diff options
Diffstat (limited to 'sys/uvm/uvm_unix.c')
| -rw-r--r-- | sys/uvm/uvm_unix.c | 31 |
1 files changed, 14 insertions, 17 deletions
diff --git a/sys/uvm/uvm_unix.c b/sys/uvm/uvm_unix.c index 44863db3e2d..a2fde83db35 100644 --- a/sys/uvm/uvm_unix.c +++ b/sys/uvm/uvm_unix.c @@ -1,5 +1,5 @@ -/* $OpenBSD: uvm_unix.c,v 1.17 2001/11/07 02:55:51 art Exp $ */ -/* $NetBSD: uvm_unix.c,v 1.18 2000/09/13 15:00:25 thorpej Exp $ */ +/* $OpenBSD: uvm_unix.c,v 1.18 2001/11/28 13:47:40 art Exp $ */ +/* $NetBSD: uvm_unix.c,v 1.20 2001/03/19 02:25:33 simonb Exp $ */ /* * Copyright (c) 1997 Charles D. Cranor and Washington University. @@ -78,7 +78,7 @@ sys_obreak(p, v, retval) struct vmspace *vm = p->p_vmspace; vaddr_t new, old; ssize_t diff; - int rv; + int error; old = (vaddr_t)vm->vm_daddr; new = round_page((vaddr_t)SCARG(uap, nsize)); @@ -95,26 +95,23 @@ sys_obreak(p, v, retval) * grow or shrink? */ if (diff > 0) { - rv = uvm_map(&vm->vm_map, &old, diff, NULL, UVM_UNKNOWN_OFFSET, - 0, UVM_MAPFLAG(UVM_PROT_ALL, UVM_PROT_ALL, UVM_INH_COPY, + error = uvm_map(&vm->vm_map, &old, diff, NULL, + UVM_UNKNOWN_OFFSET, 0, + UVM_MAPFLAG(UVM_PROT_ALL, UVM_PROT_ALL, UVM_INH_COPY, UVM_ADV_NORMAL, UVM_FLAG_AMAPPAD|UVM_FLAG_FIXED| UVM_FLAG_OVERLAY|UVM_FLAG_COPYONW)); - if (rv == KERN_SUCCESS) { - vm->vm_dsize += atop(diff); - return (0); + if (error) { + uprintf("sbrk: grow %ld failed, error = %d\n", + (long)diff, error); + return error; } + vm->vm_dsize += atop(diff); } else { - rv = uvm_deallocate(&vm->vm_map, new, -diff); - if (rv == KERN_SUCCESS) { - vm->vm_dsize -= atop(-diff); - return (0); - } + uvm_deallocate(&vm->vm_map, new, -diff); + vm->vm_dsize -= atop(-diff); } - uprintf("sbrk: %s %ld failed, return = %d\n", - diff > 0 ? "grow" : "shrink", - (long)(diff > 0 ? diff : -diff), rv); - return (ENOMEM); + return (0); } /* |