tree 058498a7e20a824463f9a44675f8bbbcfece68c7
parent 4a7aa05a1069e1671c3b58d25a0874f83be5c459
author Eric Sandeen <sandeen@redhat.com> 1493741573 -0500
committer Eric Sandeen <sandeen@redhat.com> 1493741573 -0500

mkfs.xfs: Assign proper defaults to rmapbt and reflink flags

The "defaultval" field in the options structure was a bit confusing,
so when the rmapbt & reflink options got added, the desire was
to keep them off by default, and "defaultval = 0" got set.

However, the purpose of this field is to define the default value
when the flag is specified with no associated value, i.e.

-m rmapbt vs. -m rmapbt=0 or -m rmapbt=1

Today, the resulting behavior is unexpected, and different from any
other mkfs flags; specifying "-m rmapbt,reflink" results in a
filesystem /without/ those features.

Fix these to be consistent with every other boolean flag in the
mkfs options, so that specifying the flag with no value will
enable the feature.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>