svn commit: r283372 - in head/sys: kern sys

[Dmitry Chagin]

Author: dchagin
Date: Sun May 24 14:36:33 2015
New Revision: 283372
URL: https://svnweb.freebsd.org/changeset/base/283372

Log:
  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

Modified:
  head/sys/kern/kern_thr.c
  head/sys/sys/syscallsubr.h

Modified: head/sys/kern/kern_thr.c
==============================================================================
--- head/sys/kern/kern_thr.c	Sun May 24 14:34:46 2015	(r283371)
+++ head/sys/kern/kern_thr.c	Sun May 24 14:36:33 2015	(r283372)
@@ -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 t
 		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) {

Modified: head/sys/sys/syscallsubr.h
==============================================================================
--- head/sys/sys/syscallsubr.h	Sun May 24 14:34:46 2015	(r283371)
+++ head/sys/sys/syscallsubr.h	Sun May 24 14:36:33 2015	(r283372)
@@ -214,6 +214,7 @@ int	kern_ktimer_settime(struct thread *t
 int	kern_ktimer_gettime(struct thread *td, int timer_id,
 	    struct itimerspec *val);
 int	kern_ktimer_getoverrun(struct thread *td, int timer_id);
+int	kern_thr_exit(struct thread *td);
 int	kern_thr_new(struct thread *td, struct thr_param *param);
 int	kern_thr_suspend(struct thread *td, struct timespec *tsp);
 int	kern_truncate(struct thread *td, char *path, enum uio_seg pathseg,