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2019-10-21iomap: lift the xfs writeback code to iomapChristoph Hellwig1-0/+1
Take the xfs writeback code and move it to fs/iomap. A new structure with three methods is added as the abstraction from the generic writeback code to the file system. These methods are used to map blocks, submit an ioend, and cancel a page that encountered an error before it was added to an ioend. Signed-off-by: Christoph Hellwig <hch@lst.de> [darrick: rename ->submit_ioend to ->prepare_ioend to clarify what it does] Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2019-10-21iomap: lift common tracing code from xfs to iomapChristoph Hellwig1-0/+87
Lift the xfs code for tracing address space operations to the iomap layer. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>