Robert Wing 0c5a59252c fsck_ffs: fix background fsck in preen mode
Background checks are only allowed for mounted filesystems - don't try
to open the device for writing when performing a background check.

While here, remove a debugging printf that's commented out.

PR:             256746
Fixes:          5cc52631b3b88dfc36d8049dc8bece8573c5f9af
Reviewed by:	mckusick
MFC After:      1 week
Differential Revision:	https://reviews.freebsd.org/D30880
2021-07-11 12:47:27 -08:00
..
2021-07-07 13:52:20 -06:00