1 /*	$NetBSD: lv_alloc.h,v 1.1.1.2 2009/02/18 11:17:09 haad Exp $	*/
2 
3 /*
4  * Copyright (C) 2003-2004 Sistina Software, Inc. All rights reserved.
5  * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
6  *
7  * This file is part of LVM2.
8  *
9  * This copyrighted material is made available to anyone wishing to use,
10  * modify, copy, or redistribute it subject to the terms and conditions
11  * of the GNU Lesser General Public License v.2.1.
12  *
13  * You should have received a copy of the GNU Lesser General Public License
14  * along with this program; if not, write to the Free Software Foundation,
15  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
16  */
17 
18 #ifndef _LVM_LV_ALLOC_H
19 
20 struct lv_segment *alloc_lv_segment(struct dm_pool *mem,
21 				    const struct segment_type *segtype,
22 				    struct logical_volume *lv,
23 				    uint32_t le, uint32_t len,
24 				    uint32_t status,
25 				    uint32_t stripe_size,
26 				    struct logical_volume *log_lv,
27 				    uint32_t area_count,
28 				    uint32_t area_len,
29 				    uint32_t chunk_size,
30 				    uint32_t region_size,
31 				    uint32_t extents_copied);
32 
33 struct lv_segment *alloc_snapshot_seg(struct logical_volume *lv,
34 				      uint32_t status, uint32_t old_le_count);
35 
36 int set_lv_segment_area_pv(struct lv_segment *seg, uint32_t area_num,
37 			   struct physical_volume *pv, uint32_t pe);
38 int set_lv_segment_area_lv(struct lv_segment *seg, uint32_t area_num,
39 			   struct logical_volume *lv, uint32_t le,
40 			   uint32_t flags);
41 int move_lv_segment_area(struct lv_segment *seg_to, uint32_t area_to,
42 			 struct lv_segment *seg_from, uint32_t area_from);
43 void release_lv_segment_area(struct lv_segment *seg, uint32_t s,
44 			     uint32_t area_reduction);
45 
46 struct alloc_handle;
47 struct alloc_handle *allocate_extents(struct volume_group *vg,
48 				      struct logical_volume *lv,
49                                       const struct segment_type *segtype,
50                                       uint32_t stripes,
51                                       uint32_t mirrors, uint32_t log_count,
52 				      uint32_t log_region_size, uint32_t extents,
53                                       struct dm_list *allocatable_pvs,
54 				      alloc_policy_t alloc,
55 				      struct dm_list *parallel_areas);
56 
57 int lv_add_segment(struct alloc_handle *ah,
58 		   uint32_t first_area, uint32_t num_areas,
59 		   struct logical_volume *lv,
60                    const struct segment_type *segtype,
61                    uint32_t stripe_size,
62                    uint32_t status,
63 		   uint32_t region_size,
64                    struct logical_volume *log_lv);
65 
66 int lv_add_mirror_areas(struct alloc_handle *ah,
67 			struct logical_volume *lv, uint32_t le,
68 			uint32_t region_size);
69 int lv_add_mirror_lvs(struct logical_volume *lv,
70 		      struct logical_volume **sub_lvs,
71 		      uint32_t num_extra_areas,
72 		      uint32_t status, uint32_t region_size);
73 
74 int lv_add_log_segment(struct alloc_handle *ah, struct logical_volume *log_lv);
75 int lv_add_virtual_segment(struct logical_volume *lv, uint32_t status,
76                            uint32_t extents, const struct segment_type *segtype);
77 
78 void alloc_destroy(struct alloc_handle *ah);
79 
80 struct dm_list *build_parallel_areas_from_lv(struct cmd_context *cmd,
81 					  struct logical_volume *lv);
82 
83 #endif
84