mirror of
git://sourceware.org/git/lvm2.git
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0e5beb92c5
Add lvm.conf config/validate_metadata configurable setting. Allows to disable validation of volume_group structure before writing to disk. Call of vg_validate() is supposed to catch any inconsistency of in-memory volume group structure and possibly early aborting commnand before making any more 'damage' in case the VG struct is found insistent after some metadata manipulation. This is almost always useful for devel - and also for normal user as for small metadata size this doesn't add too much overhead. However if the volume_group size is large and operations are just adding removing simple LVs - this validation time may add noticable to final command running time. So if the user seeks the highest perfomance of command and does not do any 'complex' metadata manipulation - it's reasonably safe to disable validation (with the use of setting "none") here.
349 lines
13 KiB
C
349 lines
13 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2014 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 _LVM_DEFAULTS_H
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#define _LVM_DEFAULTS_H
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#include "device_mapper/vdo/vdo_limits.h"
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/*
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* By default the first PE is placed at 1 MiB.
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*
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* If default_data_alignment is 2, then the first PE
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* is placed at 2 * 1 MiB.
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*
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* If default_data_alignment is 3, then the first PE
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* is placed at 3 * 1 MiB.
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*/
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#define FIRST_PE_AT_ONE_MB_IN_SECTORS 2048 /* 1 MiB in 512 byte sectors */
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#define FIRST_PE_AT_ONE_MB_IN_MB 1
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#define DEFAULT_ARCHIVE_ENABLED 1
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#define DEFAULT_BACKUP_ENABLED 1
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#define DEFAULT_VALIDATE_METADATA "full" /* full | none */
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#define DEFAULT_CACHE_FILE_PREFIX ""
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#define DEFAULT_ARCHIVE_DAYS 30
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#define DEFAULT_ARCHIVE_NUMBER 10
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#define DEFAULT_DEV_DIR "/dev"
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#define DEFAULT_SYSTEM_ID_SOURCE "none"
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#define DEFAULT_OBTAIN_DEVICE_LIST_FROM_UDEV 0
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#define DEFAULT_EXTERNAL_DEVICE_INFO_SOURCE "none"
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#define DEFAULT_SYSFS_SCAN 1
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#define DEFAULT_MD_COMPONENT_DETECTION 1
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#define DEFAULT_FW_RAID_COMPONENT_DETECTION 0
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#define DEFAULT_MD_CHUNK_ALIGNMENT 1
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#define DEFAULT_IGNORE_LVM_MIRRORS 1
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#define DEFAULT_MULTIPATH_COMPONENT_DETECTION 1
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#define DEFAULT_IGNORE_SUSPENDED_DEVICES 0
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#define DEFAULT_REQUIRE_RESTOREFILE_WITH_UUID 1
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#define DEFAULT_DATA_ALIGNMENT_OFFSET_DETECTION 1
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#define DEFAULT_DATA_ALIGNMENT_DETECTION 1
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#define DEFAULT_ISSUE_DISCARDS 0
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#define DEFAULT_PV_MIN_SIZE_KB 2048
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#define DEFAULT_ALLOW_CHANGES_WITH_DUPLICATE_PVS 0
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#define DEFAULT_LOCKING_LIB "liblvm2clusterlock.so"
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#define DEFAULT_ERROR_WHEN_FULL 0
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#define DEFAULT_FALLBACK_TO_LOCAL_LOCKING 1
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#define DEFAULT_FALLBACK_TO_CLUSTERED_LOCKING 1
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#define DEFAULT_WAIT_FOR_LOCKS 1
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#define DEFAULT_LVMLOCKD_LOCK_RETRIES 3
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#define DEFAULT_LVMETAD_UPDATE_WAIT_TIME 10
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#define DEFAULT_PRIORITISE_WRITE_LOCKS 1
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#define DEFAULT_USE_MLOCKALL 0
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#define DEFAULT_METADATA_READ_ONLY 0
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#define DEFAULT_LVDISPLAY_SHOWS_FULL_DEVICE_PATH 0
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#define DEFAULT_UNKNOWN_DEVICE_NAME "[unknown]"
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#define DEFAULT_USE_AIO 1
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#define DEFAULT_SANLOCK_LV_EXTEND_MB 256
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#define DEFAULT_SANLOCK_ALIGN_SIZE 8 /* in MiB, applies to 4K disks only */
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#define DEFAULT_MIRRORLOG MIRROR_LOG_DISK
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#define DEFAULT_MIRROR_LOG_FAULT_POLICY "allocate"
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#define DEFAULT_MIRROR_IMAGE_FAULT_POLICY "remove"
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#define DEFAULT_MIRROR_MAX_IMAGES 8 /* limited by kernel DM_KCOPYD_MAX_REGIONS */
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/* Limited by kernel failed devices bitfield in superblock (raid4/5/6 MD max 253) */
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/*
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* FIXME: Increase these to 64 and further to the MD maximum
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* once the SubLVs split and name shift got enhanced
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*/
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#define DEFAULT_RAID1_MAX_IMAGES 64
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#define DEFAULT_RAID_MAX_IMAGES 64
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#define DEFAULT_ALLOCATION_STRIPE_ALL_DEVICES 0 /* Don't stripe across all devices if not -i/--stripes given */
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#define DEFAULT_RAID_FAULT_POLICY "warn"
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#define DEFAULT_DMEVENTD_RAID_LIB "libdevmapper-event-lvm2raid.so"
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#define DEFAULT_DMEVENTD_MIRROR_LIB "libdevmapper-event-lvm2mirror.so"
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#define DEFAULT_DMEVENTD_SNAPSHOT_LIB "libdevmapper-event-lvm2snapshot.so"
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#define DEFAULT_DMEVENTD_THIN_LIB "libdevmapper-event-lvm2thin.so"
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#define DEFAULT_DMEVENTD_THIN_COMMAND "lvm lvextend --use-policies"
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#define DEFAULT_DMEVENTD_VDO_LIB "libdevmapper-event-lvm2vdo.so"
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#define DEFAULT_DMEVENTD_VDO_COMMAND "lvm lvextend --use-policies"
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#define DEFAULT_DMEVENTD_MONITOR 1
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#define DEFAULT_BACKGROUND_POLLING 1
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#ifndef DMEVENTD_PATH
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# define DEFAULT_DMEVENTD_PATH ""
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#else
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# define DEFAULT_DMEVENTD_PATH DMEVENTD_PATH
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#endif
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#define DEFAULT_MAX_EXEC_ARGS 15 /* Max number of accepted options args */
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#ifdef THIN_CHECK_NEEDS_CHECK
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# define DEFAULT_THIN_CHECK_OPTION1 "-q"
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# define DEFAULT_THIN_CHECK_OPTION2 "--clear-needs-check-flag"
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# define DEFAULT_THIN_CHECK_OPTIONS_CONFIG "#S" DEFAULT_THIN_CHECK_OPTION1 "#S" DEFAULT_THIN_CHECK_OPTION2
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#else
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# define DEFAULT_THIN_CHECK_OPTION1 "-q"
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# define DEFAULT_THIN_CHECK_OPTION2 ""
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# define DEFAULT_THIN_CHECK_OPTIONS_CONFIG "#S" DEFAULT_THIN_CHECK_OPTION1
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#endif
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#define DEFAULT_THIN_REPAIR_OPTION1 ""
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#define DEFAULT_THIN_REPAIR_OPTIONS_CONFIG "#S" DEFAULT_THIN_REPAIR_OPTION1
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#define DEFAULT_THIN_RESTORE_OPTION1 ""
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#define DEFAULT_THIN_RESTORE_OPTIONS_CONFIG "#S" DEFAULT_THIN_RESTORE_OPTION1
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#define DEFAULT_THIN_POOL_METADATA_REQUIRE_SEPARATE_PVS 0
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#define DEFAULT_THIN_POOL_CROP_METADATA 0
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#define DEFAULT_THIN_POOL_MAX_METADATA_SIZE_V1_KB (UINT64_C(255) * ((1 << 14) - 64) * 4) /* KB */ /* 0x3f8040 blocks */
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#define DEFAULT_THIN_POOL_MAX_METADATA_SIZE (DM_THIN_MAX_METADATA_SIZE / 2) /* KB */
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#define DEFAULT_THIN_POOL_MIN_METADATA_SIZE 2048 /* KB */
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#define DEFAULT_THIN_POOL_OPTIMAL_METADATA_SIZE (128 * 1024) /* KB */
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#define DEFAULT_THIN_POOL_CHUNK_SIZE_POLICY "generic"
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#define DEFAULT_THIN_POOL_CHUNK_SIZE 64 /* KB */
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#define DEFAULT_THIN_POOL_CHUNK_SIZE_PERFORMANCE 512 /* KB */
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/* Chunk size big enough it no longer needs jump by power-of-2 */
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#define DEFAULT_THIN_POOL_CHUNK_SIZE_ALIGNED 1024 /* KB */
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#define DEFAULT_THIN_POOL_DISCARDS "passdown"
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#define DEFAULT_THIN_POOL_ZERO 1
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#define DEFAULT_POOL_METADATA_SPARE 1 /* thin + cache */
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#define DEFAULT_ZERO_METADATA 1 /* thin + cache */
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#ifdef CACHE_CHECK_NEEDS_CHECK
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# define DEFAULT_CACHE_CHECK_OPTION1 "-q"
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# define DEFAULT_CACHE_CHECK_OPTION2 "--clear-needs-check-flag"
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# define DEFAULT_CACHE_CHECK_OPTIONS_CONFIG "#S" DEFAULT_CACHE_CHECK_OPTION1 "#S" DEFAULT_CACHE_CHECK_OPTION2
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#else
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# define DEFAULT_CACHE_CHECK_OPTION1 "-q"
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# define DEFAULT_CACHE_CHECK_OPTION2 ""
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# define DEFAULT_CACHE_CHECK_OPTIONS_CONFIG "#S" DEFAULT_CACHE_CHECK_OPTION1
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#endif
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#define DEFAULT_CACHE_REPAIR_OPTION1 ""
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#define DEFAULT_CACHE_REPAIR_OPTIONS_CONFIG "#S" DEFAULT_CACHE_REPAIR_OPTION1
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#define DEFAULT_CACHE_RESTORE_OPTION1 ""
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#define DEFAULT_CACHE_RESTORE_OPTIONS_CONFIG "#S" DEFAULT_CACHE_RESTORE_OPTION1
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#define DEFAULT_CACHE_POOL_METADATA_REQUIRE_SEPARATE_PVS 0
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#define DEFAULT_CACHE_POOL_CHUNK_SIZE 64 /* KB */
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#define DEFAULT_CACHE_POOL_MAX_CHUNKS 1000000
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#define DEFAULT_CACHE_POOL_MIN_METADATA_SIZE 2048 /* KB */
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#define DEFAULT_CACHE_POOL_MAX_METADATA_SIZE (16 * 1024 * 1024) /* KB */
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#define DEFAULT_CACHE_POLICY "mq"
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#define DEFAULT_CACHE_METADATA_FORMAT CACHE_METADATA_FORMAT_UNSELECTED /* Autodetect */
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#define DEFAULT_CACHE_MODE "writethrough"
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/* VDO defaults */
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#define DEFAULT_VDO_USE_COMPRESSION (true)
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#define DEFAULT_VDO_USE_DEDUPLICATION (true)
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#define DEFAULT_VDO_USE_METADATA_HINTS (true)
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#define DEFAULT_VDO_MINIMUM_IO_SIZE (4096)
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#define DEFAULT_VDO_BLOCK_MAP_CACHE_SIZE_MB (DM_VDO_BLOCK_MAP_CACHE_SIZE_MINIMUM_MB)
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#define DEFAULT_VDO_BLOCK_MAP_ERA_LENGTH (DM_VDO_BLOCK_MAP_ERA_LENGTH_MAXIMUM)
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#define DEFAULT_VDO_USE_SPARSE_INDEX (false)
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#define DEFAULT_VDO_CHECK_POINT_FREQUENCY (0)
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#define DEFAULT_VDO_INDEX_MEMORY_SIZE_MB (DM_VDO_INDEX_MEMORY_SIZE_MINIMUM_MB)
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#define DEFAULT_VDO_SLAB_SIZE_MB (2 * 1024) // 2GiB ... 19 slabbits
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#define DEFAULT_VDO_ACK_THREADS (1)
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#define DEFAULT_VDO_BIO_THREADS (4)
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#define DEFAULT_VDO_BIO_ROTATION (64)
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#define DEFAULT_VDO_CPU_THREADS (2)
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#define DEFAULT_VDO_HASH_ZONE_THREADS (1)
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#define DEFAULT_VDO_LOGICAL_THREADS (1)
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#define DEFAULT_VDO_PHYSICAL_THREADS (1)
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#define DEFAULT_VDO_WRITE_POLICY "auto"
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#define DEFAULT_VDO_MAX_DISCARD (DM_VDO_MAX_DISCARD_MINIMUM)
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#define DEFAULT_VDO_FORMAT_OPTIONS_CONFIG "#S" ""
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/*
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* VDO pool will reserve some sectors in the front and the back of pool device to avoid
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* seeing same device twice in the system.
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*/
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#define DEFAULT_VDO_POOL_HEADER_SIZE_KB (512)
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#define DEFAULT_FSADM_PATH FSADM_PATH
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#define DEFAULT_UMASK 0077
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#define DEFAULT_FORMAT "lvm2"
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#define DEFAULT_STRIPESIZE 64 /* KB */
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#define DEFAULT_RECORD_LVS_HISTORY 0
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#define DEFAULT_LVS_HISTORY_RETENTION_TIME 0
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#define DEFAULT_PVMETADATAIGNORE 0
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#define DEFAULT_PVMETADATACOPIES 1
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#define DEFAULT_VGMETADATACOPIES 0
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#define DEFAULT_LABELSECTOR UINT64_C(1)
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#define DEFAULT_READ_AHEAD "auto"
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#define DEFAULT_UDEV_RULES 1
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#define DEFAULT_UDEV_SYNC 1
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#define DEFAULT_NOTIFY_DBUS 1
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#define DEFAULT_VERIFY_UDEV_OPERATIONS 0
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#define DEFAULT_RETRY_DEACTIVATION 1
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#define DEFAULT_ACTIVATION_CHECKS 0
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#define DEFAULT_EXTENT_SIZE 4096 /* In KB */
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#define DEFAULT_MAX_PV 0
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#define DEFAULT_MAX_LV 0
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#define DEFAULT_ALLOC_POLICY ALLOC_NORMAL
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#define DEFAULT_MIRROR_LOGS_REQUIRE_SEPARATE_PVS 0
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#define DEFAULT_MAXIMISE_CLING 1
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#define DEFAULT_CLUSTERED 0
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#define DEFAULT_MSG_PREFIX " "
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#define DEFAULT_CMD_NAME 0
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#define DEFAULT_OVERWRITE 0
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#ifndef DEFAULT_LOG_FACILITY
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# define DEFAULT_LOG_FACILITY LOG_USER
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#endif
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#define DEFAULT_COMMAND_LOG_REPORT 0
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#define DEFAULT_SYSLOG 0
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#define DEFAULT_VERBOSE 0
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#define DEFAULT_SILENT 0
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#define DEFAULT_LOGLEVEL 0
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#define DEFAULT_INDENT 0
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#define DEFAULT_ABORT_ON_INTERNAL_ERRORS 0
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#define DEFAULT_UNITS "r"
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#define DEFAULT_SUFFIX 1
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#define DEFAULT_HOSTTAGS 0
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#ifndef DEFAULT_SI_UNIT_CONSISTENCY
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# define DEFAULT_SI_UNIT_CONSISTENCY 1
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#endif
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#ifdef DEVMAPPER_SUPPORT
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# define DEFAULT_ACTIVATION 1
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#else
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# define DEFAULT_ACTIVATION 0
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#endif
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#define DEFAULT_RESERVED_MEMORY 8192
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#define DEFAULT_RESERVED_STACK 64 /* KB */
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#define DEFAULT_PROCESS_PRIORITY -18
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#define DEFAULT_AUTO_SET_ACTIVATION_SKIP 1
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#define DEFAULT_ACTIVATION_MODE "degraded"
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#define DEFAULT_USE_LINEAR_TARGET 1
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#define DEFAULT_STRIPE_FILLER "error"
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#define DEFAULT_RAID_REGION_SIZE 2048 /* KB */
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#define DEFAULT_INTERVAL 15
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#define DEFAULT_MAX_HISTORY 100
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#define DEFAULT_REP_COMPACT_OUTPUT 0
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#define DEFAULT_REP_ALIGNED 1
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#define DEFAULT_REP_BUFFERED 1
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#define DEFAULT_REP_COLUMNS_AS_ROWS 0
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#define DEFAULT_REP_HEADINGS 1
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#define DEFAULT_REP_PREFIXES 0
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#define DEFAULT_REP_QUOTED 1
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#define DEFAULT_REP_SEPARATOR " "
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#define DEFAULT_REP_LIST_ITEM_SEPARATOR ","
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#define DEFAULT_TIME_FORMAT "%Y-%m-%d %T %z"
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#define DEFAULT_REP_OUTPUT_FORMAT "basic"
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#define DEFAULT_COMPACT_OUTPUT_COLS ""
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#define DEFAULT_COMMAND_LOG_SELECTION "!(log_type=status && message=success)"
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#define DEFAULT_LVS_COLS "lv_name,vg_name,lv_attr,lv_size,pool_lv,origin,data_percent,metadata_percent,move_pv,mirror_log,copy_percent,convert_lv"
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#define DEFAULT_VGS_COLS "vg_name,pv_count,lv_count,snap_count,vg_attr,vg_size,vg_free"
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#define DEFAULT_PVS_COLS "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free"
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#define DEFAULT_SEGS_COLS "lv_name,vg_name,lv_attr,stripes,segtype,seg_size"
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#define DEFAULT_PVSEGS_COLS "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,pvseg_start,pvseg_size"
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#define DEFAULT_DEVTYPES_COLS "devtype_name,devtype_max_partitions,devtype_description"
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#define DEFAULT_COMMAND_LOG_COLS "log_seq_num,log_type,log_context,log_object_type,log_object_name,log_object_id,log_object_group,log_object_group_id,log_message,log_errno,log_ret_code"
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#define DEFAULT_LVS_COLS_VERB "lv_name,vg_name,seg_count,lv_attr,lv_size,lv_major,lv_minor,lv_kernel_major,lv_kernel_minor,pool_lv,origin,data_percent,metadata_percent,move_pv,copy_percent,mirror_log,convert_lv,lv_uuid,lv_profile"
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#define DEFAULT_VGS_COLS_VERB "vg_name,vg_attr,vg_extent_size,pv_count,lv_count,snap_count,vg_size,vg_free,vg_uuid,vg_profile"
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#define DEFAULT_PVS_COLS_VERB "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,dev_size,pv_uuid"
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#define DEFAULT_SEGS_COLS_VERB "lv_name,vg_name,lv_attr,seg_start,seg_size,stripes,segtype,stripesize,chunksize"
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#define DEFAULT_PVSEGS_COLS_VERB "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,pvseg_start,pvseg_size,lv_name,seg_start_pe,segtype,seg_pe_ranges"
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#define DEFAULT_DEVTYPES_COLS_VERB "devtype_name,devtype_max_partitions,devtype_description"
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#define DEFAULT_VGS_COLS_FULL "vg_all"
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#define DEFAULT_PVS_COLS_FULL "pv_all"
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#define DEFAULT_LVS_COLS_FULL "lv_all"
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#define DEFAULT_PVSEGS_COLS_FULL "pvseg_all,pv_uuid,lv_uuid"
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#define DEFAULT_SEGS_COLS_FULL "seg_all,lv_uuid"
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#define DEFAULT_LVS_SORT "vg_name,lv_name"
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#define DEFAULT_VGS_SORT "vg_name"
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#define DEFAULT_PVS_SORT "pv_name"
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#define DEFAULT_SEGS_SORT "vg_name,lv_name,seg_start"
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#define DEFAULT_PVSEGS_SORT "pv_name,pvseg_start"
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#define DEFAULT_DEVTYPES_SORT "devtype_name"
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#define DEFAULT_COMMAND_LOG_SORT "log_seq_num"
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#define DEFAULT_VGS_SORT_FULL "vg_name"
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#define DEFAULT_PVS_SORT_FULL "pv_name"
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#define DEFAULT_LVS_SORT_FULL "vg_name,lv_name"
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#define DEFAULT_PVSEGS_SORT_FULL "pv_uuid,pvseg_start"
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#define DEFAULT_SEGS_SORT_FULL "lv_uuid,seg_start"
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#define DEFAULT_MIRROR_DEVICE_FAULT_POLICY "remove"
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#define DEFAULT_MIRROR_LOG_FAULT_POLICY "allocate"
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#define DEFAULT_SNAPSHOT_AUTOEXTEND_THRESHOLD 100
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#define DEFAULT_SNAPSHOT_AUTOEXTEND_PERCENT 20
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#define DEFAULT_THIN_POOL_AUTOEXTEND_THRESHOLD 100
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#define DEFAULT_THIN_POOL_AUTOEXTEND_PERCENT 20
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#define DEFAULT_VDO_POOL_AUTOEXTEND_THRESHOLD 100
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#define DEFAULT_VDO_POOL_AUTOEXTEND_PERCENT 20
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#define DEFAULT_SCAN_LVS 0
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#define DEFAULT_HINTS "all"
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#define DEFAULT_IO_MEMORY_SIZE_KB 8192
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#define DEFAULT_MD_COMPONENT_CHECKS "auto"
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#define DEFAULT_DEVICES_FILE "system.devices"
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#define DEFAULT_SEARCH_FOR_DEVNAMES "all"
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#define DEFAULT_WWIDS_FILE "/etc/multipath/wwids"
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#define PVS_ONLINE_DIR DEFAULT_RUN_DIR "/pvs_online"
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#define VGS_ONLINE_DIR DEFAULT_RUN_DIR "/vgs_online"
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#define PVS_LOOKUP_DIR DEFAULT_RUN_DIR "/pvs_lookup"
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#define DEVICES_IMPORT_PATH DEFAULT_RUN_DIR "/lvm-devices-import"
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#define DEFAULT_DEVICE_ID_SYSFS_DIR "/sys/" /* trailing / to match dm_sysfs_dir() */
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#define DEFAULT_DEVICESFILE_BACKUP_LIMIT 50
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#endif /* _LVM_DEFAULTS_H */
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