diff options
| author |   tedu <tedu@openbsd.org> | 2004-04-02 19:08:58 +0000 |
|---|---|---|
| committer | tedu <tedu@openbsd.org> | 2004-04-02 19:08:58 +0000 |
| commit | f40a091c8af42940d612a106d1511d3117939c3c (patch) | |
| tree | ee11dc484e1bdf68f94d5d582fb1c01e42791188 /sys/kern/kern_fork.c | |
| parent | Document --line-buffered (diff) | |
| download | wireguard-openbsd-f40a091c8af42940d612a106d1511d3117939c3c.tar.xz wireguard-openbsd-f40a091c8af42940d612a106d1511d3117939c3c.zip | |
rfork(RFMEM) shares complete vmspace. much more useful, and in line with
other projects' implementations.
Diffstat (limited to 'sys/kern/kern_fork.c')
| -rw-r--r-- | sys/kern/kern_fork.c | 22 |
1 files changed, 3 insertions, 19 deletions
diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c index f137d22b431..cbcbc568c91 100644 --- a/sys/kern/kern_fork.c +++ b/sys/kern/kern_fork.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_fork.c,v 1.63 2003/09/23 20:26:18 millert Exp $ */ +/* $OpenBSD: kern_fork.c,v 1.64 2004/04/02 19:08:58 tedu Exp $ */ /* $NetBSD: kern_fork.c,v 1.29 1996/02/09 18:59:34 christos Exp $ */ /* @@ -44,6 +44,7 @@ #include <sys/malloc.h> #include <sys/mount.h> #include <sys/proc.h> +#include <sys/exec.h> #include <sys/resourcevar.h> #include <sys/signalvar.h> #include <sys/vnode.h> @@ -118,7 +119,7 @@ sys_rfork(struct proc *p, void *v, register_t *retval) flags |= FORK_NOZOMBIE; if (rforkflags & RFMEM) - flags |= FORK_VMNOSTACK; + flags |= FORK_SHAREVM; return (fork1(p, SIGCHLD, flags, NULL, 0, NULL, NULL, retval)); } @@ -292,23 +293,6 @@ fork1(struct proc *p1, int exitsig, int flags, void *stack, size_t stacksize, */ PHOLD(p1); - if (flags & FORK_VMNOSTACK) { - /* share everything, but ... */ - uvm_map_inherit(&p1->p_vmspace->vm_map, - VM_MIN_ADDRESS, VM_MAXUSER_ADDRESS, - MAP_INHERIT_SHARE); - /* ... don't share stack */ -#ifdef MACHINE_STACK_GROWS_UP - uvm_map_inherit(&p1->p_vmspace->vm_map, - USRSTACK, USRSTACK + MAXSSIZ, - MAP_INHERIT_COPY); -#else - uvm_map_inherit(&p1->p_vmspace->vm_map, - USRSTACK - MAXSSIZ, USRSTACK, - MAP_INHERIT_COPY); -#endif - } - p2->p_addr = (struct user *)uaddr; /* |