CVS commit: src/sys/dev/dm

["Tomohiro Kusumi" <tkusumi%netbsd.org@localhost>]

Module Name:    src
Committed By:   tkusumi
Date:           Mon Dec  2 15:17:43 UTC 2019

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

Log Message:
dm: Add a comment on race window on unload

There is a minor race window on unload vs device creation
that can cause panic.
https://github.com/DragonFlyBSD/DragonFlyBSD/commit/53a07f3ae7313aa58948a60f46428bfc2254dc3c

taken-from: DragonFlyBSD


To generate a diff of this commit:
cvs rdiff -u -r1.40 -r1.41 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.