In preparation for switching linuxulator to the use the native 1:1

threads split sys_thr_exit() up into sys_thr_exit() and kern_thr_exit().
Move
Where the second will be used in linux_exit() system call later.

Differential Revision:	https://reviews.freebsd.org/D1028
Reviewed by:	trasz

1 files changed, 10 insertions, 4 deletions

diff --git a/sys/kern/kern_thr.c b/sys/kern/kern_thr.c
index 6911bb97b3df..e686b2278fd6 100644
--- a/sys/kern/kern_thr.c
+++ b/sys/kern/kern_thr.c
@@ -307,9 +307,6 @@ int
 sys_thr_exit(struct thread *td, struct thr_exit_args *uap)
     /* long *state */
 {
-	struct proc *p;
-
-	p = td->td_proc;
 
 	/* Signal userland that it can free the stack. */
 	if ((void *)uap->state != NULL) {
@@ -317,8 +314,17 @@ sys_thr_exit(struct thread *td, struct thr_exit_args *uap)
 		kern_umtx_wake(td, uap->state, INT_MAX, 0);
 	}
 
-	rw_wlock(&tidhash_lock);
+	return (kern_thr_exit(td));
+}
+
+int
+kern_thr_exit(struct thread *td)
+{
+	struct proc *p;
 
+	p = td->td_proc;
+
+	rw_wlock(&tidhash_lock);
 	PROC_LOCK(p);
 
 	if (p->p_numthreads != 1) {