| vm_fault.c (9a89977bf633d71760fa57a7542ef0f7fc0349e5) | vm_fault.c (40cbcb996c0827dc5af93744a86c22198cac5f41) |
|---|---|
| 1/*- 2 * SPDX-License-Identifier: (BSD-4-Clause AND MIT-CMU) 3 * 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * Copyright (c) 1994 John S. Dyson 7 * All rights reserved. 8 * Copyright (c) 1994 David Greenman --- 1716 unchanged lines hidden (view full) --- 1725 * When "fs->first_object" is a shadow object, the pages in the backing object 1726 * that precede the faulting pindex are deactivated by vm_fault(). So, this 1727 * function must only be concerned with pages in the first object. 1728 */ 1729static void 1730vm_fault_dontneed(const struct faultstate *fs, vm_offset_t vaddr, int ahead) 1731{ 1732 vm_map_entry_t entry; | 1/*- 2 * SPDX-License-Identifier: (BSD-4-Clause AND MIT-CMU) 3 * 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * Copyright (c) 1994 John S. Dyson 7 * All rights reserved. 8 * Copyright (c) 1994 David Greenman --- 1716 unchanged lines hidden (view full) --- 1725 * When "fs->first_object" is a shadow object, the pages in the backing object 1726 * that precede the faulting pindex are deactivated by vm_fault(). So, this 1727 * function must only be concerned with pages in the first object. 1728 */ 1729static void 1730vm_fault_dontneed(const struct faultstate *fs, vm_offset_t vaddr, int ahead) 1731{ 1732 vm_map_entry_t entry; |
| 1733 vm_object_t first_object, object; | 1733 vm_object_t first_object; |
| 1734 vm_offset_t end, start; 1735 vm_page_t m, m_next; 1736 vm_pindex_t pend, pstart; 1737 vm_size_t size; 1738 | 1734 vm_offset_t end, start; 1735 vm_page_t m, m_next; 1736 vm_pindex_t pend, pstart; 1737 vm_size_t size; 1738 |
| 1739 object = fs->object; 1740 VM_OBJECT_ASSERT_UNLOCKED(object); | 1739 VM_OBJECT_ASSERT_UNLOCKED(fs->object); |
| 1741 first_object = fs->first_object; 1742 /* Neither fictitious nor unmanaged pages can be reclaimed. */ 1743 if ((first_object->flags & (OBJ_FICTITIOUS | OBJ_UNMANAGED)) == 0) { 1744 VM_OBJECT_RLOCK(first_object); 1745 size = VM_FAULT_DONTNEED_MIN; 1746 if (MAXPAGESIZES > 1 && size < pagesizes[1]) 1747 size = pagesizes[1]; 1748 end = rounddown2(vaddr, size); --- 433 unchanged lines hidden --- | 1740 first_object = fs->first_object; 1741 /* Neither fictitious nor unmanaged pages can be reclaimed. */ 1742 if ((first_object->flags & (OBJ_FICTITIOUS | OBJ_UNMANAGED)) == 0) { 1743 VM_OBJECT_RLOCK(first_object); 1744 size = VM_FAULT_DONTNEED_MIN; 1745 if (MAXPAGESIZES > 1 && size < pagesizes[1]) 1746 size = pagesizes[1]; 1747 end = rounddown2(vaddr, size); --- 433 unchanged lines hidden --- |