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xfs: allow appending aio writes

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XFS can easily support appending aio writes by ensuring we always allocate
blocks as unwritten extents when performing direct I/O writes and only
converting them to written extents at I/O completion.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Christoph Hellwig 2014-02-10 10:28:04 +11:00 committed by Dave Chinner
parent d531d91d69
commit 9862f62fab
1 changed files with 2 additions and 1 deletions
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3
fs/xfs/xfs_aops.c
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@ -1441,7 +1441,8 @@ xfs_vm_direct_IO(
ret = __blockdev_direct_IO(rw, iocb, inode, bdev, iov,
offset, nr_segs,
xfs_get_blocks_direct,
xfs_end_io_direct_write, NULL, 0);
xfs_end_io_direct_write, NULL,
DIO_ASYNC_EXTEND);
if (ret != -EIOCBQUEUED && iocb->private)
goto out_destroy_ioend;
} else {