CVS commit: src/sys/dev/dm

["Juergen Hannken-Illjes" <hannken%netbsd.org@localhost>]

Module Name:    src
Committed By:   hannken
Date:           Fri May  7 09:54:43 UTC 2021

Modified Files:
        src/sys/dev/dm: device-mapper.c

Log Message:
Track the number of cdev and bdev opens and fail dm_detach()
on open devices unless detach is forced.

PR kern/54969 (Disk cache is no longer flushed on shutdown)


To generate a diff of this commit:
cvs rdiff -u -r1.61 -r1.62 src/sys/dev/dm/device-mapper.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.