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commit 9862f62faba8c279ac07415a6f610041116fbdc0
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Mon Feb 10 10:28:04 2014 +1100
xfs: allow appending aio writes
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@xxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Dave Chinner <david@xxxxxxxxxxxxx>
commit d531d91d69902e55633ed834f531aa0b48d618cc
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Mon Feb 10 10:27:43 2014 +1100
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@xxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Dave Chinner <david@xxxxxxxxxxxxx>
commit 6039257378e4c84da06e68230b14fef955508ce6
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Mon Feb 10 10:27:11 2014 +1100
direct-io: add flag to allow aio writes beyond i_size
Some filesystems can handle direct I/O writes beyond i_size safely,
so allow them to opt into receiving them.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Dave Chinner <david@xxxxxxxxxxxxx>
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