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xfs: always use unwritten extents for direct I/O writes
To allow aio writes beyond i_size we need to create unwritten extents for newly allocated blocks, similar to how we already do inside i_size. Instead of adding another special case we now use unwritten extents unconditionally. This also marks the end of directly allocation data extents in all of XFS - we now always use either delalloc or unwritten extents. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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1 changed files with 3 additions and 7 deletions
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@ -128,7 +128,6 @@ xfs_iomap_write_direct(
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xfs_fsblock_t firstfsb;
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xfs_extlen_t extsz, temp;
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int nimaps;
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int bmapi_flag;
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int quota_flag;
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int rt;
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xfs_trans_t *tp;
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@ -200,18 +199,15 @@ xfs_iomap_write_direct(
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xfs_trans_ijoin(tp, ip, 0);
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bmapi_flag = 0;
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if (offset < XFS_ISIZE(ip) || extsz)
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bmapi_flag |= XFS_BMAPI_PREALLOC;
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/*
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* From this point onwards we overwrite the imap pointer that the
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* caller gave to us.
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*/
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xfs_bmap_init(&free_list, &firstfsb);
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nimaps = 1;
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error = xfs_bmapi_write(tp, ip, offset_fsb, count_fsb, bmapi_flag,
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&firstfsb, 0, imap, &nimaps, &free_list);
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error = xfs_bmapi_write(tp, ip, offset_fsb, count_fsb,
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XFS_BMAPI_PREALLOC, &firstfsb, 0,
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imap, &nimaps, &free_list);
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if (error)
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goto out_bmap_cancel;
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