CVS commit: src/sys/kern

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Mon Jul 17 10:55:27 UTC 2023

Modified Files:
        src/sys/kern: kern_kthread.c

Log Message:
kthread(9): Fix nested kthread_join.

No reason for one kthread_join to interfere with another, or to cause
non-cyclic dependencies to get stuck.

Uses struct lwp::l_private for this purpose, which for user threads
stores the tls pointer.  I don't think anything in kthread(9) uses
l_private -- generally kernel threads will use lwp specificdata.  But
maybe this should use a new member instead, or a union member with an
existing pointer for the purpose.


To generate a diff of this commit:
cvs rdiff -u -r1.47 -r1.48 src/sys/kern/kern_kthread.c

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