xfs: introduce new internal log vector structure

The current log IO vector structure is a flat array and not
extensible. To make it possible to keep separate log IO vectors for
individual log items, we need a method of chaining log IO vectors
together.

Introduce a new log vector type that can be used to wrap the
existing log IO vectors on use that internally to the log. This
means that the existing external interface (xfs_log_write) does not
change and hence no changes to the transaction commit code are
required.

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Dave Chinner <[email protected]>
Reviewed-by: Dave Chinner <[email protected]>

0 files changed, 0 insertions, 0 deletions