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author | peter <peter@FreeBSD.org> | 1996-02-23 18:49:25 +0000 |
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committer | peter <peter@FreeBSD.org> | 1996-02-23 18:49:25 +0000 |
commit | 5239b23b5dd3a758a93e0c2186e188e829e7ba19 (patch) | |
tree | 8062bc6b4973f0a1762ce55c879b8c3019d7662e /sys/vm/vm_extern.h | |
parent | 834adf89dc86160b3de01b8991acc8ec96028a47 (diff) | |
download | FreeBSD-src-5239b23b5dd3a758a93e0c2186e188e829e7ba19.zip FreeBSD-src-5239b23b5dd3a758a93e0c2186e188e829e7ba19.tar.gz |
kern_descrip.c: add fdshare()/fdcopy()
kern_fork.c: add the tiny bit of code for rfork operation.
kern/sysv_*: shmfork() takes one less arg, it was never used.
sys/shm.h: drop "isvfork" arg from shmfork() prototype
sys/param.h: declare rfork args.. (this is where OpenBSD put it..)
sys/filedesc.h: protos for fdshare/fdcopy.
vm/vm_mmap.c: add minherit code, add rounding to mmap() type args where
it makes sense.
vm/*: drop unused isvfork arg.
Note: this rfork() implementation copies the address space mappings,
it does not connect the mappings together. ie: once the two processes
have split, the pages may be shared, but the address space is not. If one
does a mmap() etc, it does not appear in the other. This makes it not
useful for pthreads, but it is useful in it's own right for having
light-weight threads in a static shared address space.
Obtained from: Original by Ron Minnich, extended by OpenBSD
Diffstat (limited to 'sys/vm/vm_extern.h')
-rw-r--r-- | sys/vm/vm_extern.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/vm/vm_extern.h b/sys/vm/vm_extern.h index c6b3067..b0d7480 100644 --- a/sys/vm/vm_extern.h +++ b/sys/vm/vm_extern.h @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * @(#)vm_extern.h 8.2 (Berkeley) 1/12/94 - * $Id: vm_extern.h,v 1.22 1995/12/14 09:54:55 phk Exp $ + * $Id: vm_extern.h,v 1.23 1996/02/04 22:08:57 dyson Exp $ */ #ifndef _VM_EXTERN_H_ @@ -88,7 +88,7 @@ int vm_fault __P((vm_map_t, vm_offset_t, vm_prot_t, boolean_t)); void vm_fault_copy_entry __P((vm_map_t, vm_map_t, vm_map_entry_t, vm_map_entry_t)); void vm_fault_unwire __P((vm_map_t, vm_offset_t, vm_offset_t)); int vm_fault_wire __P((vm_map_t, vm_offset_t, vm_offset_t)); -int vm_fork __P((struct proc *, struct proc *, int)); +int vm_fork __P((struct proc *, struct proc *)); void vm_map_print __P((/* db_expr_t */ int, boolean_t, /* db_expr_t */ int, char *)); int vm_mmap __P((vm_map_t, vm_offset_t *, vm_size_t, vm_prot_t, vm_prot_t, int, caddr_t, vm_ooffset_t)); vm_offset_t vm_page_alloc_contig __P((vm_offset_t, vm_offset_t, vm_offset_t, vm_offset_t)); |