diff options
| -rw-r--r-- | fs/xfs/xfs_bmap_util.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index c640dfc2d00f..93829d86751d 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -774,12 +774,10 @@ xfs_alloc_file_space( { xfs_mount_t *mp = ip->i_mount; xfs_off_t count; - xfs_filblks_t allocated_fsb; xfs_filblks_t allocatesize_fsb; xfs_extlen_t extsz, temp; xfs_fileoff_t startoffset_fsb; xfs_fileoff_t endoffset_fsb; - int nimaps; int rt; xfs_trans_t *tp; xfs_bmbt_irec_t imaps[1], *imapp; @@ -802,7 +800,6 @@ xfs_alloc_file_space( count = len; imapp = &imaps[0]; - nimaps = 1; startoffset_fsb = XFS_B_TO_FSBT(mp, offset); endoffset_fsb = XFS_B_TO_FSB(mp, offset + count); allocatesize_fsb = endoffset_fsb - startoffset_fsb; @@ -813,6 +810,7 @@ xfs_alloc_file_space( while (allocatesize_fsb && !error) { xfs_fileoff_t s, e; unsigned int dblocks, rblocks, resblks; + int nimaps = 1; /* * Determine space reservations for data/realtime. @@ -878,15 +876,19 @@ xfs_alloc_file_space( if (error) break; - allocated_fsb = imapp->br_blockcount; - - if (nimaps == 0) { - error = -ENOSPC; - break; + /* + * If the allocator cannot find a single free extent large + * enough to cover the start block of the requested range, + * xfs_bmapi_write will return 0 but leave *nimaps set to 0. + * + * In that case we simply need to keep looping with the same + * startoffset_fsb so that one of the following allocations + * will eventually reach the requested range. + */ + if (nimaps) { + startoffset_fsb += imapp->br_blockcount; + allocatesize_fsb -= imapp->br_blockcount; } - - startoffset_fsb += allocated_fsb; - allocatesize_fsb -= allocated_fsb; } return error; |