kern/60809: missing ctime updates on attribute changes

["campbell+netbsd%mumble.net@localhost via gnats" <gnats-admin%NetBSD.org@localhost>]

>Number:         60809
>Category:       kern
>Synopsis:       missing ctime updates on attribute changes
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Sep 26 21:40:00 +0000 2026
>Originator:     Taylor R Campbell
>Release:        current, 11, 10, ...
>Organization:
Time NetBSD Changedation, Inc.
>Environment:
>Description:

	At least sysvbfs and v7fs are missing ctime updates on file
	attribute changes like chmod or chown.  Possibly others?

>How-To-Repeat:

	lift up a rock of ctime updates and find bugs underneath

>Fix:

	Yes, please!