[src/trunk]: src/sys/rump/librump/rumpkern fd_hold() when creating new thread...

[pooka <pooka%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/fa27ac15a8ab
branches:  trunk
changeset: 756303:fa27ac15a8ab
user:      pooka <pooka%NetBSD.org@localhost>
date:      Sun Jul 11 11:37:24 2010 +0000

description:
fd_hold() when creating new threads.  This makes the fd code use
multithreaded mode and actually work with a multithreaded process.

diffstat:

 sys/rump/librump/rumpkern/rump.c |  8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diffs (36 lines):

diff -r fd79e92ecbff -r fa27ac15a8ab sys/rump/librump/rumpkern/rump.c
--- a/sys/rump/librump/rumpkern/rump.c  Sun Jul 11 11:33:47 2010 +0000
+++ b/sys/rump/librump/rumpkern/rump.c  Sun Jul 11 11:37:24 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: rump.c,v 1.179 2010/06/12 07:13:54 pooka Exp $ */
+/*     $NetBSD: rump.c,v 1.180 2010/07/11 11:37:24 pooka Exp $ */
 
 /*
  * Copyright (c) 2007 Antti Kantee.  All Rights Reserved.
@@ -28,7 +28,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rump.c,v 1.179 2010/06/12 07:13:54 pooka Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rump.c,v 1.180 2010/07/11 11:37:24 pooka Exp $");
 
 #include <sys/systm.h>
 #define ELFSIZE ARCH_ELFSIZE
@@ -538,6 +538,8 @@
        l->l_proc = p;
        l->l_lid = lid;
        l->l_fd = p->p_fd;
+       if (pid == 0)
+               fd_hold(l);
        l->l_cpu = NULL;
        l->l_target_cpu = rump_cpu;
        lwp_initspecific(l);
@@ -578,6 +580,8 @@
                kmem_free(p, sizeof(*p));
 
                atomic_dec_uint(&nprocs);
+       } else {
+               fd_free();
        }
        KASSERT((l->l_flag & LW_WEXIT) == 0);
        l->l_flag |= LW_WEXIT;