Author: jhb
Date: Mon Jan 3 16:29:00 2011
New Revision: 216921
URL: http://svn.freebsd.org/changeset/base/216921
Log:
Small whitespace nits and add a comment explaining why kthread_exit() can
call kproc_exit() that was lost earlier.
Modified:
head/sys/kern/kern_kthread.c
Modified: head/sys/kern/kern_kthread.c
==============================================================================
--- head/sys/kern/kern_kthread.c Mon Jan 3 15:31:02 2011
(r216920)
+++ head/sys/kern/kern_kthread.c Mon Jan 3 16:29:00 2011
(r216921)
@@ -316,17 +316,20 @@ kthread_exit(void)
p = curthread->td_proc;
-
/* A module may be waiting for us to exit. */
wakeup(curthread);
+
+ /*
+ * The last exiting thread in a kernel process must tear down
+ * the whole process.
+ */
rw_wlock(&tidhash_lock);
PROC_LOCK(p);
if (p->p_numthreads == 1) {
PROC_UNLOCK(p);
rw_wunlock(&tidhash_lock);
kproc_exit(0);
-
- /* NOTREACHED. */
+ /* NOTREACHED */
}
LIST_REMOVE(curthread, td_hash);
rw_wunlock(&tidhash_lock);
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