mirror of
git://sourceware.org/git/lvm2.git
synced 2025-03-10 16:58:47 +03:00
1bf90dac77
This reverts commit 1e4462dbfbd2bbe3590936df24b3ccd83110b158 in favour of an enhanced solution avoiding changes in liblvm completetly by checking the target versions in libdm and emitting the respective parameter lines.
338 lines
16 KiB
C
338 lines
16 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2016 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _SEGTYPES_H
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#define _SEGTYPES_H
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#include "metadata-exported.h"
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struct segtype_handler;
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struct cmd_context;
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struct dm_config_tree;
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struct lv_segment;
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struct lv_activate_opts;
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struct formatter;
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struct dm_config_node;
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struct dev_manager;
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/* Feature flags */
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#define SEG_CAN_SPLIT (1ULL << 0)
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#define SEG_AREAS_STRIPED (1ULL << 1)
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#define SEG_AREAS_MIRRORED (1ULL << 2)
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#define SEG_SNAPSHOT (1ULL << 3)
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#define SEG_FORMAT1_SUPPORT (1ULL << 4)
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#define SEG_VIRTUAL (1ULL << 5)
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#define SEG_CANNOT_BE_ZEROED (1ULL << 6)
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#define SEG_MONITORED (1ULL << 7)
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#define SEG_REPLICATOR (1ULL << 8)
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#define SEG_REPLICATOR_DEV (1ULL << 9)
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#define SEG_RAID (1ULL << 10)
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#define SEG_THIN_POOL (1ULL << 11)
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#define SEG_THIN_VOLUME (1ULL << 12)
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#define SEG_CACHE (1ULL << 13)
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#define SEG_CACHE_POOL (1ULL << 14)
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#define SEG_MIRROR (1ULL << 15)
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#define SEG_ONLY_EXCLUSIVE (1ULL << 16) /* In cluster only exlusive activation */
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#define SEG_CAN_ERROR_WHEN_FULL (1ULL << 17)
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#define SEG_RAID0 (1ULL << 18)
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#define SEG_RAID0_META (1ULL << 19)
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#define SEG_RAID1 (1ULL << 20)
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#define SEG_RAID10_NEAR (1ULL << 21)
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#define SEG_RAID10 SEG_RAID10_NEAR
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#define SEG_RAID4 (1ULL << 22)
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#define SEG_RAID5_N (1ULL << 23)
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#define SEG_RAID5_LA (1ULL << 24)
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#define SEG_RAID5_LS (1ULL << 25)
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#define SEG_RAID5_RA (1ULL << 26)
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#define SEG_RAID5_RS (1ULL << 27)
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#define SEG_RAID5 SEG_RAID5_LS
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#define SEG_RAID6_NC (1ULL << 28)
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#define SEG_RAID6_NR (1ULL << 29)
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#define SEG_RAID6_ZR (1ULL << 30)
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#define SEG_RAID6_LA_6 (1ULL << 31)
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#define SEG_RAID6_LS_6 (1ULL << 32)
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#define SEG_RAID6_RA_6 (1ULL << 33)
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#define SEG_RAID6_RS_6 (1ULL << 34)
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#define SEG_RAID6_N_6 (1ULL << 35)
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#define SEG_RAID6 SEG_RAID6_ZR
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#define SEG_STRIPED_TARGET (1ULL << 39)
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#define SEG_UNKNOWN (1ULL << 63)
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#define SEG_TYPE_NAME_LINEAR "linear"
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#define SEG_TYPE_NAME_STRIPED "striped"
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#define SEG_TYPE_NAME_MIRROR "mirror"
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#define SEG_TYPE_NAME_SNAPSHOT "snapshot"
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#define SEG_TYPE_NAME_THIN "thin"
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#define SEG_TYPE_NAME_THIN_POOL "thin-pool"
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#define SEG_TYPE_NAME_CACHE "cache"
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#define SEG_TYPE_NAME_CACHE_POOL "cache-pool"
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#define SEG_TYPE_NAME_ERROR "error"
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#define SEG_TYPE_NAME_FREE "free"
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#define SEG_TYPE_NAME_ZERO "zero"
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#define SEG_TYPE_NAME_RAID "raid"
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#define SEG_TYPE_NAME_RAID0 "raid0"
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#define SEG_TYPE_NAME_RAID0_META "raid0_meta"
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#define SEG_TYPE_NAME_RAID1 "raid1"
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#define SEG_TYPE_NAME_RAID10 "raid10"
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#define SEG_TYPE_NAME_RAID4 "raid4"
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#define SEG_TYPE_NAME_RAID5 "raid5"
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#define SEG_TYPE_NAME_RAID5_N "raid5_n"
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#define SEG_TYPE_NAME_RAID5_LA "raid5_la"
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#define SEG_TYPE_NAME_RAID5_LS "raid5_ls"
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#define SEG_TYPE_NAME_RAID5_RA "raid5_ra"
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#define SEG_TYPE_NAME_RAID5_RS "raid5_rs"
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#define SEG_TYPE_NAME_RAID6 "raid6"
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#define SEG_TYPE_NAME_RAID6_NC "raid6_nc"
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#define SEG_TYPE_NAME_RAID6_NR "raid6_nr"
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#define SEG_TYPE_NAME_RAID6_ZR "raid6_zr"
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#define SEG_TYPE_NAME_RAID6_LA_6 "raid6_la_6"
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#define SEG_TYPE_NAME_RAID6_LS_6 "raid6_ls_6"
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#define SEG_TYPE_NAME_RAID6_RA_6 "raid6_ra_6"
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#define SEG_TYPE_NAME_RAID6_RS_6 "raid6_rs_6"
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#define SEG_TYPE_NAME_RAID6_N_6 "raid6_n_6"
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#define segtype_is_linear(segtype) (!strcmp(segtype->name, SEG_TYPE_NAME_LINEAR))
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#define segtype_is_striped_target(segtype) ((segtype)->flags & SEG_STRIPED_TARGET ? 1 : 0)
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#define segtype_is_cache(segtype) ((segtype)->flags & SEG_CACHE ? 1 : 0)
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#define segtype_is_cache_pool(segtype) ((segtype)->flags & SEG_CACHE_POOL ? 1 : 0)
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#define segtype_is_mirrored(segtype) ((segtype)->flags & SEG_AREAS_MIRRORED ? 1 : 0)
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#define segtype_is_mirror(segtype) ((segtype)->flags & SEG_MIRROR ? 1 : 0)
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#define segtype_is_pool(segtype) ((segtype)->flags & (SEG_CACHE_POOL | SEG_THIN_POOL) ? 1 : 0)
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#define segtype_is_raid0(segtype) ((segtype)->flags & SEG_RAID0 ? 1 : 0)
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#define segtype_is_raid0_meta(segtype) ((segtype)->flags & SEG_RAID0_META ? 1 : 0)
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#define segtype_is_any_raid0(segtype) ((segtype)->flags & (SEG_RAID0 | SEG_RAID0_META) ? 1 : 0)
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#define segtype_is_raid(segtype) ((segtype)->flags & SEG_RAID ? 1 : 0)
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#define segtype_is_raid1(segtype) ((segtype)->flags & SEG_RAID1 ? 1 : 0)
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#define segtype_is_raid4(segtype) ((segtype)->flags & SEG_RAID4 ? 1 : 0)
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#define segtype_is_any_raid5(segtype) ((segtype)->flags & \
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(SEG_RAID5_LS|SEG_RAID5_LA|SEG_RAID5_RS|SEG_RAID5_RA|SEG_RAID5_N) ? 1 : 0)
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#define segtype_is_raid5_n(segtype) ((segtype)->flags & SEG_RAID5_N ? 1 : 0)
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#define segtype_is_raid5_la(segtype) ((segtype)->flags & SEG_RAID5_LA ? 1 : 0)
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#define segtype_is_raid5_ra(segtype) ((segtype)->flags & SEG_RAID5_RA ? 1 : 0)
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#define segtype_is_raid5_ls(segtype) ((segtype)->flags & SEG_RAID5_LS ? 1 : 0)
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#define segtype_is_raid5_rs(segtype) ((segtype)->flags & SEG_RAID5_RS ? 1 : 0)
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#define segtype_is_any_raid6(segtype) ((segtype)->flags & \
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(SEG_RAID6_ZR|SEG_RAID6_NC|SEG_RAID6_NR| \
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SEG_RAID6_LA_6|SEG_RAID6_LS_6|SEG_RAID6_RA_6|SEG_RAID6_RS_6|SEG_RAID6_N_6) ? 1 : 0)
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#define segtype_is_raid6_nc(segtype) ((segtype)->flags & SEG_RAID6_NC ? 1 : 0)
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#define segtype_is_raid6_nr(segtype) ((segtype)->flags & SEG_RAID6_NR ? 1 : 0)
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#define segtype_is_raid6_n_6(segtype) ((segtype)->flags & SEG_RAID6_N_6 ? 1 : 0)
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#define segtype_is_raid6_zr(segtype) ((segtype)->flags & SEG_RAID6_ZR ? 1 : 0)
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#define segtype_is_raid6_ls_6(segtype) ((segtype)->flags & SEG_RAID6_LS_6 ? 1 : 0)
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#define segtype_is_raid6_rs_6(segtype) ((segtype)->flags & SEG_RAID6_RS_6 ? 1 : 0)
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#define segtype_is_raid6_la_6(segtype) ((segtype)->flags & SEG_RAID6_LA_6 ? 1 : 0)
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#define segtype_is_raid6_ra_6(segtype) ((segtype)->flags & SEG_RAID6_RA_6 ? 1 : 0)
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#define segtype_is_any_raid10(segtype) ((segtype)->flags & SEG_RAID10 ? 1 : 0)
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#define segtype_is_raid10(segtype) ((segtype)->flags & SEG_RAID10 ? 1 : 0)
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#define segtype_is_raid10_near(segtype) segtype_is_raid10(segtype)
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/* FIXME: once raid10_offset supported */
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#define segtype_is_raid10_offset(segtype) 0 // ((segtype)->flags & SEG_RAID10_OFFSET ? 1 : 0)
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#define segtype_is_raid_with_meta(segtype) (segtype_is_raid(segtype) && !segtype_is_raid0(segtype))
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#define segtype_is_striped_raid(segtype) (segtype_is_raid(segtype) && !segtype_is_raid1(segtype))
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#define segtype_is_reshapable_raid(segtype) ((segtype_is_striped_raid(segtype) && !segtype_is_any_raid0(segtype)) || segtype_is_raid10_near(segtype) || segtype_is_raid10_offset(segtype))
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#define segtype_is_snapshot(segtype) ((segtype)->flags & SEG_SNAPSHOT ? 1 : 0)
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#define segtype_is_striped(segtype) ((segtype)->flags & SEG_AREAS_STRIPED ? 1 : 0)
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#define segtype_is_thin(segtype) ((segtype)->flags & (SEG_THIN_POOL|SEG_THIN_VOLUME) ? 1 : 0)
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#define segtype_is_thin_pool(segtype) ((segtype)->flags & SEG_THIN_POOL ? 1 : 0)
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#define segtype_is_thin_volume(segtype) ((segtype)->flags & SEG_THIN_VOLUME ? 1 : 0)
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#define segtype_is_virtual(segtype) ((segtype)->flags & SEG_VIRTUAL ? 1 : 0)
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#define segtype_is_unknown(segtype) ((segtype)->flags & SEG_UNKNOWN ? 1 : 0)
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#define segtype_can_split(segtype) ((segtype)->flags & SEG_CAN_SPLIT ? 1 : 0)
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#define segtype_cannot_be_zeroed(segtype) ((segtype)->flags & SEG_CANNOT_BE_ZEROED ? 1 : 0)
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#define segtype_monitored(segtype) ((segtype)->flags & SEG_MONITORED ? 1 : 0)
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#define segtype_only_exclusive(segtype) ((segtype)->flags & SEG_ONLY_EXCLUSIVE ? 1 : 0)
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#define segtype_can_error_when_full(segtype) ((segtype)->flags & SEG_CAN_ERROR_WHEN_FULL ? 1 : 0)
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#define segtype_supports_stripe_size(segtype) \
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((segtype_is_striped(segtype) || segtype_is_mirror(segtype) || \
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segtype_is_cache(segtype) || segtype_is_cache_pool(segtype) || \
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segtype_is_thin(segtype) || segtype_is_snapshot(segtype) || \
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(segtype_is_raid(segtype) && !segtype_is_raid1(segtype))) ? 1 : 0)
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#define seg_is_striped_target(seg) segtype_is_striped_target((seg)->segtype)
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#define seg_is_cache(seg) segtype_is_cache((seg)->segtype)
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#define seg_is_cache_pool(seg) segtype_is_cache_pool((seg)->segtype)
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#define seg_is_used_cache_pool(seg) (seg_is_cache_pool(seg) && (!dm_list_empty(&(seg->lv)->segs_using_this_lv)))
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#define seg_is_linear(seg) (seg_is_striped(seg) && ((seg)->area_count == 1))
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#define seg_is_mirror(seg) segtype_is_mirror((seg)->segtype)
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#define seg_is_mirrored(seg) segtype_is_mirrored((seg)->segtype)
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#define seg_is_pool(seg) segtype_is_pool((seg)->segtype)
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#define seg_is_raid0(seg) segtype_is_raid0((seg)->segtype)
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#define seg_is_raid0_meta(seg) segtype_is_raid0_meta((seg)->segtype)
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#define seg_is_any_raid0(seg) segtype_is_any_raid0((seg)->segtype)
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#define seg_is_raid(seg) segtype_is_raid((seg)->segtype)
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#define seg_is_raid1(seg) segtype_is_raid1((seg)->segtype)
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#define seg_is_raid4(seg) segtype_is_raid4((seg)->segtype)
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#define seg_is_any_raid5(seg) segtype_is_any_raid5((seg)->segtype)
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#define seg_is_raid5_n(seg) segtype_is_raid5_n((seg)->segtype)
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#define seg_is_raid5_la(seg) segtype_is_raid5_la((seg)->segtype)
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#define seg_is_raid5_ra(seg) segtype_is_raid5_ra((seg)->segtype)
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#define seg_is_raid5_ls(seg) segtype_is_raid5_ls((seg)->segtype)
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#define seg_is_raid5_rs(seg) segtype_is_raid5_rs((seg)->segtype)
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#define seg_is_any_raid6(seg) segtype_is_any_raid6((seg)->segtype)
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#define seg_is_raid6_zr(seg) segtype_is_raid6_zr((seg)->segtype)
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#define seg_is_raid6_nr(seg) segtype_is_raid6_nr((seg)->segtype)
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#define seg_is_raid6_nc(seg) segtype_is_raid6_nc((seg)->segtype)
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#define seg_is_raid6_n_6(seg) segtype_is_raid6_n_6((seg)->segtype)
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#define seg_is_any_raid10(seg) segtype_is_any_raid10((seg)->segtype)
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#define seg_is_raid10(seg) segtype_is_raid10((seg)->segtype)
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#define seg_is_raid10_near(seg) segtype_is_raid10_near((seg)->segtype)
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#define seg_is_raid_with_meta(seg) segtype_is_raid_with_meta((seg)->segtype)
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#define seg_is_striped_raid(seg) segtype_is_striped_raid((seg)->segtype)
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#define seg_is_reshapable_raid(seg) segtype_is_reshapable_raid((seg)->segtype)
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#define seg_is_replicator(seg) ((seg)->segtype->flags & SEG_REPLICATOR ? 1 : 0)
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#define seg_is_replicator_dev(seg) ((seg)->segtype->flags & SEG_REPLICATOR_DEV ? 1 : 0)
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#define seg_is_snapshot(seg) segtype_is_snapshot((seg)->segtype)
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#define seg_is_striped(seg) segtype_is_striped((seg)->segtype)
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#define seg_is_thin(seg) segtype_is_thin((seg)->segtype)
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#define seg_is_thin_pool(seg) segtype_is_thin_pool((seg)->segtype)
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#define seg_is_thin_volume(seg) segtype_is_thin_volume((seg)->segtype)
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#define seg_is_virtual(seg) segtype_is_virtual((seg)->segtype)
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#define seg_unknown(seg) segtype_is_unknown((seg)->segtype)
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#define seg_can_split(seg) segtype_can_split((seg)->segtype)
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#define seg_cannot_be_zeroed(seg) segtype_cannot_be_zeroed((seg)->segtype)
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#define seg_monitored(seg) segtype_monitored((seg)->segtype)
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#define seg_only_exclusive(seg) segtype_only_exclusive((seg)->segtype)
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#define seg_can_error_when_full(seg) segtype_can_error_when_full((seg)->segtype)
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struct segment_type {
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struct dm_list list; /* Internal */
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uint64_t flags;
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uint32_t parity_devs; /* Parity drives required by segtype */
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struct segtype_handler *ops;
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const char *name;
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void *library; /* lvm_register_segtype() sets this. */
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void *private; /* For the segtype handler to use. */
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};
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struct segtype_handler {
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const char *(*name) (const struct lv_segment * seg);
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const char *(*target_name) (const struct lv_segment *seg,
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const struct lv_activate_opts *laopts);
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void (*display) (const struct lv_segment * seg);
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int (*text_export) (const struct lv_segment * seg,
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struct formatter * f);
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int (*text_import_area_count) (const struct dm_config_node * sn,
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uint32_t *area_count);
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int (*text_import) (struct lv_segment * seg,
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const struct dm_config_node * sn,
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struct dm_hash_table * pv_hash);
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int (*merge_segments) (struct lv_segment * seg1,
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struct lv_segment * seg2);
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int (*add_target_line) (struct dev_manager *dm, struct dm_pool *mem,
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struct cmd_context *cmd, void **target_state,
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struct lv_segment *seg,
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const struct lv_activate_opts *laopts,
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struct dm_tree_node *node, uint64_t len,
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uint32_t *pvmove_mirror_count);
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int (*target_status_compatible) (const char *type);
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int (*check_transient_status) (struct dm_pool *mem,
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struct lv_segment *seg, char *params);
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int (*target_percent) (void **target_state,
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dm_percent_t *percent,
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struct dm_pool * mem,
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struct cmd_context *cmd,
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struct lv_segment *seg, char *params,
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uint64_t *total_numerator,
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uint64_t *total_denominator);
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int (*target_present) (struct cmd_context *cmd,
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const struct lv_segment *seg,
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unsigned *attributes);
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int (*modules_needed) (struct dm_pool *mem,
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const struct lv_segment *seg,
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struct dm_list *modules);
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void (*destroy) (struct segment_type * segtype);
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int (*target_monitored) (struct lv_segment *seg, int *pending);
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int (*target_monitor_events) (struct lv_segment *seg, int events);
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int (*target_unmonitor_events) (struct lv_segment *seg, int events);
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};
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struct segment_type *get_segtype_from_string(struct cmd_context *cmd,
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const char *str);
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struct segment_type *get_segtype_from_flag(struct cmd_context *cmd,
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uint64_t flag);
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struct segtype_library;
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int lvm_register_segtype(struct segtype_library *seglib,
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struct segment_type *segtype);
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struct segment_type *init_striped_segtype(struct cmd_context *cmd);
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struct segment_type *init_zero_segtype(struct cmd_context *cmd);
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struct segment_type *init_error_segtype(struct cmd_context *cmd);
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struct segment_type *init_free_segtype(struct cmd_context *cmd);
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struct segment_type *init_unknown_segtype(struct cmd_context *cmd,
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const char *name);
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#define RAID_FEATURE_RAID10 (1U << 0) /* version 1.3 */
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#define RAID_FEATURE_RAID0 (1U << 1) /* version 1.7 */
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#define RAID_FEATURE_RESHAPING (1U << 2) /* version 1.8 */
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#define RAID_FEATURE_RAID4 (1U << 3) /* ! version 1.8 or 1.9.0 */
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#define RAID_FEATURE_SHRINK (1U << 4) /* version 1.9.0 */
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#define RAID_FEATURE_RESHAPE (1U << 5) /* version 1.10.1 */
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#ifdef RAID_INTERNAL
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int init_raid_segtypes(struct cmd_context *cmd, struct segtype_library *seglib);
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#endif
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#ifdef REPLICATOR_INTERNAL
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int init_replicator_segtype(struct cmd_context *cmd, struct segtype_library *seglib);
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#endif
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#define THIN_FEATURE_DISCARDS (1U << 0)
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#define THIN_FEATURE_EXTERNAL_ORIGIN (1U << 1)
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#define THIN_FEATURE_HELD_ROOT (1U << 2)
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#define THIN_FEATURE_BLOCK_SIZE (1U << 3)
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#define THIN_FEATURE_DISCARDS_NON_POWER_2 (1U << 4)
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#define THIN_FEATURE_METADATA_RESIZE (1U << 5)
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#define THIN_FEATURE_EXTERNAL_ORIGIN_EXTEND (1U << 6)
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#define THIN_FEATURE_ERROR_IF_NO_SPACE (1U << 7)
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#ifdef THIN_INTERNAL
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int init_thin_segtypes(struct cmd_context *cmd, struct segtype_library *seglib);
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#endif
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#ifdef CACHE_INTERNAL
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int init_cache_segtypes(struct cmd_context *cmd, struct segtype_library *seglib);
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#endif
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#define CACHE_FEATURE_POLICY_MQ (1U << 0)
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#define CACHE_FEATURE_POLICY_SMQ (1U << 1)
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#define CACHE_FEATURE_METADATA2 (1U << 2)
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#define SNAPSHOT_FEATURE_FIXED_LEAK (1U << 0) /* version 1.12 */
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#ifdef SNAPSHOT_INTERNAL
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struct segment_type *init_snapshot_segtype(struct cmd_context *cmd);
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#endif
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#define MIRROR_LOG_CLUSTERED (1U << 0)
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#ifdef MIRRORED_INTERNAL
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struct segment_type *init_mirrored_segtype(struct cmd_context *cmd);
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#endif
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#ifdef CRYPT_INTERNAL
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struct segment_type *init_crypt_segtype(struct cmd_context *cmd);
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#endif
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#endif
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