diff options
Diffstat (limited to 'sys/vm/vm_kern.c')
| -rw-r--r-- | sys/vm/vm_kern.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/sys/vm/vm_kern.c b/sys/vm/vm_kern.c index 8e9ab76..5a0eb4d 100644 --- a/sys/vm/vm_kern.c +++ b/sys/vm/vm_kern.c @@ -172,6 +172,8 @@ kmem_alloc_attr(vmem_t *vmem, vm_size_t size, int flags, vm_paddr_t low, return (0); offset = addr - VM_MIN_KERNEL_ADDRESS; pflags = malloc2vm_flags(flags) | VM_ALLOC_NOBUSY | VM_ALLOC_WIRED; + pflags &= ~(VM_ALLOC_NOWAIT | VM_ALLOC_WAITOK | VM_ALLOC_WAITFAIL); + pflags |= VM_ALLOC_NOWAIT; VM_OBJECT_WLOCK(object); for (i = 0; i < size; i += PAGE_SIZE) { tries = 0; @@ -227,6 +229,8 @@ kmem_alloc_contig(struct vmem *vmem, vm_size_t size, int flags, vm_paddr_t low, return (0); offset = addr - VM_MIN_KERNEL_ADDRESS; pflags = malloc2vm_flags(flags) | VM_ALLOC_NOBUSY | VM_ALLOC_WIRED; + pflags &= ~(VM_ALLOC_NOWAIT | VM_ALLOC_WAITOK | VM_ALLOC_WAITFAIL); + pflags |= VM_ALLOC_NOWAIT; npages = atop(size); VM_OBJECT_WLOCK(object); tries = 0; @@ -338,10 +342,13 @@ kmem_back(vm_object_t object, vm_offset_t addr, vm_size_t size, int flags) offset = addr - VM_MIN_KERNEL_ADDRESS; pflags = malloc2vm_flags(flags) | VM_ALLOC_NOBUSY | VM_ALLOC_WIRED; + pflags &= ~(VM_ALLOC_NOWAIT | VM_ALLOC_WAITOK | VM_ALLOC_WAITFAIL); + if (flags & M_WAITOK) + pflags |= VM_ALLOC_WAITFAIL; i = 0; -retry: VM_OBJECT_WLOCK(object); +retry: mpred = vm_radix_lookup_le(&object->rtree, atop(offset + i)); for (; i < size; i += PAGE_SIZE, mpred = m) { m = vm_page_alloc_after(object, atop(offset + i), pflags, @@ -353,11 +360,9 @@ retry: * aren't on any queues. */ if (m == NULL) { - VM_OBJECT_WUNLOCK(object); - if ((flags & M_NOWAIT) == 0) { - VM_WAIT; + if ((flags & M_NOWAIT) == 0) goto retry; - } + VM_OBJECT_WUNLOCK(object); kmem_unback(object, addr, i); return (KERN_NO_SPACE); } |
