diff options
Diffstat (limited to 'sys/kern/subr_trap.c')
| -rw-r--r-- | sys/kern/subr_trap.c | 44 |
1 files changed, 15 insertions, 29 deletions
diff --git a/sys/kern/subr_trap.c b/sys/kern/subr_trap.c index d9597df..5ff51fd 100644 --- a/sys/kern/subr_trap.c +++ b/sys/kern/subr_trap.c @@ -743,16 +743,11 @@ trap_pfault(frame, usermode, eva) * a growable stack region, or if the stack * growth succeeded. */ - if (!grow_stack (p, va)) { + if (!grow_stack (p, va)) rv = KERN_FAILURE; - PROC_LOCK(p); - --p->p_lock; - PROC_UNLOCK(p); - goto nogo; - } - - /* Fault in the user page: */ - rv = vm_fault(map, va, ftype, + else + /* Fault in the user page: */ + rv = vm_fault(map, va, ftype, (ftype & VM_PROT_WRITE) ? VM_FAULT_DIRTY : VM_FAULT_NORMAL); @@ -864,16 +859,11 @@ trap_pfault(frame, usermode, eva) * a growable stack region, or if the stack * growth succeeded. */ - if (!grow_stack (p, va)) { + if (!grow_stack (p, va)) rv = KERN_FAILURE; - PROC_LOCK(p); - --p->p_lock; - PROC_UNLOCK(p); - goto nogo; - } - - /* Fault in the user page: */ - rv = vm_fault(map, va, ftype, + else + /* Fault in the user page: */ + rv = vm_fault(map, va, ftype, (ftype & VM_PROT_WRITE) ? VM_FAULT_DIRTY : VM_FAULT_NORMAL); @@ -1044,17 +1034,13 @@ int trapwrite(addr) ++p->p_lock; PROC_UNLOCK(p); - if (!grow_stack (p, va)) { - PROC_LOCK(p); - --p->p_lock; - PROC_UNLOCK(p); - return (1); - } - - /* - * fault the data page - */ - rv = vm_fault(&vm->vm_map, va, VM_PROT_WRITE, VM_FAULT_DIRTY); + if (!grow_stack (p, va)) + rv = KERN_FAILURE; + else + /* + * fault the data page + */ + rv = vm_fault(&vm->vm_map, va, VM_PROT_WRITE, VM_FAULT_DIRTY); PROC_LOCK(p); --p->p_lock; |
