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      1 /*	$NetBSD: lv_alloc.h,v 1.1.1.2 2009/02/18 11:16:47 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