diff options
| -rw-r--r-- | sys/kern/subr_uio.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/sys/kern/subr_uio.c b/sys/kern/subr_uio.c index d8fa68f..7a824c1 100644 --- a/sys/kern/subr_uio.c +++ b/sys/kern/subr_uio.c @@ -468,24 +468,26 @@ cloneuio(struct uio *uiop) int copyout_map(struct thread *td, vm_offset_t *addr, size_t sz) { - struct vmspace *vms = td->td_proc->p_vmspace; + struct vmspace *vms; int error; vm_size_t size; - - /* + + vms = td->td_proc->p_vmspace; + + /* * Map somewhere after heap in process memory. */ PROC_LOCK(td->td_proc); - *addr = round_page((vm_offset_t)vms->vm_daddr + + *addr = round_page((vm_offset_t)vms->vm_daddr + lim_max(td->td_proc, RLIMIT_DATA)); PROC_UNLOCK(td->td_proc); /* round size up to page boundry */ - size = (vm_size_t) round_page(sz); - - error = vm_mmap(&vms->vm_map, addr, size, PROT_READ | PROT_WRITE, + size = (vm_size_t)round_page(sz); + + error = vm_mmap(&vms->vm_map, addr, size, PROT_READ | PROT_WRITE, VM_PROT_ALL, MAP_PRIVATE | MAP_ANON, OBJT_DEFAULT, NULL, 0); - + return (error); } @@ -497,12 +499,12 @@ copyout_unmap(struct thread *td, vm_offset_t addr, size_t sz) { vm_map_t map; vm_size_t size; - + if (sz == 0) return (0); map = &td->td_proc->p_vmspace->vm_map; - size = (vm_size_t) round_page(sz); + size = (vm_size_t)round_page(sz); if (!vm_map_remove(map, addr, addr + size)) return (EINVAL); |
