swap_pager.h (bf25be48a512ea4d880d73c4c7cb84133ebc22d5) swap_pager.h (cd41fc123ea3ae3bdc43c65f4fcdeb07f27059f8)
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.

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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 * $Id: swap_pager.h,v 1.8 1995/07/16 13:28:35 davidg Exp $
39 * $Id: swap_pager.h,v 1.9 1995/08/16 16:14:25 bde Exp $
40 */
41
42/*
43 * Modifications to the block allocation data structure by John S. Dyson
44 * 18 Dec 93.
45 */
46
47#ifndef _SWAP_PAGER_

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60 unsigned short swb_valid; /* bitmask for valid pages */
61 unsigned short swb_locked; /* block locked */
62 int swb_block[SWB_NPAGES]; /* unfortunately int instead of daddr_t */
63};
64typedef struct swblock *sw_blk_t;
65
66#ifdef KERNEL
67extern struct pagerlst swap_pager_un_object_list;
40 */
41
42/*
43 * Modifications to the block allocation data structure by John S. Dyson
44 * 18 Dec 93.
45 */
46
47#ifndef _SWAP_PAGER_

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60 unsigned short swb_valid; /* bitmask for valid pages */
61 unsigned short swb_locked; /* block locked */
62 int swb_block[SWB_NPAGES]; /* unfortunately int instead of daddr_t */
63};
64typedef struct swblock *sw_blk_t;
65
66#ifdef KERNEL
67extern struct pagerlst swap_pager_un_object_list;
68extern int swap_pager_full;
68
69void swap_pager_init __P((void));
70vm_object_t swap_pager_alloc __P((void *, vm_size_t, vm_prot_t, vm_offset_t));
71void swap_pager_dealloc __P((vm_object_t));
72int swap_pager_getpages __P((vm_object_t, vm_page_t *, int, int));
73int swap_pager_putpages __P((vm_object_t, vm_page_t *, int, boolean_t, int *));
74boolean_t swap_pager_haspage __P((vm_object_t, vm_offset_t, int *, int *));
75void swap_pager_sync __P((void));
76void swap_pager_iodone __P((struct buf *));
77int swap_pager_swp_alloc __P((vm_object_t, int));
78void swap_pager_copy __P((vm_object_t, vm_offset_t, vm_object_t, vm_offset_t, vm_offset_t));
79void swap_pager_freespace __P((vm_object_t, vm_offset_t, vm_offset_t));
80void swap_pager_swap_init __P((void));
81#endif
82
83#endif /* _SWAP_PAGER_ */
69
70void swap_pager_init __P((void));
71vm_object_t swap_pager_alloc __P((void *, vm_size_t, vm_prot_t, vm_offset_t));
72void swap_pager_dealloc __P((vm_object_t));
73int swap_pager_getpages __P((vm_object_t, vm_page_t *, int, int));
74int swap_pager_putpages __P((vm_object_t, vm_page_t *, int, boolean_t, int *));
75boolean_t swap_pager_haspage __P((vm_object_t, vm_offset_t, int *, int *));
76void swap_pager_sync __P((void));
77void swap_pager_iodone __P((struct buf *));
78int swap_pager_swp_alloc __P((vm_object_t, int));
79void swap_pager_copy __P((vm_object_t, vm_offset_t, vm_object_t, vm_offset_t, vm_offset_t));
80void swap_pager_freespace __P((vm_object_t, vm_offset_t, vm_offset_t));
81void swap_pager_swap_init __P((void));
82#endif
83
84#endif /* _SWAP_PAGER_ */