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-rw-r--r--fs/xfs/xfs_iomap.c426
1 files changed, 234 insertions, 192 deletions
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 45a77a3a6c07..788917f355c4 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -40,7 +40,6 @@
40#include "xfs_ialloc.h" 40#include "xfs_ialloc.h"
41#include "xfs_btree.h" 41#include "xfs_btree.h"
42#include "xfs_bmap.h" 42#include "xfs_bmap.h"
43#include "xfs_bit.h"
44#include "xfs_rtalloc.h" 43#include "xfs_rtalloc.h"
45#include "xfs_error.h" 44#include "xfs_error.h"
46#include "xfs_itable.h" 45#include "xfs_itable.h"
@@ -263,7 +262,7 @@ phase2:
263 case BMAPI_WRITE: 262 case BMAPI_WRITE:
264 /* If we found an extent, return it */ 263 /* If we found an extent, return it */
265 if (nimaps && 264 if (nimaps &&
266 (imap.br_startblock != HOLESTARTBLOCK) && 265 (imap.br_startblock != HOLESTARTBLOCK) &&
267 (imap.br_startblock != DELAYSTARTBLOCK)) { 266 (imap.br_startblock != DELAYSTARTBLOCK)) {
268 xfs_iomap_map_trace(XFS_IOMAP_WRITE_MAP, io, 267 xfs_iomap_map_trace(XFS_IOMAP_WRITE_MAP, io,
269 offset, count, iomapp, &imap, flags); 268 offset, count, iomapp, &imap, flags);
@@ -318,6 +317,58 @@ out:
318} 317}
319 318
320STATIC int 319STATIC int
320xfs_iomap_eof_align_last_fsb(
321 xfs_mount_t *mp,
322 xfs_iocore_t *io,
323 xfs_fsize_t isize,
324 xfs_extlen_t extsize,
325 xfs_fileoff_t *last_fsb)
326{
327 xfs_fileoff_t new_last_fsb = 0;
328 xfs_extlen_t align;
329 int eof, error;
330
331 if (io->io_flags & XFS_IOCORE_RT)
332 ;
333 /*
334 * If mounted with the "-o swalloc" option, roundup the allocation
335 * request to a stripe width boundary if the file size is >=
336 * stripe width and we are allocating past the allocation eof.
337 */
338 else if (mp->m_swidth && (mp->m_flags & XFS_MOUNT_SWALLOC) &&
339 (isize >= XFS_FSB_TO_B(mp, mp->m_swidth)))
340 new_last_fsb = roundup_64(*last_fsb, mp->m_swidth);
341 /*
342 * Roundup the allocation request to a stripe unit (m_dalign) boundary
343 * if the file size is >= stripe unit size, and we are allocating past
344 * the allocation eof.
345 */
346 else if (mp->m_dalign && (isize >= XFS_FSB_TO_B(mp, mp->m_dalign)))
347 new_last_fsb = roundup_64(*last_fsb, mp->m_dalign);
348
349 /*
350 * Always round up the allocation request to an extent boundary
351 * (when file on a real-time subvolume or has di_extsize hint).
352 */
353 if (extsize) {
354 if (new_last_fsb)
355 align = roundup_64(new_last_fsb, extsize);
356 else
357 align = extsize;
358 new_last_fsb = roundup_64(*last_fsb, align);
359 }
360
361 if (new_last_fsb) {
362 error = XFS_BMAP_EOF(mp, io, new_last_fsb, XFS_DATA_FORK, &eof);
363 if (error)
364 return error;
365 if (eof)
366 *last_fsb = new_last_fsb;
367 }
368 return 0;
369}
370
371STATIC int
321xfs_flush_space( 372xfs_flush_space(
322 xfs_inode_t *ip, 373 xfs_inode_t *ip,
323 int *fsynced, 374 int *fsynced,
@@ -363,19 +414,20 @@ xfs_iomap_write_direct(
363 xfs_iocore_t *io = &ip->i_iocore; 414 xfs_iocore_t *io = &ip->i_iocore;
364 xfs_fileoff_t offset_fsb; 415 xfs_fileoff_t offset_fsb;
365 xfs_fileoff_t last_fsb; 416 xfs_fileoff_t last_fsb;
366 xfs_filblks_t count_fsb; 417 xfs_filblks_t count_fsb, resaligned;
367 xfs_fsblock_t firstfsb; 418 xfs_fsblock_t firstfsb;
419 xfs_extlen_t extsz, temp;
420 xfs_fsize_t isize;
368 int nimaps; 421 int nimaps;
369 int error;
370 int bmapi_flag; 422 int bmapi_flag;
371 int quota_flag; 423 int quota_flag;
372 int rt; 424 int rt;
373 xfs_trans_t *tp; 425 xfs_trans_t *tp;
374 xfs_bmbt_irec_t imap; 426 xfs_bmbt_irec_t imap;
375 xfs_bmap_free_t free_list; 427 xfs_bmap_free_t free_list;
376 xfs_filblks_t qblocks, resblks; 428 uint qblocks, resblks, resrtextents;
377 int committed; 429 int committed;
378 int resrtextents; 430 int error;
379 431
380 /* 432 /*
381 * Make sure that the dquots are there. This doesn't hold 433 * Make sure that the dquots are there. This doesn't hold
@@ -385,38 +437,53 @@ xfs_iomap_write_direct(
385 if (error) 437 if (error)
386 return XFS_ERROR(error); 438 return XFS_ERROR(error);
387 439
388 offset_fsb = XFS_B_TO_FSBT(mp, offset); 440 rt = XFS_IS_REALTIME_INODE(ip);
389 last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count))); 441 if (unlikely(rt)) {
390 count_fsb = last_fsb - offset_fsb; 442 if (!(extsz = ip->i_d.di_extsize))
391 if (found && (ret_imap->br_startblock == HOLESTARTBLOCK)) { 443 extsz = mp->m_sb.sb_rextsize;
392 xfs_fileoff_t map_last_fsb; 444 } else {
393 445 extsz = ip->i_d.di_extsize;
394 map_last_fsb = ret_imap->br_blockcount + ret_imap->br_startoff;
395 if (map_last_fsb < last_fsb) {
396 last_fsb = map_last_fsb;
397 count_fsb = last_fsb - offset_fsb;
398 }
399 ASSERT(count_fsb > 0);
400 } 446 }
401 447
402 /* 448 isize = ip->i_d.di_size;
403 * Determine if reserving space on the data or realtime partition. 449 if (io->io_new_size > isize)
404 */ 450 isize = io->io_new_size;
405 if ((rt = XFS_IS_REALTIME_INODE(ip))) {
406 xfs_extlen_t extsz;
407 451
408 if (!(extsz = ip->i_d.di_extsize)) 452 offset_fsb = XFS_B_TO_FSBT(mp, offset);
409 extsz = mp->m_sb.sb_rextsize; 453 last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count)));
410 resrtextents = qblocks = (count_fsb + extsz - 1); 454 if ((offset + count) > isize) {
411 do_div(resrtextents, mp->m_sb.sb_rextsize); 455 error = xfs_iomap_eof_align_last_fsb(mp, io, isize, extsz,
412 resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0); 456 &last_fsb);
413 quota_flag = XFS_QMOPT_RES_RTBLKS; 457 if (error)
458 goto error_out;
414 } else { 459 } else {
415 resrtextents = 0; 460 if (found && (ret_imap->br_startblock == HOLESTARTBLOCK))
416 resblks = qblocks = XFS_DIOSTRAT_SPACE_RES(mp, count_fsb); 461 last_fsb = MIN(last_fsb, (xfs_fileoff_t)
417 quota_flag = XFS_QMOPT_RES_REGBLKS; 462 ret_imap->br_blockcount +
463 ret_imap->br_startoff);
464 }
465 count_fsb = last_fsb - offset_fsb;
466 ASSERT(count_fsb > 0);
467
468 resaligned = count_fsb;
469 if (unlikely(extsz)) {
470 if ((temp = do_mod(offset_fsb, extsz)))
471 resaligned += temp;
472 if ((temp = do_mod(resaligned, extsz)))
473 resaligned += extsz - temp;
418 } 474 }
419 475
476 if (unlikely(rt)) {
477 resrtextents = qblocks = resaligned;
478 resrtextents /= mp->m_sb.sb_rextsize;
479 resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0);
480 quota_flag = XFS_QMOPT_RES_RTBLKS;
481 } else {
482 resrtextents = 0;
483 resblks = qblocks = XFS_DIOSTRAT_SPACE_RES(mp, resaligned);
484 quota_flag = XFS_QMOPT_RES_REGBLKS;
485 }
486
420 /* 487 /*
421 * Allocate and setup the transaction 488 * Allocate and setup the transaction
422 */ 489 */
@@ -426,7 +493,6 @@ xfs_iomap_write_direct(
426 XFS_WRITE_LOG_RES(mp), resrtextents, 493 XFS_WRITE_LOG_RES(mp), resrtextents,
427 XFS_TRANS_PERM_LOG_RES, 494 XFS_TRANS_PERM_LOG_RES,
428 XFS_WRITE_LOG_COUNT); 495 XFS_WRITE_LOG_COUNT);
429
430 /* 496 /*
431 * Check for running out of space, note: need lock to return 497 * Check for running out of space, note: need lock to return
432 */ 498 */
@@ -436,20 +502,20 @@ xfs_iomap_write_direct(
436 if (error) 502 if (error)
437 goto error_out; 503 goto error_out;
438 504
439 if (XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip, qblocks, 0, quota_flag)) { 505 error = XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip,
440 error = (EDQUOT); 506 qblocks, 0, quota_flag);
507 if (error)
441 goto error1; 508 goto error1;
442 }
443 509
444 bmapi_flag = XFS_BMAPI_WRITE;
445 xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); 510 xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
446 xfs_trans_ihold(tp, ip); 511 xfs_trans_ihold(tp, ip);
447 512
448 if (!(flags & BMAPI_MMAP) && (offset < ip->i_d.di_size || rt)) 513 bmapi_flag = XFS_BMAPI_WRITE;
514 if ((flags & BMAPI_DIRECT) && (offset < ip->i_d.di_size || extsz))
449 bmapi_flag |= XFS_BMAPI_PREALLOC; 515 bmapi_flag |= XFS_BMAPI_PREALLOC;
450 516
451 /* 517 /*
452 * Issue the bmapi() call to allocate the blocks 518 * Issue the xfs_bmapi() call to allocate the blocks
453 */ 519 */
454 XFS_BMAP_INIT(&free_list, &firstfsb); 520 XFS_BMAP_INIT(&free_list, &firstfsb);
455 nimaps = 1; 521 nimaps = 1;
@@ -484,8 +550,10 @@ xfs_iomap_write_direct(
484 "extent-state : %x \n", 550 "extent-state : %x \n",
485 (ip->i_mount)->m_fsname, 551 (ip->i_mount)->m_fsname,
486 (long long)ip->i_ino, 552 (long long)ip->i_ino,
487 ret_imap->br_startblock, ret_imap->br_startoff, 553 (unsigned long long)ret_imap->br_startblock,
488 ret_imap->br_blockcount,ret_imap->br_state); 554 (unsigned long long)ret_imap->br_startoff,
555 (unsigned long long)ret_imap->br_blockcount,
556 ret_imap->br_state);
489 } 557 }
490 return 0; 558 return 0;
491 559
@@ -501,6 +569,63 @@ error_out:
501 return XFS_ERROR(error); 569 return XFS_ERROR(error);
502} 570}
503 571
572/*
573 * If the caller is doing a write at the end of the file,
574 * then extend the allocation out to the file system's write
575 * iosize. We clean up any extra space left over when the
576 * file is closed in xfs_inactive().
577 *
578 * For sync writes, we are flushing delayed allocate space to
579 * try to make additional space available for allocation near
580 * the filesystem full boundary - preallocation hurts in that
581 * situation, of course.
582 */
583STATIC int
584xfs_iomap_eof_want_preallocate(
585 xfs_mount_t *mp,
586 xfs_iocore_t *io,
587 xfs_fsize_t isize,
588 xfs_off_t offset,
589 size_t count,
590 int ioflag,
591 xfs_bmbt_irec_t *imap,
592 int nimaps,
593 int *prealloc)
594{
595 xfs_fileoff_t start_fsb;
596 xfs_filblks_t count_fsb;
597 xfs_fsblock_t firstblock;
598 int n, error, imaps;
599
600 *prealloc = 0;
601 if ((ioflag & BMAPI_SYNC) || (offset + count) <= isize)
602 return 0;
603
604 /*
605 * If there are any real blocks past eof, then don't
606 * do any speculative allocation.
607 */
608 start_fsb = XFS_B_TO_FSBT(mp, ((xfs_ufsize_t)(offset + count - 1)));
609 count_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_MAXIOFFSET(mp));
610 while (count_fsb > 0) {
611 imaps = nimaps;
612 firstblock = NULLFSBLOCK;
613 error = XFS_BMAPI(mp, NULL, io, start_fsb, count_fsb,
614 0, &firstblock, 0, imap, &imaps, NULL);
615 if (error)
616 return error;
617 for (n = 0; n < imaps; n++) {
618 if ((imap[n].br_startblock != HOLESTARTBLOCK) &&
619 (imap[n].br_startblock != DELAYSTARTBLOCK))
620 return 0;
621 start_fsb += imap[n].br_blockcount;
622 count_fsb -= imap[n].br_blockcount;
623 }
624 }
625 *prealloc = 1;
626 return 0;
627}
628
504int 629int
505xfs_iomap_write_delay( 630xfs_iomap_write_delay(
506 xfs_inode_t *ip, 631 xfs_inode_t *ip,
@@ -514,13 +639,15 @@ xfs_iomap_write_delay(
514 xfs_iocore_t *io = &ip->i_iocore; 639 xfs_iocore_t *io = &ip->i_iocore;
515 xfs_fileoff_t offset_fsb; 640 xfs_fileoff_t offset_fsb;
516 xfs_fileoff_t last_fsb; 641 xfs_fileoff_t last_fsb;
517 xfs_fsize_t isize; 642 xfs_off_t aligned_offset;
643 xfs_fileoff_t ioalign;
518 xfs_fsblock_t firstblock; 644 xfs_fsblock_t firstblock;
645 xfs_extlen_t extsz;
646 xfs_fsize_t isize;
519 int nimaps; 647 int nimaps;
520 int error;
521 xfs_bmbt_irec_t imap[XFS_WRITE_IMAPS]; 648 xfs_bmbt_irec_t imap[XFS_WRITE_IMAPS];
522 int aeof; 649 int prealloc, fsynced = 0;
523 int fsynced = 0; 650 int error;
524 651
525 ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE) != 0); 652 ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE) != 0);
526 653
@@ -528,152 +655,57 @@ xfs_iomap_write_delay(
528 * Make sure that the dquots are there. This doesn't hold 655 * Make sure that the dquots are there. This doesn't hold
529 * the ilock across a disk read. 656 * the ilock across a disk read.
530 */ 657 */
531
532 error = XFS_QM_DQATTACH(mp, ip, XFS_QMOPT_ILOCKED); 658 error = XFS_QM_DQATTACH(mp, ip, XFS_QMOPT_ILOCKED);
533 if (error) 659 if (error)
534 return XFS_ERROR(error); 660 return XFS_ERROR(error);
535 661
662 if (XFS_IS_REALTIME_INODE(ip)) {
663 if (!(extsz = ip->i_d.di_extsize))
664 extsz = mp->m_sb.sb_rextsize;
665 } else {
666 extsz = ip->i_d.di_extsize;
667 }
668
669 offset_fsb = XFS_B_TO_FSBT(mp, offset);
670
536retry: 671retry:
537 isize = ip->i_d.di_size; 672 isize = ip->i_d.di_size;
538 if (io->io_new_size > isize) { 673 if (io->io_new_size > isize)
539 isize = io->io_new_size; 674 isize = io->io_new_size;
540 }
541 675
542 aeof = 0; 676 error = xfs_iomap_eof_want_preallocate(mp, io, isize, offset, count,
543 offset_fsb = XFS_B_TO_FSBT(mp, offset); 677 ioflag, imap, XFS_WRITE_IMAPS, &prealloc);
544 last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count))); 678 if (error)
545 /* 679 return error;
546 * If the caller is doing a write at the end of the file,
547 * then extend the allocation (and the buffer used for the write)
548 * out to the file system's write iosize. We clean up any extra
549 * space left over when the file is closed in xfs_inactive().
550 *
551 * For sync writes, we are flushing delayed allocate space to
552 * try to make additional space available for allocation near
553 * the filesystem full boundary - preallocation hurts in that
554 * situation, of course.
555 */
556 if (!(ioflag & BMAPI_SYNC) && ((offset + count) > ip->i_d.di_size)) {
557 xfs_off_t aligned_offset;
558 xfs_filblks_t count_fsb;
559 unsigned int iosize;
560 xfs_fileoff_t ioalign;
561 int n;
562 xfs_fileoff_t start_fsb;
563 680
564 /* 681 if (prealloc) {
565 * If there are any real blocks past eof, then don't
566 * do any speculative allocation.
567 */
568 start_fsb = XFS_B_TO_FSBT(mp,
569 ((xfs_ufsize_t)(offset + count - 1)));
570 count_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_MAXIOFFSET(mp));
571 while (count_fsb > 0) {
572 nimaps = XFS_WRITE_IMAPS;
573 error = XFS_BMAPI(mp, NULL, io, start_fsb, count_fsb,
574 0, &firstblock, 0, imap, &nimaps, NULL);
575 if (error) {
576 return error;
577 }
578 for (n = 0; n < nimaps; n++) {
579 if ( !(io->io_flags & XFS_IOCORE_RT) &&
580 !imap[n].br_startblock) {
581 cmn_err(CE_PANIC,"Access to block "
582 "zero: fs <%s> inode: %lld "
583 "start_block : %llx start_off "
584 ": %llx blkcnt : %llx "
585 "extent-state : %x \n",
586 (ip->i_mount)->m_fsname,
587 (long long)ip->i_ino,
588 imap[n].br_startblock,
589 imap[n].br_startoff,
590 imap[n].br_blockcount,
591 imap[n].br_state);
592 }
593 if ((imap[n].br_startblock != HOLESTARTBLOCK) &&
594 (imap[n].br_startblock != DELAYSTARTBLOCK)) {
595 goto write_map;
596 }
597 start_fsb += imap[n].br_blockcount;
598 count_fsb -= imap[n].br_blockcount;
599 }
600 }
601 iosize = mp->m_writeio_blocks;
602 aligned_offset = XFS_WRITEIO_ALIGN(mp, (offset + count - 1)); 682 aligned_offset = XFS_WRITEIO_ALIGN(mp, (offset + count - 1));
603 ioalign = XFS_B_TO_FSBT(mp, aligned_offset); 683 ioalign = XFS_B_TO_FSBT(mp, aligned_offset);
604 last_fsb = ioalign + iosize; 684 last_fsb = ioalign + mp->m_writeio_blocks;
605 aeof = 1; 685 } else {
686 last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count)));
606 } 687 }
607write_map:
608 nimaps = XFS_WRITE_IMAPS;
609 firstblock = NULLFSBLOCK;
610 688
611 /* 689 if (prealloc || extsz) {
612 * If mounted with the "-o swalloc" option, roundup the allocation 690 error = xfs_iomap_eof_align_last_fsb(mp, io, isize, extsz,
613 * request to a stripe width boundary if the file size is >= 691 &last_fsb);
614 * stripe width and we are allocating past the allocation eof. 692 if (error)
615 */
616 if (!(io->io_flags & XFS_IOCORE_RT) && mp->m_swidth
617 && (mp->m_flags & XFS_MOUNT_SWALLOC)
618 && (isize >= XFS_FSB_TO_B(mp, mp->m_swidth)) && aeof) {
619 int eof;
620 xfs_fileoff_t new_last_fsb;
621
622 new_last_fsb = roundup_64(last_fsb, mp->m_swidth);
623 error = xfs_bmap_eof(ip, new_last_fsb, XFS_DATA_FORK, &eof);
624 if (error) {
625 return error;
626 }
627 if (eof) {
628 last_fsb = new_last_fsb;
629 }
630 /*
631 * Roundup the allocation request to a stripe unit (m_dalign) boundary
632 * if the file size is >= stripe unit size, and we are allocating past
633 * the allocation eof.
634 */
635 } else if (!(io->io_flags & XFS_IOCORE_RT) && mp->m_dalign &&
636 (isize >= XFS_FSB_TO_B(mp, mp->m_dalign)) && aeof) {
637 int eof;
638 xfs_fileoff_t new_last_fsb;
639 new_last_fsb = roundup_64(last_fsb, mp->m_dalign);
640 error = xfs_bmap_eof(ip, new_last_fsb, XFS_DATA_FORK, &eof);
641 if (error) {
642 return error;
643 }
644 if (eof) {
645 last_fsb = new_last_fsb;
646 }
647 /*
648 * Round up the allocation request to a real-time extent boundary
649 * if the file is on the real-time subvolume.
650 */
651 } else if (io->io_flags & XFS_IOCORE_RT && aeof) {
652 int eof;
653 xfs_fileoff_t new_last_fsb;
654
655 new_last_fsb = roundup_64(last_fsb, mp->m_sb.sb_rextsize);
656 error = XFS_BMAP_EOF(mp, io, new_last_fsb, XFS_DATA_FORK, &eof);
657 if (error) {
658 return error; 693 return error;
659 }
660 if (eof)
661 last_fsb = new_last_fsb;
662 } 694 }
695
696 nimaps = XFS_WRITE_IMAPS;
697 firstblock = NULLFSBLOCK;
663 error = xfs_bmapi(NULL, ip, offset_fsb, 698 error = xfs_bmapi(NULL, ip, offset_fsb,
664 (xfs_filblks_t)(last_fsb - offset_fsb), 699 (xfs_filblks_t)(last_fsb - offset_fsb),
665 XFS_BMAPI_DELAY | XFS_BMAPI_WRITE | 700 XFS_BMAPI_DELAY | XFS_BMAPI_WRITE |
666 XFS_BMAPI_ENTIRE, &firstblock, 1, imap, 701 XFS_BMAPI_ENTIRE, &firstblock, 1, imap,
667 &nimaps, NULL); 702 &nimaps, NULL);
668 /* 703 if (error && (error != ENOSPC))
669 * This can be EDQUOT, if nimaps == 0
670 */
671 if (error && (error != ENOSPC)) {
672 return XFS_ERROR(error); 704 return XFS_ERROR(error);
673 } 705
674 /* 706 /*
675 * If bmapi returned us nothing, and if we didn't get back EDQUOT, 707 * If bmapi returned us nothing, and if we didn't get back EDQUOT,
676 * then we must have run out of space. 708 * then we must have run out of space - flush delalloc, and retry..
677 */ 709 */
678 if (nimaps == 0) { 710 if (nimaps == 0) {
679 xfs_iomap_enter_trace(XFS_IOMAP_WRITE_NOSPACE, 711 xfs_iomap_enter_trace(XFS_IOMAP_WRITE_NOSPACE,
@@ -685,17 +717,21 @@ write_map:
685 goto retry; 717 goto retry;
686 } 718 }
687 719
688 *ret_imap = imap[0]; 720 if (!(io->io_flags & XFS_IOCORE_RT) && !ret_imap->br_startblock) {
689 *nmaps = 1;
690 if ( !(io->io_flags & XFS_IOCORE_RT) && !ret_imap->br_startblock) {
691 cmn_err(CE_PANIC,"Access to block zero: fs <%s> inode: %lld " 721 cmn_err(CE_PANIC,"Access to block zero: fs <%s> inode: %lld "
692 "start_block : %llx start_off : %llx blkcnt : %llx " 722 "start_block : %llx start_off : %llx blkcnt : %llx "
693 "extent-state : %x \n", 723 "extent-state : %x \n",
694 (ip->i_mount)->m_fsname, 724 (ip->i_mount)->m_fsname,
695 (long long)ip->i_ino, 725 (long long)ip->i_ino,
696 ret_imap->br_startblock, ret_imap->br_startoff, 726 (unsigned long long)ret_imap->br_startblock,
697 ret_imap->br_blockcount,ret_imap->br_state); 727 (unsigned long long)ret_imap->br_startoff,
728 (unsigned long long)ret_imap->br_blockcount,
729 ret_imap->br_state);
698 } 730 }
731
732 *ret_imap = imap[0];
733 *nmaps = 1;
734
699 return 0; 735 return 0;
700} 736}
701 737
@@ -821,17 +857,21 @@ xfs_iomap_write_allocate(
821 */ 857 */
822 858
823 for (i = 0; i < nimaps; i++) { 859 for (i = 0; i < nimaps; i++) {
824 if ( !(io->io_flags & XFS_IOCORE_RT) && 860 if (!(io->io_flags & XFS_IOCORE_RT) &&
825 !imap[i].br_startblock) { 861 !imap[i].br_startblock) {
826 cmn_err(CE_PANIC,"Access to block zero: " 862 cmn_err(CE_PANIC,"Access to block zero: "
827 "fs <%s> inode: %lld " 863 "fs <%s> inode: %lld "
828 "start_block : %llx start_off : %llx " 864 "start_block : %llx start_off : %llx "
829 "blkcnt : %llx extent-state : %x \n", 865 "blkcnt : %llx extent-state : %x \n",
830 (ip->i_mount)->m_fsname, 866 (ip->i_mount)->m_fsname,
831 (long long)ip->i_ino, 867 (long long)ip->i_ino,
832 imap[i].br_startblock, 868 (unsigned long long)
833 imap[i].br_startoff, 869 imap[i].br_startblock,
834 imap[i].br_blockcount,imap[i].br_state); 870 (unsigned long long)
871 imap[i].br_startoff,
872 (unsigned long long)
873 imap[i].br_blockcount,
874 imap[i].br_state);
835 } 875 }
836 if ((offset_fsb >= imap[i].br_startoff) && 876 if ((offset_fsb >= imap[i].br_startoff) &&
837 (offset_fsb < (imap[i].br_startoff + 877 (offset_fsb < (imap[i].br_startoff +
@@ -868,17 +908,17 @@ xfs_iomap_write_unwritten(
868{ 908{
869 xfs_mount_t *mp = ip->i_mount; 909 xfs_mount_t *mp = ip->i_mount;
870 xfs_iocore_t *io = &ip->i_iocore; 910 xfs_iocore_t *io = &ip->i_iocore;
871 xfs_trans_t *tp;
872 xfs_fileoff_t offset_fsb; 911 xfs_fileoff_t offset_fsb;
873 xfs_filblks_t count_fsb; 912 xfs_filblks_t count_fsb;
874 xfs_filblks_t numblks_fsb; 913 xfs_filblks_t numblks_fsb;
875 xfs_bmbt_irec_t imap; 914 xfs_fsblock_t firstfsb;
915 int nimaps;
916 xfs_trans_t *tp;
917 xfs_bmbt_irec_t imap;
918 xfs_bmap_free_t free_list;
919 uint resblks;
876 int committed; 920 int committed;
877 int error; 921 int error;
878 int nres;
879 int nimaps;
880 xfs_fsblock_t firstfsb;
881 xfs_bmap_free_t free_list;
882 922
883 xfs_iomap_enter_trace(XFS_IOMAP_UNWRITTEN, 923 xfs_iomap_enter_trace(XFS_IOMAP_UNWRITTEN,
884 &ip->i_iocore, offset, count); 924 &ip->i_iocore, offset, count);
@@ -887,9 +927,9 @@ xfs_iomap_write_unwritten(
887 count_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)offset + count); 927 count_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)offset + count);
888 count_fsb = (xfs_filblks_t)(count_fsb - offset_fsb); 928 count_fsb = (xfs_filblks_t)(count_fsb - offset_fsb);
889 929
890 do { 930 resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0) << 1;
891 nres = XFS_DIOSTRAT_SPACE_RES(mp, 0);
892 931
932 do {
893 /* 933 /*
894 * set up a transaction to convert the range of extents 934 * set up a transaction to convert the range of extents
895 * from unwritten to real. Do allocations in a loop until 935 * from unwritten to real. Do allocations in a loop until
@@ -897,7 +937,7 @@ xfs_iomap_write_unwritten(
897 */ 937 */
898 938
899 tp = xfs_trans_alloc(mp, XFS_TRANS_STRAT_WRITE); 939 tp = xfs_trans_alloc(mp, XFS_TRANS_STRAT_WRITE);
900 error = xfs_trans_reserve(tp, nres, 940 error = xfs_trans_reserve(tp, resblks,
901 XFS_WRITE_LOG_RES(mp), 0, 941 XFS_WRITE_LOG_RES(mp), 0,
902 XFS_TRANS_PERM_LOG_RES, 942 XFS_TRANS_PERM_LOG_RES,
903 XFS_WRITE_LOG_COUNT); 943 XFS_WRITE_LOG_COUNT);
@@ -916,7 +956,7 @@ xfs_iomap_write_unwritten(
916 XFS_BMAP_INIT(&free_list, &firstfsb); 956 XFS_BMAP_INIT(&free_list, &firstfsb);
917 nimaps = 1; 957 nimaps = 1;
918 error = xfs_bmapi(tp, ip, offset_fsb, count_fsb, 958 error = xfs_bmapi(tp, ip, offset_fsb, count_fsb,
919 XFS_BMAPI_WRITE, &firstfsb, 959 XFS_BMAPI_WRITE|XFS_BMAPI_CONVERT, &firstfsb,
920 1, &imap, &nimaps, &free_list); 960 1, &imap, &nimaps, &free_list);
921 if (error) 961 if (error)
922 goto error_on_bmapi_transaction; 962 goto error_on_bmapi_transaction;
@@ -930,15 +970,17 @@ xfs_iomap_write_unwritten(
930 xfs_iunlock(ip, XFS_ILOCK_EXCL); 970 xfs_iunlock(ip, XFS_ILOCK_EXCL);
931 if (error) 971 if (error)
932 goto error0; 972 goto error0;
933 973
934 if ( !(io->io_flags & XFS_IOCORE_RT) && !imap.br_startblock) { 974 if ( !(io->io_flags & XFS_IOCORE_RT) && !imap.br_startblock) {
935 cmn_err(CE_PANIC,"Access to block zero: fs <%s> " 975 cmn_err(CE_PANIC,"Access to block zero: fs <%s> "
936 "inode: %lld start_block : %llx start_off : " 976 "inode: %lld start_block : %llx start_off : "
937 "%llx blkcnt : %llx extent-state : %x \n", 977 "%llx blkcnt : %llx extent-state : %x \n",
938 (ip->i_mount)->m_fsname, 978 (ip->i_mount)->m_fsname,
939 (long long)ip->i_ino, 979 (long long)ip->i_ino,
940 imap.br_startblock,imap.br_startoff, 980 (unsigned long long)imap.br_startblock,
941 imap.br_blockcount,imap.br_state); 981 (unsigned long long)imap.br_startoff,
982 (unsigned long long)imap.br_blockcount,
983 imap.br_state);
942 } 984 }
943 985
944 if ((numblks_fsb = imap.br_blockcount) == 0) { 986 if ((numblks_fsb = imap.br_blockcount) == 0) {