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Move the call of cpu_wait() out of the wait4() functions, and into the

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body of reaper(), right before the call to uvm_exit().  cpu_wait() must
be done before uvm_exit() because the resources it frees might be located
in the PCB.
This commit is contained in:
thorpej 1999-07-20 21:54:05 +00:00
parent 963921febe
commit 32e1fd0d03
3 changed files with 11 additions and 21 deletions
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8
sys/compat/netbsd32/netbsd32_netbsd.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: netbsd32_netbsd.c,v 1.15 1999/06/17 15:47:23 thorpej Exp $ */
/* $NetBSD: netbsd32_netbsd.c,v 1.16 1999/07/20 21:54:05 thorpej Exp $ */
/*
* Copyright (c) 1998 Matthew R. Green
@ -748,12 +748,6 @@ loop:
if (p->p_textvp)
vrele(p->p_textvp);
/*
* Give machine-dependent layer a chance
* to free anything that cpu_exit couldn't
* release while still running in process context.
*/
cpu_wait(p);
pool_put(&proc_pool, p);
nprocs--;
return (0);

8
sys/compat/svr4/svr4_misc.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: svr4_misc.c,v 1.77 1999/05/08 01:23:01 kleink Exp $ */
/* $NetBSD: svr4_misc.c,v 1.78 1999/07/20 21:54:06 thorpej Exp $ */
/*-
* Copyright (c) 1994 The NetBSD Foundation, Inc.
@ -1218,12 +1218,6 @@ loop:
if (q->p_textvp)
vrele(q->p_textvp);
/*
* Give machine-dependent layer a chance
* to free anything that cpu_exit couldn't
* release while still running in process context.
*/
cpu_wait(q);
pool_put(&proc_pool, q);
nprocs--;
return 0;

16
sys/kern/kern_exit.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: kern_exit.c,v 1.70 1999/07/15 23:18:43 thorpej Exp $ */
/* $NetBSD: kern_exit.c,v 1.71 1999/07/20 21:54:05 thorpej Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -366,6 +366,14 @@ reaper()
/* Remove us from the deadproc list. */
LIST_REMOVE(p, p_list);
/*
* Give machine-dependent code a chance to free any
* resources it couldn't free while still running on
* that process's context. This must be done before
* uvm_exit(), in case these resources are in the PCB.
*/
cpu_wait(p);
/*
* Free the VM resources we're still holding on to.
* We must do this from a valid thread because doing
@ -490,12 +498,6 @@ loop:
if (p->p_textvp)
vrele(p->p_textvp);
/*
* Give machine-dependent layer a chance
* to free anything that cpu_exit couldn't
* release while still running in process context.
*/
cpu_wait(p);
pool_put(&proc_pool, p);
nprocs--;
return (0);