external/gpl2/lvm2/dist/include/lv_alloc.h

   1 /*      $NetBSD$        */
   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