xfs: return committed status from xfs_trans_roll()

xfs: return committed status from xfs_trans_roll()

[ Upstream commit d43ac29be7a174f93a3d26cc1e68668fe86b782f ]

Some callers need to make error handling decisions based on whether
the current transaction successfully committed or not. Rename
xfs_trans_roll(), add a new parameter and provide a wrapper to
preserve existing callers.

Orabug: 27609404
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: wen.gang.wang@oracle.com
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>