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9e0933c21c
Support direct I/O atomic writes by producing a single bio with REQ_ATOMIC flag set. Initially FSes (XFS) should only support writing a single FS block atomically. As with any atomic write, we should produce a single bio which covers the complete write length. Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: "Darrick J. Wong" <djwong@kernel.org> Signed-off-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> [djwong: clarify a couple of things in the docs] Signed-off-by: Darrick J. Wong <djwong@kernel.org> |
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