swap_pager.h (108600) | swap_pager.h (108602) |
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1/* 2 * Copyright (c) 1990 University of Utah. 3 * Copyright (c) 1991 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * the Systems Programming Group of the University of Utah Computer 8 * Science Department. --- 22 unchanged lines hidden (view full) --- 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * from: @(#)swap_pager.h 7.1 (Berkeley) 12/5/90 | 1/* 2 * Copyright (c) 1990 University of Utah. 3 * Copyright (c) 1991 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * the Systems Programming Group of the University of Utah Computer 8 * Science Department. --- 22 unchanged lines hidden (view full) --- 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * from: @(#)swap_pager.h 7.1 (Berkeley) 12/5/90 |
39 * $FreeBSD: head/sys/vm/swap_pager.h 108600 2003-01-03 14:30:46Z phk $ | 39 * $FreeBSD: head/sys/vm/swap_pager.h 108602 2003-01-03 16:23:12Z phk $ |
40 */ 41 42/* 43 * Modifications to the block allocation data structure by John S. Dyson 44 * 18 Dec 93. 45 */ 46 47#ifndef _VM_SWAP_PAGER_H_ 48#define _VM_SWAP_PAGER_H_ 1 49 50/* | 40 */ 41 42/* 43 * Modifications to the block allocation data structure by John S. Dyson 44 * 18 Dec 93. 45 */ 46 47#ifndef _VM_SWAP_PAGER_H_ 48#define _VM_SWAP_PAGER_H_ 1 49 50/* |
51 * Swap device table 52 */ 53struct swdevt { 54 udev_t sw_dev; /* For quasibogus swapdev reporting */ 55 int sw_flags; 56 int sw_nblks; 57 int sw_used; 58 struct vnode *sw_vp; 59 dev_t sw_device; 60}; 61#define SW_FREED 0x01 62#define SW_SEQUENTIAL 0x02 63#define SW_CLOSING 0x04 64#define sw_freed sw_flags /* XXX compat */ 65 66#ifdef _KERNEL 67 68/* |
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51 * SWB_NPAGES must be a power of 2. It may be set to 1, 2, 4, 8, or 16 52 * pages per allocation. We recommend you stick with the default of 8. 53 * The 16-page limit is due to the radix code (kern/subr_blist.c). 54 */ 55#if !defined(SWB_NPAGES) 56#define SWB_NPAGES 8 57#endif 58 --- 14 unchanged lines hidden (view full) --- 73struct swblock { 74 struct swblock *swb_hnext; 75 vm_object_t swb_object; 76 vm_pindex_t swb_index; 77 int swb_count; 78 daddr_t swb_pages[SWAP_META_PAGES]; 79}; 80 | 69 * SWB_NPAGES must be a power of 2. It may be set to 1, 2, 4, 8, or 16 70 * pages per allocation. We recommend you stick with the default of 8. 71 * The 16-page limit is due to the radix code (kern/subr_blist.c). 72 */ 73#if !defined(SWB_NPAGES) 74#define SWB_NPAGES 8 75#endif 76 --- 14 unchanged lines hidden (view full) --- 91struct swblock { 92 struct swblock *swb_hnext; 93 vm_object_t swb_object; 94 vm_pindex_t swb_index; 95 int swb_count; 96 daddr_t swb_pages[SWAP_META_PAGES]; 97}; 98 |
81#ifdef _KERNEL | |
82extern struct pagerlst swap_pager_un_object_list; 83extern int swap_pager_full; 84extern struct blist *swapblist; 85extern struct uma_zone *swap_zone; 86extern int nswap_lowat, nswap_hiwat; 87extern int dmmax, dmmax_mask; 88extern struct vnode *swapdev_vp; 89extern struct swdevt *swdevt; --- 30 unchanged lines hidden --- | 99extern struct pagerlst swap_pager_un_object_list; 100extern int swap_pager_full; 101extern struct blist *swapblist; 102extern struct uma_zone *swap_zone; 103extern int nswap_lowat, nswap_hiwat; 104extern int dmmax, dmmax_mask; 105extern struct vnode *swapdev_vp; 106extern struct swdevt *swdevt; --- 30 unchanged lines hidden --- |