diff options
Diffstat (limited to 'fs/xfs/xfs_iomap.c')
-rw-r--r-- | fs/xfs/xfs_iomap.c | 61 |
1 files changed, 15 insertions, 46 deletions
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index 08ce72316bfe..5aaa2d7ec155 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c | |||
@@ -338,38 +338,6 @@ xfs_iomap_eof_align_last_fsb( | |||
338 | } | 338 | } |
339 | 339 | ||
340 | STATIC int | 340 | STATIC int |
341 | xfs_flush_space( | ||
342 | xfs_inode_t *ip, | ||
343 | int *fsynced, | ||
344 | int *ioflags) | ||
345 | { | ||
346 | switch (*fsynced) { | ||
347 | case 0: | ||
348 | if (ip->i_delayed_blks) { | ||
349 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | ||
350 | xfs_flush_inode(ip); | ||
351 | xfs_ilock(ip, XFS_ILOCK_EXCL); | ||
352 | *fsynced = 1; | ||
353 | } else { | ||
354 | *ioflags |= BMAPI_SYNC; | ||
355 | *fsynced = 2; | ||
356 | } | ||
357 | return 0; | ||
358 | case 1: | ||
359 | *fsynced = 2; | ||
360 | *ioflags |= BMAPI_SYNC; | ||
361 | return 0; | ||
362 | case 2: | ||
363 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | ||
364 | xfs_flush_device(ip); | ||
365 | xfs_ilock(ip, XFS_ILOCK_EXCL); | ||
366 | *fsynced = 3; | ||
367 | return 0; | ||
368 | } | ||
369 | return 1; | ||
370 | } | ||
371 | |||
372 | STATIC int | ||
373 | xfs_cmn_err_fsblock_zero( | 341 | xfs_cmn_err_fsblock_zero( |
374 | xfs_inode_t *ip, | 342 | xfs_inode_t *ip, |
375 | xfs_bmbt_irec_t *imap) | 343 | xfs_bmbt_irec_t *imap) |
@@ -538,15 +506,9 @@ error_out: | |||
538 | } | 506 | } |
539 | 507 | ||
540 | /* | 508 | /* |
541 | * If the caller is doing a write at the end of the file, | 509 | * If the caller is doing a write at the end of the file, then extend the |
542 | * then extend the allocation out to the file system's write | 510 | * allocation out to the file system's write iosize. We clean up any extra |
543 | * iosize. We clean up any extra space left over when the | 511 | * space left over when the file is closed in xfs_inactive(). |
544 | * file is closed in xfs_inactive(). | ||
545 | * | ||
546 | * For sync writes, we are flushing delayed allocate space to | ||
547 | * try to make additional space available for allocation near | ||
548 | * the filesystem full boundary - preallocation hurts in that | ||
549 | * situation, of course. | ||
550 | */ | 512 | */ |
551 | STATIC int | 513 | STATIC int |
552 | xfs_iomap_eof_want_preallocate( | 514 | xfs_iomap_eof_want_preallocate( |
@@ -565,7 +527,7 @@ xfs_iomap_eof_want_preallocate( | |||
565 | int n, error, imaps; | 527 | int n, error, imaps; |
566 | 528 | ||
567 | *prealloc = 0; | 529 | *prealloc = 0; |
568 | if ((ioflag & BMAPI_SYNC) || (offset + count) <= ip->i_size) | 530 | if ((offset + count) <= ip->i_size) |
569 | return 0; | 531 | return 0; |
570 | 532 | ||
571 | /* | 533 | /* |
@@ -611,7 +573,7 @@ xfs_iomap_write_delay( | |||
611 | xfs_extlen_t extsz; | 573 | xfs_extlen_t extsz; |
612 | int nimaps; | 574 | int nimaps; |
613 | xfs_bmbt_irec_t imap[XFS_WRITE_IMAPS]; | 575 | xfs_bmbt_irec_t imap[XFS_WRITE_IMAPS]; |
614 | int prealloc, fsynced = 0; | 576 | int prealloc, flushed = 0; |
615 | int error; | 577 | int error; |
616 | 578 | ||
617 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); | 579 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
@@ -627,12 +589,12 @@ xfs_iomap_write_delay( | |||
627 | extsz = xfs_get_extsz_hint(ip); | 589 | extsz = xfs_get_extsz_hint(ip); |
628 | offset_fsb = XFS_B_TO_FSBT(mp, offset); | 590 | offset_fsb = XFS_B_TO_FSBT(mp, offset); |
629 | 591 | ||
630 | retry: | ||
631 | error = xfs_iomap_eof_want_preallocate(mp, ip, offset, count, | 592 | error = xfs_iomap_eof_want_preallocate(mp, ip, offset, count, |
632 | ioflag, imap, XFS_WRITE_IMAPS, &prealloc); | 593 | ioflag, imap, XFS_WRITE_IMAPS, &prealloc); |
633 | if (error) | 594 | if (error) |
634 | return error; | 595 | return error; |
635 | 596 | ||
597 | retry: | ||
636 | if (prealloc) { | 598 | if (prealloc) { |
637 | aligned_offset = XFS_WRITEIO_ALIGN(mp, (offset + count - 1)); | 599 | aligned_offset = XFS_WRITEIO_ALIGN(mp, (offset + count - 1)); |
638 | ioalign = XFS_B_TO_FSBT(mp, aligned_offset); | 600 | ioalign = XFS_B_TO_FSBT(mp, aligned_offset); |
@@ -659,15 +621,22 @@ retry: | |||
659 | 621 | ||
660 | /* | 622 | /* |
661 | * If bmapi returned us nothing, and if we didn't get back EDQUOT, | 623 | * If bmapi returned us nothing, and if we didn't get back EDQUOT, |
662 | * then we must have run out of space - flush delalloc, and retry.. | 624 | * then we must have run out of space - flush all other inodes with |
625 | * delalloc blocks and retry without EOF preallocation. | ||
663 | */ | 626 | */ |
664 | if (nimaps == 0) { | 627 | if (nimaps == 0) { |
665 | xfs_iomap_enter_trace(XFS_IOMAP_WRITE_NOSPACE, | 628 | xfs_iomap_enter_trace(XFS_IOMAP_WRITE_NOSPACE, |
666 | ip, offset, count); | 629 | ip, offset, count); |
667 | if (xfs_flush_space(ip, &fsynced, &ioflag)) | 630 | if (flushed) |
668 | return XFS_ERROR(ENOSPC); | 631 | return XFS_ERROR(ENOSPC); |
669 | 632 | ||
633 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | ||
634 | xfs_flush_inodes(ip); | ||
635 | xfs_ilock(ip, XFS_ILOCK_EXCL); | ||
636 | |||
637 | flushed = 1; | ||
670 | error = 0; | 638 | error = 0; |
639 | prealloc = 0; | ||
671 | goto retry; | 640 | goto retry; |
672 | } | 641 | } |
673 | 642 | ||