xfs: treat idx as a cursor in xfs_bmap_add_extent_unwritten_real
authorChristoph Hellwig <hch@lst.de>
Fri, 3 Nov 2017 17:34:40 +0000 (10:34 -0700)
committerDarrick J. Wong <darrick.wong@oracle.com>
Mon, 6 Nov 2017 19:53:39 +0000 (11:53 -0800)
commita681847796df31c036810bce97003f687e1db5f4
treee4456c1e8b8c072b401f41fa893dbc4f30f01633
parent1d2e0089e16642928c76f032c1dbd0eb6da22935
xfs: treat idx as a cursor in xfs_bmap_add_extent_unwritten_real

Stop poking before and after the index and just increment or decrement
it while doing our operations on it to prepare for a new extent list
implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
fs/xfs/libxfs/xfs_bmap.c