,
191 * else if we find a new set of bits bump the number of vecs,
192 * else keep scanning the current set of bits.
193 */
194 if (next_bit == -1) {
195 last_bit = -1;
196 } else if (next_bit != last_bit + 1) {
197 last_bit = next_bit;
198 nvecs++;
199 } else if (xfs_buf_offset(bp, next_bit * XFS_BLI_CHUNK) !=
200 (xfs_buf_offset(bp, last_bit * XFS_BLI_CHUNK) +
201 XFS_BLI_CHUNK)) {
202 last_bit = next_bit;
203 nvecs++;
204 } else {
205 last_bit++;
206 }
207 }
208
209 xfs_buf_item_trace("SIZE NORM", bip);
210 return nvecs;
211}
212
213/*
214 * This is called to fill in the vector of log iovecs for the
215 * given log buf item. It fills the first entry with a buf log
216 * format structure, and the rest point to contiguous chunks
217 * within the buffer.
218 */
Christoph Hellwigba0f32d2005-06-21 15:36:52 +1000219STATIC void
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220xfs_buf_item_format(
221 xfs_buf_log_item_t *bip,
222 xfs_log_iovec_t *log_vector)
223{
224 uint base_size;
225 uint nvecs;
226 xfs_log_iovec_t *vecp;
227 xfs_buf_t *bp;
228 int first_bit;
229 int last_bit;
230 int next_bit;
231 uint nbits;
232 uint buffer_offset;
233
234 ASSERT(atomic_read(&bip->bli_refcount) > 0);
235 ASSERT((bip->bli_flags & XFS_BLI_LOGGED) ||
236 (bip->bli_flags & XFS_BLI_STALE));
237 bp = bip->bli_buf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238 vecp = log_vector;
239
240 /*
241 * The size of the base structure is the size of the
242 * declared structure plus the space for the extra words
243 * of the bitmap. We subtract one from the map size, because
244 * the first element of the bitmap is accounted for in the
245 * size of the base structure.
246 */
247 base_size =
248 (uint)(sizeof(xfs_buf_log_format_t) +
249 ((bip->bli_format.blf_map_size - 1) * sizeof(uint)));
250 vecp->i_addr = (xfs_caddr_t)&bip->bli_format;
251 vecp->i_len = base_size;
Tim Shimmin7e9c6392005-09-02 16:42:05 +1000252 XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_BFORMAT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253 vecp++;
254 nvecs = 1;
255
256 if (bip->bli_flags & XFS_BLI_STALE) {
257 /*
258 * The buffer is stale, so all we need to log
259 * is the buf log format structure with the
260 * cancel flag in it.
261 */
262 xfs_buf_item_trace("FORMAT STALE", bip);
263 ASSERT(bip->bli_format.blf_flags & XFS_BLI_CANCEL);
264 bip->bli_format.blf_size = nvecs;
265 return;
266 }
267
268 /*
269 * Fill in an iovec for each set of contiguous chunks.
270 */
271 first_bit = xfs_next_bit(bip->bli_format.blf_data_map,
272 bip->bli_format.blf_map_size, 0);
273 ASSERT(first_bit != -1);
274 last_bit = first_bit;
275 nbits = 1;
276 for (;;) {
277 /*
278 * This takes the bit number to start looking from and
279 * returns the next set bit from there. It returns -1
280 * if there are no more bits set or the start bit is
281 * beyond the end of the bitmap.
282 */
283 next_bit = xfs_next_bit(bip->bli_format.blf_data_map,
284 bip->bli_format.blf_map_size,
285 (uint)last_bit + 1);
286 /*
287 * If we run out of bits fill in the last iovec and get
288 * out of the loop.
289 * Else if we start a new set of bits then fill in the
290 * iovec for the series we were looking at and start
291 * counting the bits in the new one.
292 * Else we're still in the same set of bits so just
293 * keep counting and scanning.
294 */
295 if (next_bit == -1) {
296 buffer_offset = first_bit * XFS_BLI_CHUNK;
297 vecp->i_addr = xfs_buf_offset(bp, buffer_offset);
298 vecp->i_len = nbits * XFS_BLI_CHUNK;
Tim Shimmin7e9c6392005-09-02 16:42:05 +1000299 XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_BCHUNK);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300 nvecs++;
301 break;
302 } else if (next_bit != last_bit + 1) {
303 buffer_offset = first_bit * XFS_BLI_CHUNK;
304 vecp->i_addr = xfs_buf_offset(bp, buffer_offset);
305 vecp->i_len = nbits * XFS_BLI_CHUNK;
Tim Shimmin7e9c6392005-09-02 16:42:05 +1000306 XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_BCHUNK);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307 nvecs++;
308 vecp++;
309 first_bit = next_bit;
310 last_bit = next_bit;
311 nbits = 1;
312 } else if (xfs_buf_offset(bp, next_bit << XFS_BLI_SHIFT) !=
313 (xfs_buf_offset(bp, last_bit << XFS_BLI_SHIFT) +
314 XFS_BLI_CHUNK)) {
315 buffer_offset = first_bit * XFS_BLI_CHUNK;
316 vecp->i_addr = xfs_buf_offset(bp, buffer_offset);
317 vecp->i_len = nbits * XFS_BLI_CHUNK;
Tim Shimmin7e9c6392005-09-02 16:42:05 +1000318 XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_BCHUNK);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319/* You would think we need to bump the nvecs here too, but we do not
320 * this number is used by recovery, and it gets confused by the boundary
321 * split here
322 * nvecs++;
323 */
324 vecp++;
325 first_bit = next_bit;
326 last_bit = next_bit;
327 nbits = 1;
328 } else {
329 last_bit++;
330 nbits++;
331 }
332 }
333 bip->bli_format.blf_size = nvecs;
334
335 /*
336 * Check to make sure everything is consistent.
337 */
338 xfs_buf_item_trace("FORMAT NORM", bip);
339 xfs_buf_item_log_check(bip);
340}
341
342/*
343 * This is called to pin the buffer associated with the buf log
344 * item in memory so it cannot be written out. Simply call bpin()
345 * on the buffer to do this.
346 */
Christoph Hellwigba0f32d2005-06-21 15:36:52 +1000347STATIC void
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348xfs_buf_item_pin(
349 xfs_buf_log_item_t *bip)
350{
351 xfs_buf_t *bp;
352
353 bp = bip->bli_buf;
354 ASSERT(XFS_BUF_ISBUSY(bp));
355 ASSERT(atomic_read(&bip->bli_refcount) > 0);
356 ASSERT((bip->bli_flags & XFS_BLI_LOGGED) ||
357 (bip->bli_flags & XFS_BLI_STALE));
358 xfs_buf_item_trace("PIN", bip);
359 xfs_buftrace("XFS_PIN", bp);
360 xfs_bpin(bp);
361}
362
363
364/*
365 * This is called to unpin the buffer associated with the buf log
366 * item which was previously pinned with a call to xfs_buf_item_pin().
367 * Just call bunpin() on the buffer to do this.
368 *
369 * Also drop the reference to the buf item for the current transaction.
370 * If the XFS_BLI_STALE flag is set and we are the last reference,
371 * then free up the buf log item and unlock the buffer.
372 */
Christoph Hellwigba0f32d2005-06-21 15:36:52 +1000373STATIC void
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374xfs_buf_item_unpin(
375 xfs_buf_log_item_t *bip,
376 int stale)
377{
378 xfs_mount_t *mp;
379 xfs_buf_t *bp;
380 int freed;
381 SPLDECL(s);
382
383 bp = bip->bli_buf;
384 ASSERT(bp != NULL);
385 ASSERT(XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *) == bip);
386 ASSERT(atomic_read(&bip->bli_refcount) > 0);
387 xfs_buf_item_trace("UNPIN", bip);
388 xfs_buftrace("XFS_UNPIN", bp);
389
390 freed = atomic_dec_and_test(&bip->bli_refcount);
391 mp = bip->bli_item.li_mountp;
392 xfs_bunpin(bp);
393 if (freed && stale) {
394 ASSERT(bip->bli_flags & XFS_BLI_STALE);
395 ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
396 ASSERT(!(XFS_BUF_ISDELAYWRITE(bp)));
397 ASSERT(XFS_BUF_ISSTALE(bp));
398 ASSERT(bip->bli_format.blf_flags & XFS_BLI_CANCEL);
399 xfs_buf_item_trace("UNPIN STALE", bip);
400 xfs_buftrace("XFS_UNPIN STALE", bp);
401 /*
402 * If we get called here because of an IO error, we may
403 * or may not have the item on the AIL. xfs_trans_delete_ail()
404 * will take care of that situation.
405 * xfs_trans_delete_ail() drops the AIL lock.
406 */
407 if (bip->bli_flags & XFS_BLI_STALE_INODE) {
408 xfs_buf_do_callbacks(bp, (xfs_log_item_t *)bip);
409 XFS_BUF_SET_FSPRIVATE(bp, NULL);
410 XFS_BUF_CLR_IODONE_FUNC(bp);
411 } else {
412 AIL_LOCK(mp,s);
413 xfs_trans_delete_ail(mp, (xfs_log_item_t *)bip, s);
414 xfs_buf_item_relse(bp);
415 ASSERT(XFS_BUF_FSPRIVATE(bp, void *) == NULL);
416 }
417 xfs_buf_relse(bp);
418 }
419}
420
421/*
422 * this is called from uncommit in the forced-shutdown path.
423 * we need to check to see if the reference count on the log item
424 * is going to drop to zero. If so, unpin will free the log item
425 * so we need to free the item's descriptor (that points to the item)
426 * in the transaction.
427 */
Christoph Hellwigba0f32d2005-06-21 15:36:52 +1000428STATIC void
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429xfs_buf_item_unpin_remove(
430 xfs_buf_log_item_t *bip,
431 xfs_trans_t *tp)
432{
433 xfs_buf_t *bp;
434 xfs_log_item_desc_t *lidp;
435 int stale = 0;
436
437 bp = bip->bli_buf;
438 /*
439 * will xfs_buf_item_unpin() call xfs_buf_item_relse()?
440 */
441 if ((atomic_read(&bip->bli_refcount) == 1) &&
442 (bip->bli_flags & XFS_BLI_STALE)) {
443 ASSERT(XFS_BUF_VALUSEMA(bip->bli_buf) <= 0);
444 xfs_buf_item_trace("UNPIN REMOVE", bip);
445 xfs_buftrace("XFS_UNPIN_REMOVE", bp);
446 /*
447 * yes -- clear the xaction descriptor in-use flag
448 * and free the chunk if required. We can safely
449 * do some work here and then call buf_item_unpin
450 * to do the rest because if the if is true, then
451 * we are holding the buffer locked so no one else
452 * will be able to bump up the refcount.
453 */
454 lidp = xfs_trans_find_item(tp, (xfs_log_item_t *) bip);
455 stale = lidp->lid_flags & XFS_LID_BUF_STALE;
456 xfs_trans_free_item(tp, lidp);
457 /*
458 * Since the transaction no longer refers to the buffer,
459 * the buffer should no longer refer to the transaction.
460 */
461 XFS_BUF_SET_FSPRIVATE2(bp, NULL);
462 }
463
464 xfs_buf_item_unpin(bip, stale);
465
466 return;
467}
468
469/*
470 * This is called to attempt to lock the buffer associated with this
471 * buf log item. Don't sleep on the buffer lock. If we can't get
472 * the lock right away, return 0. If we can get the lock, pull the
473 * buffer from the free list, mark it busy, and return 1.
474 */
Christoph Hellwigba0f32d2005-06-21 15:36:52 +1000475STATIC uint
Linus Torvalds1da177e2005-04-16 15:20:36 -0700476xfs_buf_item_trylock(
477 xfs_buf_log_item_t *bip)
478{
479 xfs_buf_t *bp;
480
481 bp = bip->bli_buf;
482
483 if (XFS_BUF_ISPINNED(bp)) {
484 return XFS_ITEM_PINNED;
485 }
486
487 if (!XFS_BUF_CPSEMA(bp)) {
488 return XFS_ITEM_LOCKED;
489 }
490
491 /*
492 * Remove the buffer from the free list. Only do this
493 * if it's on the free list. Private buffers like the
494 * superblock buffer are not.
495 */
496 XFS_BUF_HOLD(bp);
497
498 ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
499 xfs_buf_item_trace("TRYLOCK SUCCESS", bip);
500 return XFS_ITEM_SUCCESS;
501}
502
503/*
504 * Release the buffer associated with the buf log item.
505 * If there is no dirty logged data associated with the
506 * buffer recorded in the buf log item, then free the
507 * buf log item and remove the reference to it in the
508 * buffer.
509 *
510 * This call ignores the recursion count. It is only called
511 * when the buffer should REALLY be unlocked, regardless
512 * of the recursion count.
513 *
514 * If the XFS_BLI_HOLD flag is set in the buf log item, then
515 * free the log item if necessary but do not unlock the buffer.
516 * This is for support of xfs_trans_bhold(). Make sure the
517 * XFS_BLI_HOLD field is cleared if we don't free the item.
518 */
Christoph Hellwigba0f32d2005-06-21 15:36:52 +1000519STATIC void
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520xfs_buf_item_unlock(
521 xfs_buf_log_item_t *bip)
522{
523 int aborted;
524 xfs_buf_t *bp;
525 uint hold;
526
527 bp = bip->bli_buf;
528 xfs_buftrace("XFS_UNLOCK", bp);
529
530 /*
531 * Clear the buffer's association with this transaction.
532 */
533 XFS_BUF_SET_FSPRIVATE2(bp, NULL);
534
535 /*
536 * If this is a transaction abort, don't return early.
537 * Instead, allow the brelse to happen.
538 * Normally it would be done for stale (cancelled) buffers
539 * at unpin time, but we'll never go through the pin/unpin
540 * cycle if we abort inside commit.
541 */
542 aborted = (bip->bli_item.li_flags & XFS_LI_ABORTED) != 0;
543
544 /*
545 * If the buf item is marked stale, then don't do anything.
546 * We'll unlock the buffer and free the buf item when the
547 * buffer is unpinned for the last time.
548 */
549 if (bip->bli_flags & XFS_BLI_STALE) {
550 bip->bli_flags &= ~XFS_BLI_LOGGED;
551 xfs_buf_item_trace("UNLOCK STALE", bip);
552 ASSERT(bip->bli_format.blf_flags & XFS_BLI_CANCEL);
553 if (!aborted)
554 return;
555 }
556
557 /*
558 * Drop the transaction's reference to the log item if
559 * it was not logged as part of the transaction. Otherwise
560 * we'll drop the reference in xfs_buf_item_unpin() when
561 * the transaction is really through with the buffer.
562 */
563 if (!(bip->bli_flags & XFS_BLI_LOGGED)) {
564 atomic_dec(&bip->bli_refcount);
565 } else {
566 /*
567 * Clear the logged flag since this is per
568 * transaction state.
569 */
570 bip->bli_flags &= ~XFS_BLI_LOGGED;
571 }
572
573 /*
574 * Before possibly freeing the buf item, determine if we should
575 * release the buffer at the end of this routine.
576 */
577 hold = bip->bli_flags & XFS_BLI_HOLD;
578 xfs_buf_item_trace("UNLOCK", bip);
579
580 /*
581 * If the buf item isn't tracking any data, free it.
582 * Otherwise, if XFS_BLI_HOLD is set clear it.
583 */
Eric Sandeen24ad33f2007-06-28 16:43:30 +1000584 if (xfs_bitmap_empty(bip->bli_format.blf_data_map,
585 bip->bli_format.blf_map_size)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586 xfs_buf_item_relse(bp);
587 } else if (hold) {
588 bip->bli_flags &= ~XFS_BLI_HOLD;
589 }
590
591 /*
592 * Release the buffer if XFS_BLI_HOLD was not set.
593 */
594 if (!hold) {
595 xfs_buf_relse(bp);
596 }
597}
598
599/*
600 * This is called to find out where the oldest active copy of the
601 * buf log item in the on disk log resides now that the last log
602 * write of it completed at the given lsn.
603 * We always re-log all the dirty data in a buffer, so usually the
604 * latest copy in the on disk log is the only one that matters. For
605 * those cases we simply return the given lsn.
606 *
607 * The one exception to this is for buffers full of newly allocated
608 * inodes. These buffers are only relogged with the XFS_BLI_INODE_BUF
609 * flag set, indicating that only the di_next_unlinked fields from the
610 * inodes in the buffers will be replayed during recovery. If the
611 * original newly allocated inode images have not yet been flushed
612 * when the buffer is so relogged, then we need to make sure that we
613 * keep the old images in the 'active' portion of the log. We do this
614 * by returning the original lsn of that transaction here rather than
615 * the current one.
616 */
Christoph Hellwigba0f32d2005-06-21 15:36:52 +1000617STATIC xfs_lsn_t
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618xfs_buf_item_committed(
619 xfs_buf_log_item_t *bip,
620 xfs_lsn_t lsn)
621{
622 xfs_buf_item_trace("COMMITTED", bip);
623 if ((bip->bli_flags & XFS_BLI_INODE_ALLOC_BUF) &&
624 (bip->bli_item.li_lsn != 0)) {
625 return bip->bli_item.li_lsn;
626 }
627 return (lsn);
628}
629
630/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631 * This is called to asynchronously write the buffer associated with this
632 * buf log item out to disk. The buffer will already have been locked by
633 * a successful call to xfs_buf_item_trylock(). If the buffer still has
634 * B_DELWRI set, then get it going out to disk with a call to bawrite().
635 * If not, then just release the buffer.
636 */
Christoph Hellwigba0f32d2005-06-21 15:36:52 +1000637STATIC void
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638xfs_buf_item_push(
639 xfs_buf_log_item_t *bip)
640{
641 xfs_buf_t *bp;
642
643 ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
644 xfs_buf_item_trace("PUSH", bip);
645
646 bp = bip->bli_buf;
647
648 if (XFS_BUF_ISDELAYWRITE(bp)) {
649 xfs_bawrite(bip->bli_item.li_mountp, bp);
650 } else {
651 xfs_buf_relse(bp);
652 }
653}
654
655/* ARGSUSED */
Christoph Hellwigba0f32d2005-06-21 15:36:52 +1000656STATIC void
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657xfs_buf_item_committing(xfs_buf_log_item_t *bip, xfs_lsn_t commit_lsn)
658{
659}
660
661/*
662 * This is the ops vector shared by all buf log items.
663 */
David Chinner7989cb82007-02-10 18:34:56 +1100664static struct xfs_item_ops xfs_buf_item_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665 .iop_size = (uint(*)(xfs_log_item_t*))xfs_buf_item_size,
666 .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
667 xfs_buf_item_format,
668 .iop_pin = (void(*)(xfs_log_item_t*))xfs_buf_item_pin,
669 .iop_unpin = (void(*)(xfs_log_item_t*, int))xfs_buf_item_unpin,
670 .iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t *))
671 xfs_buf_item_unpin_remove,
672 .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_buf_item_trylock,
673 .iop_unlock = (void(*)(xfs_log_item_t*))xfs_buf_item_unlock,
674 .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
675 xfs_buf_item_committed,
676 .iop_push = (void(*)(xfs_log_item_t*))xfs_buf_item_push,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677 .iop_pushbuf = NULL,
678 .iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
679 xfs_buf_item_committing
680};
681
682
683/*
684 * Allocate a new buf log item to go with the given buffer.
685 * Set the buffer's b_fsprivate field to point to the new
686 * buf log item. If there are other item's attached to the
687 * buffer (see xfs_buf_attach_iodone() below), then put the
688 * buf log item at the front.
689 */
690void
691xfs_buf_item_init(
692 xfs_buf_t *bp,
693 xfs_mount_t *mp)
694{
695 xfs_log_item_t *lip;
696 xfs_buf_log_item_t *bip;
697 int chunks;
698 int map_size;
699
700 /*
701 * Check to see if there is already a buf log item for
702 * this buffer. If there is, it is guaranteed to be
703 * the first. If we do already have one, there is
704 * nothing to do here so return.
705 */
706 if (XFS_BUF_FSPRIVATE3(bp, xfs_mount_t *) != mp)
707 XFS_BUF_SET_FSPRIVATE3(bp, mp);
708 XFS_BUF_SET_BDSTRAT_FUNC(bp, xfs_bdstrat_cb);
709 if (XFS_BUF_FSPRIVATE(bp, void *) != NULL) {
710 lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
711 if (lip->li_type == XFS_LI_BUF) {
712 return;
713 }
714 }
715
716 /*
717 * chunks is the number of XFS_BLI_CHUNK size pieces
718 * the buffer can be divided into. Make sure not to
719 * truncate any pieces. map_size is the size of the
720 * bitmap needed to describe the chunks of the buffer.
721 */
722 chunks = (int)((XFS_BUF_COUNT(bp) + (XFS_BLI_CHUNK - 1)) >> XFS_BLI_SHIFT);
723 map_size = (int)((chunks + NBWORD) >> BIT_TO_WORD_SHIFT);
724
725 bip = (xfs_buf_log_item_t*)kmem_zone_zalloc(xfs_buf_item_zone,
726 KM_SLEEP);
727 bip->bli_item.li_type = XFS_LI_BUF;
728 bip->bli_item.li_ops = &xfs_buf_item_ops;
729 bip->bli_item.li_mountp = mp;
730 bip->bli_buf = bp;
731 bip->bli_format.blf_type = XFS_LI_BUF;
732 bip->bli_format.blf_blkno = (__int64_t)XFS_BUF_ADDR(bp);
733 bip->bli_format.blf_len = (ushort)BTOBB(XFS_BUF_COUNT(bp));
734 bip->bli_format.blf_map_size = map_size;
735#ifdef XFS_BLI_TRACE
736 bip->bli_trace = ktrace_alloc(XFS_BLI_TRACE_SIZE, KM_SLEEP);
737#endif
738
739#ifdef XFS_TRANS_DEBUG
740 /*
741 * Allocate the arrays for tracking what needs to be logged
742 * and what our callers request to be logged. bli_orig
743 * holds a copy of the original, clean buffer for comparison
744 * against, and bli_logged keeps a 1 bit flag per byte in
745 * the buffer to indicate which bytes the callers have asked
746 * to have logged.
747 */
748 bip->bli_orig = (char *)kmem_alloc(XFS_BUF_COUNT(bp), KM_SLEEP);
749 memcpy(bip->bli_orig, XFS_BUF_PTR(bp), XFS_BUF_COUNT(bp));
750 bip->bli_logged = (char *)kmem_zalloc(XFS_BUF_COUNT(bp) / NBBY, KM_SLEEP);
751#endif
752
753 /*
754 * Put the buf item into the list of items attached to the
755 * buffer at the front.
756 */
757 if (XFS_BUF_FSPRIVATE(bp, void *) != NULL) {
758 bip->bli_item.li_bio_list =
759 XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
760 }
761 XFS_BUF_SET_FSPRIVATE(bp, bip);
762}
763
764
765/*
766 * Mark bytes first through last inclusive as dirty in the buf
767 * item's bitmap.
768 */
769void
770xfs_buf_item_log(
771 xfs_buf_log_item_t *bip,
772 uint first,
773 uint last)
774{
775 uint first_bit;
776 uint last_bit;
777 uint bits_to_set;
778 uint bits_set;
779 uint word_num;
780 uint *wordp;
781 uint bit;
782 uint end_bit;
783 uint mask;
784
785 /*
786 * Mark the item as having some dirty data for
787 * quick reference in xfs_buf_item_dirty.
788 */
789 bip->bli_flags |= XFS_BLI_DIRTY;
790
791 /*
792 * Convert byte offsets to bit numbers.
793 */
794 first_bit = first >> XFS_BLI_SHIFT;
795 last_bit = last >> XFS_BLI_SHIFT;
796
797 /*
798 * Calculate the total number of bits to be set.
799 */
800 bits_to_set = last_bit - first_bit + 1;
801
802 /*
803 * Get a pointer to the first word in the bitmap
804 * to set a bit in.
805 */
806 word_num = first_bit >> BIT_TO_WORD_SHIFT;
807 wordp = &(bip->bli_format.blf_data_map[word_num]);
808
809 /*
810 * Calculate the starting bit in the first word.
811 */
812 bit = first_bit & (uint)(NBWORD - 1);
813
814 /*
815 * First set any bits in the first word of our range.
816 * If it starts at bit 0 of the word, it will be
817 * set below rather than here. That is what the variable
818 * bit tells us. The variable bits_set tracks the number
819 * of bits that have been set so far. End_bit is the number
820 * of the last bit to be set in this word plus one.
821 */
822 if (bit) {
823 end_bit = MIN(bit + bits_to_set, (uint)NBWORD);
824 mask = ((1 << (end_bit - bit)) - 1) << bit;
825 *wordp |= mask;
826 wordp++;
827 bits_set = end_bit - bit;
828 } else {
829 bits_set = 0;
830 }
831
832 /*
833 * Now set bits a whole word at a time that are between
834 * first_bit and last_bit.
835 */
836 while ((bits_to_set - bits_set) >= NBWORD) {
837 *wordp |= 0xffffffff;
838 bits_set += NBWORD;
839 wordp++;
840 }
841
842 /*
843 * Finally, set any bits left to be set in one last partial word.
844 */
845 end_bit = bits_to_set - bits_set;
846 if (end_bit) {
847 mask = (1 << end_bit) - 1;
848 *wordp |= mask;
849 }
850
851 xfs_buf_item_log_debug(bip, first, last);
852}
853
854
855/*
856 * Return 1 if the buffer has some data that has been logged (at any
857 * point, not just the current transaction) and 0 if not.
858 */
859uint
860xfs_buf_item_dirty(
861 xfs_buf_log_item_t *bip)
862{
863 return (bip->bli_flags & XFS_BLI_DIRTY);
864}
865
866/*
867 * This is called when the buf log item is no longer needed. It should
868 * free the buf log item associated with the given buffer and clear
869 * the buffer's pointer to the buf log item. If there are no more
870 * items in the list, clear the b_iodone field of the buffer (see
871 * xfs_buf_attach_iodone() below).
872 */
873void
874xfs_buf_item_relse(
875 xfs_buf_t *bp)
876{
877 xfs_buf_log_item_t *bip;
878
879 xfs_buftrace("XFS_RELSE", bp);
880 bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t*);
881 XFS_BUF_SET_FSPRIVATE(bp, bip->bli_item.li_bio_list);
882 if ((XFS_BUF_FSPRIVATE(bp, void *) == NULL) &&
883 (XFS_BUF_IODONE_FUNC(bp) != NULL)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700884 XFS_BUF_CLR_IODONE_FUNC(bp);
885 }
886
887#ifdef XFS_TRANS_DEBUG
888 kmem_free(bip->bli_orig, XFS_BUF_COUNT(bp));
889 bip->bli_orig = NULL;
890 kmem_free(bip->bli_logged, XFS_BUF_COUNT(bp) / NBBY);
891 bip->bli_logged = NULL;
892#endif /* XFS_TRANS_DEBUG */
893
894#ifdef XFS_BLI_TRACE
895 ktrace_free(bip->bli_trace);
896#endif
897 kmem_zone_free(xfs_buf_item_zone, bip);
898}
899
900
901/*
902 * Add the given log item with its callback to the list of callbacks
903 * to be called when the buffer's I/O completes. If it is not set
904 * already, set the buffer's b_iodone() routine to be
905 * xfs_buf_iodone_callbacks() and link the log item into the list of
906 * items rooted at b_fsprivate. Items are always added as the second
907 * entry in the list if there is a first, because the buf item code
908 * assumes that the buf log item is first.
909 */
910void
911xfs_buf_attach_iodone(
912 xfs_buf_t *bp,
913 void (*cb)(xfs_buf_t *, xfs_log_item_t *),
914 xfs_log_item_t *lip)
915{
916 xfs_log_item_t *head_lip;
917
918 ASSERT(XFS_BUF_ISBUSY(bp));
919 ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
920
921 lip->li_cb = cb;
922 if (XFS_BUF_FSPRIVATE(bp, void *) != NULL) {
923 head_lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
924 lip->li_bio_list = head_lip->li_bio_list;
925 head_lip->li_bio_list = lip;
926 } else {
927 XFS_BUF_SET_FSPRIVATE(bp, lip);
928 }
929
930 ASSERT((XFS_BUF_IODONE_FUNC(bp) == xfs_buf_iodone_callbacks) ||
931 (XFS_BUF_IODONE_FUNC(bp) == NULL));
932 XFS_BUF_SET_IODONE_FUNC(bp, xfs_buf_iodone_callbacks);
933}
934
935STATIC void
936xfs_buf_do_callbacks(
937 xfs_buf_t *bp,
938 xfs_log_item_t *lip)
939{
940 xfs_log_item_t *nlip;
941
942 while (lip != NULL) {
943 nlip = lip->li_bio_list;
944 ASSERT(lip->li_cb != NULL);
945 /*
946 * Clear the next pointer so we don't have any
947 * confusion if the item is added to another buf.
948 * Don't touch the log item after calling its
949 * callback, because it could have freed itself.
950 */
951 lip->li_bio_list = NULL;
952 lip->li_cb(bp, lip);
953 lip = nlip;
954 }
955}
956
957/*
958 * This is the iodone() function for buffers which have had callbacks
959 * attached to them by xfs_buf_attach_iodone(). It should remove each
960 * log item from the buffer's list and call the callback of each in turn.
961 * When done, the buffer's fsprivate field is set to NULL and the buffer
962 * is unlocked with a call to iodone().
963 */
964void
965xfs_buf_iodone_callbacks(
966 xfs_buf_t *bp)
967{
968 xfs_log_item_t *lip;
969 static ulong lasttime;
970 static xfs_buftarg_t *lasttarg;
971 xfs_mount_t *mp;
972
973 ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
974 lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
975
976 if (XFS_BUF_GETERROR(bp) != 0) {
977 /*
978 * If we've already decided to shutdown the filesystem
979 * because of IO errors, there's no point in giving this
980 * a retry.
981 */
982 mp = lip->li_mountp;
983 if (XFS_FORCED_SHUTDOWN(mp)) {
984 ASSERT(XFS_BUF_TARGET(bp) == mp->m_ddev_targp);
985 XFS_BUF_SUPER_STALE(bp);
986 xfs_buftrace("BUF_IODONE_CB", bp);
987 xfs_buf_do_callbacks(bp, lip);
988 XFS_BUF_SET_FSPRIVATE(bp, NULL);
989 XFS_BUF_CLR_IODONE_FUNC(bp);
990
991 /*
992 * XFS_SHUT flag gets set when we go thru the
993 * entire buffer cache and deliberately start
994 * throwing away delayed write buffers.
995 * Since there's no biowait done on those,
996 * we should just brelse them.
997 */
998 if (XFS_BUF_ISSHUT(bp)) {
999 XFS_BUF_UNSHUT(bp);
1000 xfs_buf_relse(bp);
1001 } else {
1002 xfs_biodone(bp);
1003 }
1004
1005 return;
1006 }
1007
1008 if ((XFS_BUF_TARGET(bp) != lasttarg) ||
1009 (time_after(jiffies, (lasttime + 5*HZ)))) {
1010 lasttime = jiffies;
Nathan Scottb6574522006-06-09 15:29:40 +10001011 cmn_err(CE_ALERT, "Device %s, XFS metadata write error"
1012 " block 0x%llx in %s",
1013 XFS_BUFTARG_NAME(XFS_BUF_TARGET(bp)),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014 (__uint64_t)XFS_BUF_ADDR(bp), mp->m_fsname);
1015 }
1016 lasttarg = XFS_BUF_TARGET(bp);
1017
1018 if (XFS_BUF_ISASYNC(bp)) {
1019 /*
1020 * If the write was asynchronous then noone will be
1021 * looking for the error. Clear the error state
1022 * and write the buffer out again delayed write.
1023 *
1024 * XXXsup This is OK, so long as we catch these
1025 * before we start the umount; we don't want these
1026 * DELWRI metadata bufs to be hanging around.
1027 */
1028 XFS_BUF_ERROR(bp,0); /* errno of 0 unsets the flag */
1029
1030 if (!(XFS_BUF_ISSTALE(bp))) {
1031 XFS_BUF_DELAYWRITE(bp);
1032 XFS_BUF_DONE(bp);
1033 XFS_BUF_SET_START(bp);
1034 }
1035 ASSERT(XFS_BUF_IODONE_FUNC(bp));
1036 xfs_buftrace("BUF_IODONE ASYNC", bp);
1037 xfs_buf_relse(bp);
1038 } else {
1039 /*
1040 * If the write of the buffer was not asynchronous,
1041 * then we want to make sure to return the error
1042 * to the caller of bwrite(). Because of this we
1043 * cannot clear the B_ERROR state at this point.
1044 * Instead we install a callback function that
1045 * will be called when the buffer is released, and
1046 * that routine will clear the error state and
1047 * set the buffer to be written out again after
1048 * some delay.
1049 */
1050 /* We actually overwrite the existing b-relse
1051 function at times, but we're gonna be shutting down
1052 anyway. */
1053 XFS_BUF_SET_BRELSE_FUNC(bp,xfs_buf_error_relse);
1054 XFS_BUF_DONE(bp);
1055 XFS_BUF_V_IODONESEMA(bp);
1056 }
1057 return;
1058 }
1059#ifdef XFSERRORDEBUG
1060 xfs_buftrace("XFS BUFCB NOERR", bp);
1061#endif
1062 xfs_buf_do_callbacks(bp, lip);
1063 XFS_BUF_SET_FSPRIVATE(bp, NULL);
1064 XFS_BUF_CLR_IODONE_FUNC(bp);
1065 xfs_biodone(bp);
1066}
1067
1068/*
1069 * This is a callback routine attached to a buffer which gets an error
1070 * when being written out synchronously.
1071 */
1072STATIC void
1073xfs_buf_error_relse(
1074 xfs_buf_t *bp)
1075{
1076 xfs_log_item_t *lip;
1077 xfs_mount_t *mp;
1078
1079 lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
1080 mp = (xfs_mount_t *)lip->li_mountp;
1081 ASSERT(XFS_BUF_TARGET(bp) == mp->m_ddev_targp);
1082
1083 XFS_BUF_STALE(bp);
1084 XFS_BUF_DONE(bp);
1085 XFS_BUF_UNDELAYWRITE(bp);
1086 XFS_BUF_ERROR(bp,0);
1087 xfs_buftrace("BUF_ERROR_RELSE", bp);
1088 if (! XFS_FORCED_SHUTDOWN(mp))
Nathan Scott7d04a332006-06-09 14:58:38 +10001089 xfs_force_shutdown(mp, SHUTDOWN_META_IO_ERROR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090 /*
1091 * We have to unpin the pinned buffers so do the
1092 * callbacks.
1093 */
1094 xfs_buf_do_callbacks(bp, lip);
1095 XFS_BUF_SET_FSPRIVATE(bp, NULL);
1096 XFS_BUF_CLR_IODONE_FUNC(bp);
1097 XFS_BUF_SET_BRELSE_FUNC(bp,NULL);
1098 xfs_buf_relse(bp);
1099}
1100
1101
1102/*
1103 * This is the iodone() function for buffers which have been
1104 * logged. It is called when they are eventually flushed out.
1105 * It should remove the buf item from the AIL, and free the buf item.
1106 * It is called by xfs_buf_iodone_callbacks() above which will take
1107 * care of cleaning up the buffer itself.
1108 */
1109/* ARGSUSED */
1110void
1111xfs_buf_iodone(
1112 xfs_buf_t *bp,
1113 xfs_buf_log_item_t *bip)
1114{
1115 struct xfs_mount *mp;
1116 SPLDECL(s);
1117
1118 ASSERT(bip->bli_buf == bp);
1119
1120 mp = bip->bli_item.li_mountp;
1121
1122 /*
1123 * If we are forcibly shutting down, this may well be
1124 * off the AIL already. That's because we simulate the
1125 * log-committed callbacks to unpin these buffers. Or we may never
1126 * have put this item on AIL because of the transaction was
1127 * aborted forcibly. xfs_trans_delete_ail() takes care of these.
1128 *
1129 * Either way, AIL is useless if we're forcing a shutdown.
1130 */
1131 AIL_LOCK(mp,s);
1132 /*
1133 * xfs_trans_delete_ail() drops the AIL lock.
1134 */
1135 xfs_trans_delete_ail(mp, (xfs_log_item_t *)bip, s);
1136
1137#ifdef XFS_TRANS_DEBUG
1138 kmem_free(bip->bli_orig, XFS_BUF_COUNT(bp));
1139 bip->bli_orig = NULL;
1140 kmem_free(bip->bli_logged, XFS_BUF_COUNT(bp) / NBBY);
1141 bip->bli_logged = NULL;
1142#endif /* XFS_TRANS_DEBUG */
1143
1144#ifdef XFS_BLI_TRACE
1145 ktrace_free(bip->bli_trace);
1146#endif
1147 kmem_zone_free(xfs_buf_item_zone, bip);
1148}
1149
1150#if defined(XFS_BLI_TRACE)
1151void
1152xfs_buf_item_trace(
1153 char *id,
1154 xfs_buf_log_item_t *bip)
1155{
1156 xfs_buf_t *bp;
1157 ASSERT(bip->bli_trace != NULL);
1158
1159 bp = bip->bli_buf;
1160 ktrace_enter(bip->bli_trace,
1161 (void *)id,
1162 (void *)bip->bli_buf,
1163 (void *)((unsigned long)bip->bli_flags),
1164 (void *)((unsigned long)bip->bli_recur),
1165 (void *)((unsigned long)atomic_read(&bip->bli_refcount)),
1166 (void *)((unsigned long)
1167 (0xFFFFFFFF & XFS_BUF_ADDR(bp) >> 32)),
1168 (void *)((unsigned long)(0xFFFFFFFF & XFS_BUF_ADDR(bp))),
1169 (void *)((unsigned long)XFS_BUF_COUNT(bp)),
1170 (void *)((unsigned long)XFS_BUF_BFLAGS(bp)),
1171 XFS_BUF_FSPRIVATE(bp, void *),
1172 XFS_BUF_FSPRIVATE2(bp, void *),
1173 (void *)(unsigned long)XFS_BUF_ISPINNED(bp),
1174 (void *)XFS_BUF_IODONE_FUNC(bp),
1175 (void *)((unsigned long)(XFS_BUF_VALUSEMA(bp))),
1176 (void *)bip->bli_item.li_desc,
1177 (void *)((unsigned long)bip->bli_item.li_flags));
1178}
1179#endif /* XFS_BLI_TRACE */