K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2020-11-20T15:19:30.092045Z
K 7
svn:log
V 299
msdosfs: suspend around unmount or remount rw->ro.

This also eliminates unsafe use of VFS_SYNC(MNT_WAIT).

Requested by:	mckusick
Discussed with:	imp
Tested by:	pho (previous version)
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D27269

END