mirror of
git://sourceware.org/git/lvm2.git
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d2c3b23e6d
'lvchange --resync LV' or 'lvchange --syncaction repair LV' request the RAID layout specific parity blocks in raid4/5/6 to be recreated or the mirrored blocks to be copied again from the master leg/copy for raid1/10, thus not allowing a rebuild of a particular PV. Introduce repeatable option '--[raid]rebuild PV' to allow to request rebuilds of specific PVs in a RaidLV which are known to contain corrupt data (e.g. rebuild a raid1 master leg). Add test lvchange-rebuild-raid.sh to test/shell doing rebuild variations on raid1/10 and 5; add aux function check_status_chars to support the new test. - Resolves rhbz1064592
1326 lines
50 KiB
C
1326 lines
50 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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/*
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* This is the representation of LVM metadata that is being adapted
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* for library export.
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*/
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#ifndef _LVM_METADATA_EXPORTED_H
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#define _LVM_METADATA_EXPORTED_H
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#include "uuid.h"
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#include "pv.h"
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#include "vg.h"
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#include "lv.h"
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#include "lvm-percent.h"
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#define MAX_STRIPES 128U
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#define SECTOR_SHIFT 9L
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#define SECTOR_SIZE ( 1L << SECTOR_SHIFT )
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#define STRIPE_SIZE_MIN ( (unsigned) lvm_getpagesize() >> SECTOR_SHIFT) /* PAGESIZE in sectors */
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#define STRIPE_SIZE_MAX ( 512L * 1024L >> SECTOR_SHIFT) /* 512 KB in sectors */
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#define STRIPE_SIZE_LIMIT ((UINT_MAX >> 2) + 1)
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#define MAX_RESTRICTED_LVS 255 /* Used by FMT_RESTRICTED_LVIDS */
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#define MAX_EXTENT_SIZE ((uint32_t) -1)
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#define MIN_NON_POWER2_EXTENT_SIZE (128U * 2U) /* 128KB in sectors */
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#define HISTORICAL_LV_PREFIX "-"
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/* Layer suffix */
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#define MIRROR_SYNC_LAYER "_mimagetmp"
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/* PV extension flags */
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#define PV_EXT_USED UINT32_C(0x00000001)
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/* Various flags */
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/* Note that the bits no longer necessarily correspond to LVM1 disk format */
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#define PARTIAL_VG UINT64_C(0x0000000000000001) /* VG */
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#define EXPORTED_VG UINT64_C(0x0000000000000002) /* VG PV */
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#define RESIZEABLE_VG UINT64_C(0x0000000000000004) /* VG */
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/* May any free extents on this PV be used or must they be left free? */
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#define ALLOCATABLE_PV UINT64_C(0x0000000000000008) /* PV */
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#define ARCHIVED_VG ALLOCATABLE_PV /* VG, reuse same bit */
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//#define SPINDOWN_LV UINT64_C(0x0000000000000010) /* LV */
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//#define BADBLOCK_ON UINT64_C(0x0000000000000020) /* LV */
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#define VISIBLE_LV UINT64_C(0x0000000000000040) /* LV */
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#define FIXED_MINOR UINT64_C(0x0000000000000080) /* LV */
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#define LVM_READ UINT64_C(0x0000000000000100) /* LV, VG */
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#define LVM_WRITE UINT64_C(0x0000000000000200) /* LV, VG */
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#define LVM_WRITE_LOCKED UINT64_C(0x0020000000000000) /* LV, VG */
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#define CLUSTERED UINT64_C(0x0000000000000400) /* VG */
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//#define SHARED UINT64_C(0x0000000000000800) /* VG */
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/* FIXME Remove when metadata restructuring is completed */
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#define SNAPSHOT UINT64_C(0x0000000000001000) /* LV - internal use only */
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#define PVMOVE UINT64_C(0x0000000000002000) /* VG LV SEG */
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#define LOCKED UINT64_C(0x0000000000004000) /* LV */
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#define MIRRORED UINT64_C(0x0000000000008000) /* LV - internal use only */
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#define VIRTUAL UINT64_C(0x0000000000010000) /* LV - internal use only */
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#define MIRROR UINT64_C(0x0002000000000000) /* LV - Internal use only */
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#define MIRROR_LOG UINT64_C(0x0000000000020000) /* LV - Internal use only */
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#define MIRROR_IMAGE UINT64_C(0x0000000000040000) /* LV - Internal use only */
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#define LV_NOTSYNCED UINT64_C(0x0000000000080000) /* LV */
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#define LV_REBUILD UINT64_C(0x0000000000100000) /* LV */
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//#define PRECOMMITTED UINT64_C(0x0000000000200000) /* VG - internal use only */
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#define CONVERTING UINT64_C(0x0000000000400000) /* LV */
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#define MISSING_PV UINT64_C(0x0000000000800000) /* PV */
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#define PARTIAL_LV UINT64_C(0x0000000001000000) /* LV - derived flag, not
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written out in metadata*/
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//#define POSTORDER_FLAG UINT64_C(0x0000000002000000) /* Not real flags, reserved for
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//#define POSTORDER_OPEN_FLAG UINT64_C(0x0000000004000000) temporary use inside vg_read_internal. */
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#define VIRTUAL_ORIGIN UINT64_C(0x0000000008000000) /* LV - internal use only */
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#define MERGING UINT64_C(0x0000000010000000) /* LV SEG */
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#define REPLICATOR UINT64_C(0x0000000020000000) /* LV -internal use only for replicator */
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#define REPLICATOR_LOG UINT64_C(0x0000000040000000) /* LV -internal use only for replicator-dev */
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#define UNLABELLED_PV UINT64_C(0x0000000080000000) /* PV -this PV had no label written yet */
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#define RAID UINT64_C(0x0000000100000000) /* LV - Internal use only */
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#define RAID_META UINT64_C(0x0000000200000000) /* LV - Internal use only */
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#define RAID_IMAGE UINT64_C(0x0000000400000000) /* LV - Internal use only */
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#define THIN_VOLUME UINT64_C(0x0000001000000000) /* LV - Internal use only */
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#define THIN_POOL UINT64_C(0x0000002000000000) /* LV - Internal use only */
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#define THIN_POOL_DATA UINT64_C(0x0000004000000000) /* LV - Internal use only */
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#define THIN_POOL_METADATA UINT64_C(0x0000008000000000) /* LV - Internal use only */
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#define POOL_METADATA_SPARE UINT64_C(0x0000010000000000) /* LV - Internal use only */
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#define LV_WRITEMOSTLY UINT64_C(0x0000020000000000) /* LV (RAID1) */
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#define LV_ACTIVATION_SKIP UINT64_C(0x0000040000000000) /* LV */
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#define LV_NOSCAN UINT64_C(0x0000080000000000) /* LV - internal use only - the LV
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should not be scanned */
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#define LV_TEMPORARY UINT64_C(0x0000100000000000) /* LV - internal use only - the LV
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is supposed to be created and
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removed or reactivated with
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this flag dropped during single
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LVM command execution. */
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#define CACHE_POOL UINT64_C(0x0000200000000000) /* LV - Internal use only */
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#define CACHE_POOL_DATA UINT64_C(0x0000400000000000) /* LV - Internal use only */
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#define CACHE_POOL_METADATA UINT64_C(0x0000800000000000) /* LV - Internal use only */
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#define CACHE UINT64_C(0x0001000000000000) /* LV - Internal use only */
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#define LV_PENDING_DELETE UINT64_C(0x0004000000000000) /* LV - Internal use only */
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#define LV_REMOVED UINT64_C(0x0040000000000000) /* LV - Internal use only
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This flag is used to mark an LV once it has
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been removed from the VG. It might still
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be referenced on internal lists of LVs.
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Any remaining references should check for
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this flag and ignore the LV is set.
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FIXME: Remove this flag once we have indexed
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vg->removed_lvs for quick lookup.
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*/
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#define LV_ERROR_WHEN_FULL UINT64_C(0x0008000000000000) /* LV - error when full */
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#define PV_ALLOCATION_PROHIBITED UINT64_C(0x0010000000000000) /* PV - internal use only - allocation prohibited
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e.g. to prohibit allocation of a RAID image
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on a PV already holing an image of the RAID set */
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#define LOCKD_SANLOCK_LV UINT64_C(0x0080000000000000) /* LV - Internal use only */
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/* Next unused flag: UINT64_C(0x0100000000000000) */
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/* Format features flags */
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#define FMT_SEGMENTS 0x00000001U /* Arbitrary segment params? */
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#define FMT_MDAS 0x00000002U /* Proper metadata areas? */
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#define FMT_TAGS 0x00000004U /* Tagging? */
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#define FMT_UNLIMITED_VOLS 0x00000008U /* Unlimited PVs/LVs? */
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#define FMT_RESTRICTED_LVIDS 0x00000010U /* LVID <= 255 */
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#define FMT_ORPHAN_ALLOCATABLE 0x00000020U /* Orphan PV allocatable? */
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//#define FMT_PRECOMMIT 0x00000040U /* Supports pre-commit? */
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#define FMT_RESIZE_PV 0x00000080U /* Supports pvresize? */
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#define FMT_UNLIMITED_STRIPESIZE 0x00000100U /* Unlimited stripe size? */
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#define FMT_RESTRICTED_READAHEAD 0x00000200U /* Readahead restricted to 2-120? */
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#define FMT_BAS 0x000000400U /* Supports bootloader areas? */
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#define FMT_CONFIG_PROFILE 0x000000800U /* Supports configuration profiles? */
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#define FMT_OBSOLETE 0x000001000U /* Obsolete format? */
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#define FMT_NON_POWER2_EXTENTS 0x000002000U /* Non-power-of-2 extent sizes? */
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#define FMT_SYSTEMID_ON_PVS 0x000004000U /* System ID is stored on PVs not VG */
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#define FMT_PV_FLAGS 0x000008000U /* Supports PV flags */
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#define systemid_on_pvs(vg) ((vg)->fid->fmt->features & FMT_SYSTEMID_ON_PVS)
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/* Mirror conversion type flags */
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#define MIRROR_BY_SEG 0x00000001U /* segment-by-segment mirror */
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#define MIRROR_BY_LV 0x00000002U /* mirror using whole mimage LVs */
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#define MIRROR_BY_SEGMENTED_LV 0x00000004U /* mirror using whole mimage LVs that
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* preserve the segment structure */
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#define MIRROR_SKIP_INIT_SYNC 0x00000010U /* skip initial sync */
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/* vg_read and vg_read_for_update flags */
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#define READ_ALLOW_INCONSISTENT 0x00010000U
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#define READ_ALLOW_EXPORTED 0x00020000U
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#define READ_OK_NOTFOUND 0x00040000U
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#define READ_WARN_INCONSISTENT 0x00080000U
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#define READ_FOR_UPDATE 0x00100000U /* A meta-flag, useful with toollib for_each_* functions. */
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/* vg's "read_status" field */
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#define FAILED_INCONSISTENT 0x00000001U
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#define FAILED_LOCKING 0x00000002U
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#define FAILED_NOTFOUND 0x00000004U
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#define FAILED_READ_ONLY 0x00000008U
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#define FAILED_EXPORTED 0x00000010U
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#define FAILED_RESIZEABLE 0x00000020U
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#define FAILED_CLUSTERED 0x00000040U
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#define FAILED_ALLOCATION 0x00000080U
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#define FAILED_EXIST 0x00000100U
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#define FAILED_RECOVERY 0x00000200U
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#define FAILED_SYSTEMID 0x00000400U
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#define FAILED_LOCK_TYPE 0x00000800U
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#define FAILED_LOCK_MODE 0x00001000U
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#define SUCCESS 0x00000000U
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#define VGMETADATACOPIES_ALL UINT32_MAX
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#define VGMETADATACOPIES_UNMANAGED 0
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#define vg_is_archived(vg) (((vg)->status & ARCHIVED_VG) ? 1 : 0)
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#define lv_is_locked(lv) (((lv)->status & LOCKED) ? 1 : 0)
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#define lv_is_partial(lv) (((lv)->status & PARTIAL_LV) ? 1 : 0)
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#define lv_is_virtual(lv) (((lv)->status & VIRTUAL) ? 1 : 0)
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#define lv_is_merging(lv) (((lv)->status & MERGING) ? 1 : 0)
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#define lv_is_merging_origin(lv) (lv_is_merging(lv))
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#define lv_is_snapshot(lv) (((lv)->status & SNAPSHOT) ? 1 : 0)
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#define lv_is_converting(lv) (((lv)->status & CONVERTING) ? 1 : 0)
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#define lv_is_external_origin(lv) (((lv)->external_count > 0) ? 1 : 0)
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#define lv_is_virtual_origin(lv) (((lv)->status & VIRTUAL_ORIGIN) ? 1 : 0)
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#define lv_is_thin_volume(lv) (((lv)->status & THIN_VOLUME) ? 1 : 0)
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#define lv_is_thin_pool(lv) (((lv)->status & THIN_POOL) ? 1 : 0)
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#define lv_is_new_thin_pool(lv) (lv_is_thin_pool(lv) && !first_seg(lv)->transaction_id)
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#define lv_is_used_thin_pool(lv) (lv_is_thin_pool(lv) && !dm_list_empty(&(lv)->segs_using_this_lv))
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#define lv_is_thin_pool_data(lv) (((lv)->status & THIN_POOL_DATA) ? 1 : 0)
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#define lv_is_thin_pool_metadata(lv) (((lv)->status & THIN_POOL_METADATA) ? 1 : 0)
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#define lv_is_thin_type(lv) (((lv)->status & (THIN_POOL | THIN_VOLUME | THIN_POOL_DATA | THIN_POOL_METADATA)) ? 1 : 0)
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#define lv_is_mirrored(lv) (((lv)->status & MIRRORED) ? 1 : 0)
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#define lv_is_mirror_image(lv) (((lv)->status & MIRROR_IMAGE) ? 1 : 0)
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#define lv_is_mirror_log(lv) (((lv)->status & MIRROR_LOG) ? 1 : 0)
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#define lv_is_mirror(lv) (((lv)->status & MIRROR) ? 1 : 0)
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#define lv_is_mirror_type(lv) (((lv)->status & (MIRROR | MIRROR_LOG | MIRROR_IMAGE)) ? 1 : 0)
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#define lv_is_not_synced(lv) (((lv)->status & LV_NOTSYNCED) ? 1 : 0)
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#define lv_is_pending_delete(lv) (((lv)->status & LV_PENDING_DELETE) ? 1 : 0)
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#define lv_is_error_when_full(lv) (((lv)->status & LV_ERROR_WHEN_FULL) ? 1 : 0)
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#define lv_is_pvmove(lv) (((lv)->status & PVMOVE) ? 1 : 0)
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#define lv_is_raid(lv) (((lv)->status & RAID) ? 1 : 0)
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#define lv_is_raid_image(lv) (((lv)->status & RAID_IMAGE) ? 1 : 0)
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#define lv_is_raid_metadata(lv) (((lv)->status & RAID_META) ? 1 : 0)
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#define lv_is_raid_type(lv) (((lv)->status & (RAID | RAID_IMAGE | RAID_META)) ? 1 : 0)
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#define lv_is_cache(lv) (((lv)->status & CACHE) ? 1 : 0)
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#define lv_is_cache_pool(lv) (((lv)->status & CACHE_POOL) ? 1 : 0)
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#define lv_is_used_cache_pool(lv) (lv_is_cache_pool(lv) && !dm_list_empty(&(lv)->segs_using_this_lv))
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#define lv_is_cache_pool_data(lv) (((lv)->status & CACHE_POOL_DATA) ? 1 : 0)
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#define lv_is_cache_pool_metadata(lv) (((lv)->status & CACHE_POOL_METADATA) ? 1 : 0)
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#define lv_is_cache_type(lv) (((lv)->status & (CACHE | CACHE_POOL | CACHE_POOL_DATA | CACHE_POOL_METADATA)) ? 1 : 0)
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#define lv_is_pool(lv) (((lv)->status & (CACHE_POOL | THIN_POOL)) ? 1 : 0)
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#define lv_is_pool_data(lv) (((lv)->status & (CACHE_POOL_DATA | THIN_POOL_DATA)) ? 1 : 0)
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#define lv_is_pool_metadata(lv) (((lv)->status & (CACHE_POOL_METADATA | THIN_POOL_METADATA)) ? 1 : 0)
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#define lv_is_pool_metadata_spare(lv) (((lv)->status & POOL_METADATA_SPARE) ? 1 : 0)
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#define lv_is_lockd_sanlock_lv(lv) (((lv)->status & LOCKD_SANLOCK_LV) ? 1 : 0)
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#define lv_is_rlog(lv) (((lv)->status & REPLICATOR_LOG) ? 1 : 0)
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#define lv_is_removed(lv) (((lv)->status & LV_REMOVED) ? 1 : 0)
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int lv_layout_and_role(struct dm_pool *mem, const struct logical_volume *lv,
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struct dm_list **layout, struct dm_list **role);
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/* Ordered list - see lv_manip.c */
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typedef enum {
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AREA_UNASSIGNED,
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AREA_PV,
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AREA_LV
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} area_type_t;
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/* Whether or not to force an operation */
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typedef enum {
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PROMPT = 0, /* Issue yes/no prompt to confirm operation */
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DONT_PROMPT = 1, /* Add more prompts */
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DONT_PROMPT_OVERRIDE = 2 /* Add even more dangerous prompts */
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} force_t;
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enum {
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MIRROR_LOG_CORE,
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MIRROR_LOG_DISK,
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MIRROR_LOG_MIRRORED,
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};
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typedef enum {
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THIN_DISCARDS_IGNORE,
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THIN_DISCARDS_NO_PASSDOWN,
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THIN_DISCARDS_PASSDOWN,
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} thin_discards_t;
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typedef enum {
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CACHE_MODE_UNDEFINED = 0,
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CACHE_MODE_WRITETHROUGH,
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CACHE_MODE_WRITEBACK,
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CACHE_MODE_PASSTHROUGH,
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} cache_mode_t;
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typedef enum {
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LOCK_TYPE_INVALID = -1,
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LOCK_TYPE_NONE = 0,
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LOCK_TYPE_CLVM = 1,
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LOCK_TYPE_DLM = 2,
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LOCK_TYPE_SANLOCK = 3,
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} lock_type_t;
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struct cmd_context;
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struct format_handler;
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struct labeller;
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struct format_type {
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struct dm_list list;
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struct cmd_context *cmd;
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struct format_handler *ops;
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struct dm_list mda_ops; /* List of permissible mda ops. */
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struct labeller *labeller;
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const char *name;
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const char *alias;
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const char *orphan_vg_name;
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struct volume_group *orphan_vg; /* Only one ever exists. */
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uint32_t features;
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void *library;
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void *private;
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};
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struct pv_segment {
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struct dm_list list; /* Member of pv->segments: ordered list
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* covering entire data area on this PV */
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struct physical_volume *pv;
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uint32_t pe;
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uint32_t len;
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struct lv_segment *lvseg; /* NULL if free space */
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uint32_t lv_area; /* Index to area in LV segment */
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};
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#define pvseg_is_allocated(pvseg) ((pvseg)->lvseg ? 1 : 0)
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/*
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* Properties of each format instance type.
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* The primary role of the format_instance is to temporarily store metadata
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* area information we are working with.
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*/
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/* Include any existing PV ("on-disk") mdas during format_instance initialisation. */
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#define FMT_INSTANCE_MDAS 0x00000002U
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/*
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* Include any auxiliary mdas during format_instance intialisation.
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* Currently, this includes metadata areas as defined by
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* metadata/dirs and metadata/raws setting.
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*/
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#define FMT_INSTANCE_AUX_MDAS 0x00000004U
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/*
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* Include any other format-specific mdas during format_instance initialisation.
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* For example metadata areas used during backup/restore/archive handling.
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*/
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#define FMT_INSTANCE_PRIVATE_MDAS 0x00000008U
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struct format_instance {
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unsigned ref_count; /* Refs to this fid from VG and PV structs */
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struct dm_pool *mem;
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uint32_t type;
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const struct format_type *fmt;
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/*
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* Each mda in a vg is on exactly one of the below lists.
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* MDAs on the 'in_use' list will be read from / written to
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* disk, while MDAs on the 'ignored' list will not be read
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* or written to.
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*/
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/* FIXME: Try to use the index only. Remove these lists. */
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struct dm_list metadata_areas_in_use;
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struct dm_list metadata_areas_ignored;
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|
struct dm_hash_table *metadata_areas_index;
|
|
|
|
void *private;
|
|
};
|
|
|
|
/* There will be one area for each stripe */
|
|
struct lv_segment_area {
|
|
area_type_t type;
|
|
union {
|
|
struct {
|
|
struct pv_segment *pvseg;
|
|
} pv;
|
|
struct {
|
|
struct logical_volume *lv;
|
|
uint32_t le;
|
|
} lv;
|
|
} u;
|
|
};
|
|
|
|
struct lv_thin_message {
|
|
struct dm_list list; /* Chained list of messages */
|
|
dm_thin_message_t type; /* Use dm thin message datatype */
|
|
union {
|
|
struct logical_volume *lv; /* For: create_thin, create_snap, trim */
|
|
uint32_t delete_id; /* For delete, needs device_id */
|
|
} u;
|
|
};
|
|
|
|
struct segment_type;
|
|
|
|
/* List with vg_name, vgid and flags */
|
|
struct cmd_vg {
|
|
struct dm_list list;
|
|
const char *vg_name;
|
|
const char *vgid;
|
|
uint32_t flags;
|
|
struct volume_group *vg;
|
|
};
|
|
|
|
/* ++ Replicator datatypes */
|
|
typedef enum {
|
|
REPLICATOR_STATE_PASSIVE,
|
|
REPLICATOR_STATE_ACTIVE,
|
|
NUM_REPLICATOR_STATE
|
|
} replicator_state_t;
|
|
|
|
struct replicator_site {
|
|
struct dm_list list; /* Chained list of sites */
|
|
struct dm_list rdevices; /* Device list */
|
|
|
|
struct logical_volume *replicator; /* Reference to replicator */
|
|
|
|
const char *name; /* Site name */
|
|
const char *vg_name; /* VG name */
|
|
struct volume_group *vg; /* resolved vg (activate/deactive) */
|
|
unsigned site_index;
|
|
replicator_state_t state; /* Active or pasive state of site */
|
|
dm_replicator_mode_t op_mode; /* Operation mode sync or async fail|warn|drop|stall */
|
|
uint64_t fall_behind_data; /* Bytes */
|
|
uint32_t fall_behind_ios; /* IO operations */
|
|
uint32_t fall_behind_timeout; /* Seconds */
|
|
};
|
|
|
|
struct replicator_device {
|
|
struct dm_list list; /* Chained list of devices from same site */
|
|
|
|
struct lv_segment *replicator_dev; /* Reference to replicator-dev segment */
|
|
struct replicator_site *rsite; /* Reference to site parameters */
|
|
|
|
uint64_t device_index;
|
|
const char *name; /* Device LV name */
|
|
struct logical_volume *lv; /* LV from replicator site's VG */
|
|
struct logical_volume *slog; /* Synclog lv from VG */
|
|
const char *slog_name; /* Debug - specify size of core synclog */
|
|
};
|
|
/* -- Replicator datatypes */
|
|
|
|
struct lv_segment {
|
|
struct dm_list list;
|
|
struct logical_volume *lv;
|
|
|
|
const struct segment_type *segtype;
|
|
uint32_t le;
|
|
uint32_t len;
|
|
|
|
uint64_t status;
|
|
|
|
/* FIXME Fields depend on segment type */
|
|
uint32_t stripe_size; /* For stripe and RAID - in sectors */
|
|
uint32_t writebehind; /* For RAID (RAID1 only) */
|
|
uint32_t min_recovery_rate; /* For RAID */
|
|
uint32_t max_recovery_rate; /* For RAID */
|
|
uint32_t area_count;
|
|
uint32_t area_len;
|
|
uint32_t chunk_size; /* For snapshots/thin_pool. In sectors. */
|
|
/* For thin_pool, 128..2097152. */
|
|
struct logical_volume *origin; /* snap and thin */
|
|
struct generic_logical_volume *indirect_origin;
|
|
struct logical_volume *merge_lv; /* thin, merge descendent lv into this ancestor */
|
|
struct logical_volume *cow;
|
|
struct dm_list origin_list;
|
|
uint32_t region_size; /* For mirrors, replicators - in sectors */
|
|
uint32_t extents_copied;/* Number of extents synced for raids/mirrors */
|
|
struct logical_volume *log_lv;
|
|
struct lv_segment *pvmove_source_seg;
|
|
void *segtype_private;
|
|
|
|
struct dm_list tags;
|
|
|
|
struct lv_segment_area *areas;
|
|
struct lv_segment_area *meta_areas; /* For RAID */
|
|
struct logical_volume *metadata_lv; /* For thin_pool */
|
|
uint64_t transaction_id; /* For thin_pool, thin */
|
|
unsigned zero_new_blocks; /* For thin_pool */
|
|
thin_discards_t discards; /* For thin_pool */
|
|
struct dm_list thin_messages; /* For thin_pool */
|
|
struct logical_volume *external_lv; /* For thin */
|
|
struct logical_volume *pool_lv; /* For thin, cache */
|
|
uint32_t device_id; /* For thin, 24bit */
|
|
|
|
cache_mode_t cache_mode; /* For cache_pool */
|
|
const char *policy_name; /* For cache_pool */
|
|
struct dm_config_node *policy_settings; /* For cache_pool */
|
|
unsigned cleaner_policy; /* For cache */
|
|
|
|
struct logical_volume *replicator;/* For replicator-devs - link to replicator LV */
|
|
struct logical_volume *rlog_lv; /* For replicators */
|
|
const char *rlog_type; /* For replicators */
|
|
uint64_t rdevice_index_highest; /* For replicators */
|
|
unsigned rsite_index_highest; /* For replicators */
|
|
};
|
|
|
|
#define seg_type(seg, s) (seg)->areas[(s)].type
|
|
#define seg_pv(seg, s) (seg)->areas[(s)].u.pv.pvseg->pv
|
|
#define seg_lv(seg, s) (seg)->areas[(s)].u.lv.lv
|
|
#define seg_metalv(seg, s) (seg)->meta_areas[(s)].u.lv.lv
|
|
#define seg_metatype(seg, s) (seg)->meta_areas[(s)].type
|
|
|
|
struct pe_range {
|
|
struct dm_list list;
|
|
uint32_t start; /* PEs */
|
|
uint32_t count; /* PEs */
|
|
};
|
|
|
|
struct pv_list {
|
|
struct dm_list list;
|
|
struct physical_volume *pv;
|
|
struct dm_list *mdas; /* Metadata areas */
|
|
struct dm_list *pe_ranges; /* Ranges of PEs e.g. for allocation */
|
|
};
|
|
|
|
struct lv_list {
|
|
struct dm_list list;
|
|
struct logical_volume *lv;
|
|
};
|
|
|
|
struct glv_list {
|
|
struct dm_list list;
|
|
struct generic_logical_volume *glv;
|
|
};
|
|
|
|
struct vg_list {
|
|
struct dm_list list;
|
|
struct volume_group *vg;
|
|
};
|
|
|
|
struct vgnameid_list {
|
|
struct dm_list list;
|
|
const char *vg_name;
|
|
const char *vgid;
|
|
};
|
|
|
|
#define PV_PE_START_CALC ((uint64_t) -1) /* Calculate pe_start value */
|
|
|
|
/*
|
|
* Values used by pv_create().
|
|
*/
|
|
struct pv_create_args {
|
|
uint64_t size;
|
|
uint64_t data_alignment;
|
|
uint64_t data_alignment_offset;
|
|
uint64_t label_sector;
|
|
int pvmetadatacopies;
|
|
uint64_t pvmetadatasize;
|
|
unsigned metadataignore;
|
|
|
|
/* used when restoring */
|
|
struct id id;
|
|
struct id *idp;
|
|
uint64_t ba_start;
|
|
uint64_t ba_size;
|
|
uint64_t pe_start;
|
|
uint32_t extent_count;
|
|
uint32_t extent_size;
|
|
};
|
|
|
|
struct pvcreate_params {
|
|
/*
|
|
* From argc and argv.
|
|
*/
|
|
char **pv_names;
|
|
uint32_t pv_count;
|
|
|
|
/*
|
|
* From command line args.
|
|
*/
|
|
int zero;
|
|
force_t force;
|
|
unsigned yes;
|
|
|
|
/*
|
|
* From recovery-specific command line args.
|
|
*/
|
|
const char *restorefile; /* NULL if no --restorefile option */
|
|
const char *uuid_str; /* id in printable format, NULL if no id */
|
|
|
|
/*
|
|
* Values used by pv_create().
|
|
*/
|
|
struct pv_create_args pva;
|
|
|
|
/*
|
|
* Used for command processing.
|
|
*/
|
|
struct dm_list prompts; /* pvcreate_prompt */
|
|
struct dm_list arg_devices; /* pvcreate_device, one for each pv_name */
|
|
struct dm_list arg_process; /* pvcreate_device, used for processing */
|
|
struct dm_list arg_confirm; /* pvcreate_device, used for processing */
|
|
struct dm_list arg_create; /* pvcreate_device, used for pvcreate */
|
|
struct dm_list arg_remove; /* pvcreate_device, used for pvremove */
|
|
struct dm_list arg_fail; /* pvcreate_device, failed to create */
|
|
struct dm_list pvs; /* pv_list, created and usable for vgcreate/vgextend */
|
|
const char *orphan_vg_name;
|
|
unsigned is_remove : 1; /* is removing PVs, not creating */
|
|
unsigned preserve_existing : 1;
|
|
unsigned check_failed : 1;
|
|
};
|
|
|
|
struct lvresize_params {
|
|
int argc;
|
|
char **argv;
|
|
|
|
const char *vg_name; /* only-used when VG is not yet opened (in /tools) */
|
|
const char *lv_name;
|
|
|
|
const struct segment_type *segtype;
|
|
|
|
uint64_t poolmetadata_size;
|
|
sign_t poolmetadata_sign;
|
|
|
|
/* Per LV applied parameters */
|
|
|
|
enum {
|
|
LV_ANY = 0,
|
|
LV_REDUCE = 1,
|
|
LV_EXTEND = 2
|
|
} resize;
|
|
|
|
int use_policies;
|
|
|
|
alloc_policy_t alloc;
|
|
int force;
|
|
int nosync;
|
|
int nofsck;
|
|
int resizefs;
|
|
|
|
unsigned mirrors;
|
|
uint32_t stripes;
|
|
uint64_t stripe_size;
|
|
|
|
uint32_t extents;
|
|
uint64_t size;
|
|
sign_t sign;
|
|
percent_type_t percent;
|
|
|
|
int approx_alloc;
|
|
int extents_are_pes; /* Is 'extents' counting PEs or LEs? */
|
|
int size_changed; /* Was there actually a size change */
|
|
};
|
|
|
|
void pvcreate_params_set_defaults(struct pvcreate_params *pp);
|
|
|
|
/*
|
|
* Flags that indicate which warnings a library function should issue.
|
|
*/
|
|
#define WARN_PV_READ 0x00000001
|
|
#define WARN_INCONSISTENT 0x00000002
|
|
|
|
/*
|
|
* Utility functions
|
|
*/
|
|
int vg_write(struct volume_group *vg);
|
|
int vg_commit(struct volume_group *vg);
|
|
void vg_revert(struct volume_group *vg);
|
|
struct volume_group *vg_read_internal(struct cmd_context *cmd, const char *vg_name,
|
|
const char *vgid, uint32_t warn_flags, int *consistent);
|
|
|
|
#define get_pvs( cmd ) get_pvs_internal((cmd), NULL, NULL)
|
|
#define get_pvs_perserve_vg( cmd, pv_list, vg_list ) get_pvs_internal((cmd), (pv_list), (vg_list))
|
|
|
|
struct dm_list *get_pvs_internal(struct cmd_context *cmd,
|
|
struct dm_list *pvslist, struct dm_list *vgslist);
|
|
|
|
/*
|
|
* Add/remove LV to/from volume group
|
|
*/
|
|
int link_lv_to_vg(struct volume_group *vg, struct logical_volume *lv);
|
|
int unlink_lv_from_vg(struct logical_volume *lv);
|
|
void lv_set_visible(struct logical_volume *lv);
|
|
void lv_set_hidden(struct logical_volume *lv);
|
|
|
|
struct dm_list *get_vgnames(struct cmd_context *cmd, int include_internal);
|
|
struct dm_list *get_vgids(struct cmd_context *cmd, int include_internal);
|
|
int get_vgnameids(struct cmd_context *cmd, struct dm_list *vgnameids,
|
|
const char *only_this_vgname, int include_internal);
|
|
int scan_vgs_for_pvs(struct cmd_context *cmd, uint32_t warn_flags);
|
|
|
|
int pv_write(struct cmd_context *cmd, struct physical_volume *pv, int allow_non_orphan);
|
|
int move_pv(struct volume_group *vg_from, struct volume_group *vg_to,
|
|
const char *pv_name);
|
|
int move_pvs_used_by_lv(struct volume_group *vg_from,
|
|
struct volume_group *vg_to,
|
|
const char *lv_name);
|
|
int is_global_vg(const char *vg_name);
|
|
int is_orphan_vg(const char *vg_name);
|
|
int is_real_vg(const char *vg_name);
|
|
int vg_missing_pv_count(const struct volume_group *vg);
|
|
int vgs_are_compatible(struct cmd_context *cmd,
|
|
struct volume_group *vg_from,
|
|
struct volume_group *vg_to);
|
|
uint32_t vg_lock_newname(struct cmd_context *cmd, const char *vgname);
|
|
|
|
int lv_resize(struct logical_volume *lv,
|
|
struct lvresize_params *lp,
|
|
struct dm_list *pvh);
|
|
|
|
/*
|
|
* Return a handle to VG metadata.
|
|
*/
|
|
struct volume_group *vg_read(struct cmd_context *cmd, const char *vg_name,
|
|
const char *vgid, uint32_t read_flags, uint32_t lockd_state);
|
|
struct volume_group *vg_read_for_update(struct cmd_context *cmd, const char *vg_name,
|
|
const char *vgid, uint32_t read_flags, uint32_t lockd_state);
|
|
|
|
/*
|
|
* Test validity of a VG handle.
|
|
*/
|
|
uint32_t vg_read_error(struct volume_group *vg_handle);
|
|
|
|
/* pe_start and pe_end relate to any existing data so that new metadata
|
|
* areas can avoid overlap */
|
|
struct physical_volume *pv_create(const struct cmd_context *cmd,
|
|
struct device *dev, struct pv_create_args *pva);
|
|
|
|
int pvremove_single(struct cmd_context *cmd, const char *pv_name,
|
|
void *handle __attribute__((unused)), unsigned force_count,
|
|
unsigned prompt, struct dm_list *pvslist);
|
|
int pvremove_many(struct cmd_context *cmd, struct dm_list *pv_names,
|
|
unsigned force_count, unsigned prompt);
|
|
|
|
int pv_resize_single(struct cmd_context *cmd,
|
|
struct volume_group *vg,
|
|
struct physical_volume *pv,
|
|
const uint64_t new_size);
|
|
|
|
int pv_analyze(struct cmd_context *cmd, const char *pv_name,
|
|
uint64_t label_sector);
|
|
|
|
/* FIXME: move internal to library */
|
|
uint32_t pv_list_extents_free(const struct dm_list *pvh);
|
|
|
|
int validate_new_vg_name(struct cmd_context *cmd, const char *vg_name);
|
|
int vg_validate(struct volume_group *vg);
|
|
struct volume_group *vg_create(struct cmd_context *cmd, const char *vg_name);
|
|
struct volume_group *vg_lock_and_create(struct cmd_context *cmd, const char *vg_name);
|
|
int vg_remove_mdas(struct volume_group *vg);
|
|
int vg_remove_check(struct volume_group *vg);
|
|
void vg_remove_pvs(struct volume_group *vg);
|
|
int vg_remove_direct(struct volume_group *vg);
|
|
int vg_remove(struct volume_group *vg);
|
|
int vg_rename(struct cmd_context *cmd, struct volume_group *vg,
|
|
const char *new_name);
|
|
int vg_extend(struct volume_group *vg, int pv_count, const char *const *pv_names,
|
|
struct pvcreate_params *pp);
|
|
int vg_extend_each_pv(struct volume_group *vg, struct pvcreate_params *pp);
|
|
int vg_reduce(struct volume_group *vg, const char *pv_name);
|
|
|
|
int vgreduce_single(struct cmd_context *cmd, struct volume_group *vg,
|
|
struct physical_volume *pv, int commit);
|
|
|
|
int vg_change_tag(struct volume_group *vg, const char *tag, int add_tag);
|
|
int vg_split_mdas(struct cmd_context *cmd, struct volume_group *vg_from,
|
|
struct volume_group *vg_to);
|
|
/* FIXME: Investigate refactoring these functions to take a pv ISO pv_list */
|
|
void add_pvl_to_vgs(struct volume_group *vg, struct pv_list *pvl);
|
|
void del_pvl_from_vgs(struct volume_group *vg, struct pv_list *pvl);
|
|
|
|
/*
|
|
* free_pv_fid() must be called on every struct physical_volume allocated
|
|
* by pv_create, pv_read, find_pv_by_name or to free it when no longer required.
|
|
*/
|
|
void free_pv_fid(struct physical_volume *pv);
|
|
|
|
/* Manipulate LVs */
|
|
struct logical_volume *lv_create_empty(const char *name,
|
|
union lvid *lvid,
|
|
uint64_t status,
|
|
alloc_policy_t alloc,
|
|
struct volume_group *vg);
|
|
|
|
struct wipe_params {
|
|
int do_zero; /* should we do zeroing of LV start? */
|
|
uint64_t zero_sectors; /* sector count to zero */
|
|
int zero_value; /* zero-out with this value */
|
|
int do_wipe_signatures; /* should we wipe known signatures found on LV? */
|
|
int yes; /* answer yes automatically to all questions */
|
|
force_t force; /* force mode */
|
|
};
|
|
|
|
/* Zero out LV and/or wipe signatures */
|
|
int wipe_lv(struct logical_volume *lv, struct wipe_params params);
|
|
|
|
int lv_change_tag(struct logical_volume *lv, const char *tag, int add_tag);
|
|
|
|
/* Reduce the size of an LV by extents */
|
|
int lv_reduce(struct logical_volume *lv, uint32_t extents);
|
|
|
|
/* Empty an LV prior to deleting it */
|
|
int lv_empty(struct logical_volume *lv);
|
|
|
|
/* Empty an LV and add error segment */
|
|
int replace_lv_with_error_segment(struct logical_volume *lv);
|
|
|
|
int lv_refresh_suspend_resume(const struct logical_volume *lv);
|
|
|
|
/* Entry point for all LV extent allocations */
|
|
int lv_extend(struct logical_volume *lv,
|
|
const struct segment_type *segtype,
|
|
uint32_t stripes, uint32_t stripe_size,
|
|
uint32_t mirrors, uint32_t region_size,
|
|
uint32_t extents,
|
|
struct dm_list *allocatable_pvs, alloc_policy_t alloc,
|
|
int approx_alloc);
|
|
|
|
/* lv must be part of lv->vg->lvs */
|
|
int lv_remove(struct logical_volume *lv);
|
|
|
|
/* historical_glv must be part of lv->vg->historical_lvs */
|
|
int historical_glv_remove(struct generic_logical_volume *historical_glv);
|
|
|
|
int lv_remove_single(struct cmd_context *cmd, struct logical_volume *lv,
|
|
force_t force, int suppress_remove_message);
|
|
|
|
int lv_remove_with_dependencies(struct cmd_context *cmd, struct logical_volume *lv,
|
|
force_t force, unsigned level);
|
|
|
|
int lv_rename(struct cmd_context *cmd, struct logical_volume *lv,
|
|
const char *new_name);
|
|
int lv_rename_update(struct cmd_context *cmd, struct logical_volume *lv,
|
|
const char *new_name, int update_mda);
|
|
|
|
/* Updates and reloads metadata for given lv */
|
|
int lv_update_and_reload(struct logical_volume *lv);
|
|
int lv_update_and_reload_origin(struct logical_volume *lv);
|
|
|
|
uint32_t extents_from_size(struct cmd_context *cmd, uint64_t size,
|
|
uint32_t extent_size);
|
|
uint32_t extents_from_percent_size(struct volume_group *vg, const struct dm_list *pvh,
|
|
uint32_t extents, int roundup,
|
|
percent_type_t percent, uint64_t size);
|
|
|
|
struct logical_volume *find_pool_lv(const struct logical_volume *lv);
|
|
int pool_is_active(const struct logical_volume *pool_lv);
|
|
int pool_supports_external_origin(const struct lv_segment *pool_seg, const struct logical_volume *external_lv);
|
|
int thin_pool_feature_supported(const struct logical_volume *pool_lv, int feature);
|
|
int recalculate_pool_chunk_size_with_dev_hints(struct logical_volume *pool_lv,
|
|
int passed_args,
|
|
int chunk_size_calc_policy);
|
|
int validate_pool_chunk_size(struct cmd_context *cmd, const struct segment_type *segtype, uint32_t chunk_size);
|
|
int update_pool_lv(struct logical_volume *lv, int activate);
|
|
int update_pool_params(const struct segment_type *segtype,
|
|
struct volume_group *vg, unsigned target_attr,
|
|
int passed_args, uint32_t pool_data_extents,
|
|
uint32_t *pool_metadata_extents,
|
|
int *chunk_size_calc_policy, uint32_t *chunk_size,
|
|
thin_discards_t *discards, int *zero);
|
|
int update_profilable_pool_params(struct cmd_context *cmd, struct profile *profile,
|
|
int passed_args, int *chunk_size_calc_method,
|
|
uint32_t *chunk_size, thin_discards_t *discards,
|
|
int *zero);
|
|
int update_thin_pool_params(const struct segment_type *segtype,
|
|
struct volume_group *vg, unsigned attr,
|
|
int passed_args, uint32_t pool_data_extents,
|
|
uint32_t *pool_metadata_extents,
|
|
int *chunk_size_calc_method, uint32_t *chunk_size,
|
|
thin_discards_t *discards, int *zero);
|
|
const char *get_pool_discards_name(thin_discards_t discards);
|
|
int set_pool_discards(thin_discards_t *discards, const char *str);
|
|
struct logical_volume *alloc_pool_metadata(struct logical_volume *pool_lv,
|
|
const char *name, uint32_t read_ahead,
|
|
uint32_t stripes, uint32_t stripe_size,
|
|
uint32_t extents, alloc_policy_t alloc,
|
|
struct dm_list *pvh);
|
|
int handle_pool_metadata_spare(struct volume_group *vg, uint32_t extents,
|
|
struct dm_list *pvh, int poolmetadataspare);
|
|
int vg_set_pool_metadata_spare(struct logical_volume *lv);
|
|
int vg_remove_pool_metadata_spare(struct volume_group *vg);
|
|
|
|
int attach_thin_external_origin(struct lv_segment *seg,
|
|
struct logical_volume *external_lv);
|
|
int detach_thin_external_origin(struct lv_segment *seg);
|
|
int attach_pool_metadata_lv(struct lv_segment *pool_seg,
|
|
struct logical_volume *pool_metadata_lv);
|
|
int detach_pool_metadata_lv(struct lv_segment *pool_seg,
|
|
struct logical_volume **pool_metadata_lv);
|
|
int attach_pool_data_lv(struct lv_segment *pool_seg,
|
|
struct logical_volume *pool_data_lv);
|
|
int is_mirror_image_removable(struct logical_volume *mimage_lv, void *baton);
|
|
|
|
/*
|
|
* Activation options
|
|
*/
|
|
typedef enum activation_change {
|
|
CHANGE_AY = 0, /* activate */
|
|
CHANGE_AN = 1, /* deactivate */
|
|
CHANGE_AEY = 2, /* activate exclusively */
|
|
CHANGE_ALY = 3, /* activate locally */
|
|
CHANGE_ALN = 4, /* deactivate locally */
|
|
CHANGE_AAY = 5, /* automatic activation */
|
|
CHANGE_ASY = 6 /* activate shared */
|
|
} activation_change_t;
|
|
|
|
/* Returns true, when change activates device */
|
|
static inline int is_change_activating(activation_change_t change)
|
|
{
|
|
return ((change != CHANGE_AN) && (change != CHANGE_ALN));
|
|
}
|
|
|
|
/* FIXME: refactor and reduce the size of this struct! */
|
|
struct lvcreate_params {
|
|
/* flags */
|
|
int snapshot; /* snap */
|
|
int create_pool; /* pools */
|
|
int zero; /* all */
|
|
int wipe_signatures; /* all */
|
|
int32_t major; /* all */
|
|
int32_t minor; /* all */
|
|
int log_count; /* mirror */
|
|
int nosync; /* mirror */
|
|
int pool_metadata_spare; /* pools */
|
|
int type; /* type arg is given */
|
|
int temporary; /* temporary LV */
|
|
#define ACTIVATION_SKIP_SET 0x01 /* request to set LV activation skip flag state */
|
|
#define ACTIVATION_SKIP_SET_ENABLED 0x02 /* set the LV activation skip flag state to 'enabled' */
|
|
#define ACTIVATION_SKIP_IGNORE 0x04 /* request to ignore LV activation skip flag (if any) */
|
|
int activation_skip; /* activation skip flags */
|
|
activation_change_t activate; /* non-snapshot, non-mirror */
|
|
thin_discards_t discards; /* thin */
|
|
#define THIN_CHUNK_SIZE_CALC_METHOD_GENERIC 0x01
|
|
#define THIN_CHUNK_SIZE_CALC_METHOD_PERFORMANCE 0x02
|
|
int thin_chunk_size_calc_policy;
|
|
unsigned suppress_zero_warn : 1;
|
|
unsigned needs_lockd_init : 1;
|
|
|
|
const char *vg_name; /* only-used when VG is not yet opened (in /tools) */
|
|
const char *lv_name; /* all */
|
|
const char *origin_name; /* snap */
|
|
const char *pool_name; /* thin */
|
|
|
|
const char *lock_args;
|
|
|
|
/* Keep args given by the user on command line */
|
|
/* FIXME: create some more universal solution here */
|
|
#define PASS_ARG_CHUNK_SIZE 0x01
|
|
#define PASS_ARG_DISCARDS 0x02
|
|
#define PASS_ARG_POOL_METADATA_SIZE 0x04
|
|
#define PASS_ARG_ZERO 0x08
|
|
int passed_args;
|
|
|
|
uint32_t stripes; /* striped */
|
|
uint32_t stripe_size; /* striped */
|
|
uint32_t chunk_size; /* snapshot */
|
|
uint32_t region_size; /* mirror */
|
|
|
|
uint32_t mirrors; /* mirror */
|
|
|
|
uint32_t min_recovery_rate; /* RAID */
|
|
uint32_t max_recovery_rate; /* RAID */
|
|
|
|
cache_mode_t cache_mode; /* cache */
|
|
const char *policy_name; /* cache */
|
|
struct dm_config_tree *policy_settings; /* cache */
|
|
|
|
const struct segment_type *segtype; /* all */
|
|
unsigned target_attr; /* all */
|
|
|
|
/* size */
|
|
uint32_t extents; /* all */
|
|
uint32_t pool_metadata_extents; /* pools */
|
|
uint64_t pool_metadata_size; /* pools */
|
|
uint32_t pool_data_extents; /* pools */
|
|
uint64_t pool_data_size; /* pools */
|
|
uint32_t virtual_extents; /* snapshots, thins */
|
|
struct dm_list *pvh; /* all */
|
|
|
|
uint64_t permission; /* all */
|
|
unsigned error_when_full; /* when segment supports it */
|
|
uint32_t read_ahead; /* all */
|
|
int approx_alloc; /* all */
|
|
alloc_policy_t alloc; /* all */
|
|
|
|
struct dm_list tags; /* all */
|
|
|
|
int yes;
|
|
force_t force;
|
|
};
|
|
|
|
struct logical_volume *lv_create_single(struct volume_group *vg,
|
|
struct lvcreate_params *lp);
|
|
|
|
/*
|
|
* The activation can be skipped for selected LVs. Some LVs are skipped
|
|
* by default (e.g. thin snapshots), others can be skipped on demand by
|
|
* overriding the default behaviour. The flag that causes the activation
|
|
* skip on next activations is stored directly in metadata for each LV
|
|
* as ACTIVATION_SKIP flag.
|
|
*/
|
|
void lv_set_activation_skip(struct logical_volume *lv, int override_default, int add_skip_flag);
|
|
int lv_activation_skip(struct logical_volume *lv, activation_change_t activate,
|
|
int override_lv_skip_flag);
|
|
|
|
/*
|
|
* Functions for layer manipulation
|
|
*/
|
|
int insert_layer_for_segments_on_pv(struct cmd_context *cmd,
|
|
struct logical_volume *lv_where,
|
|
struct logical_volume *layer_lv,
|
|
uint64_t status,
|
|
struct pv_list *pv,
|
|
struct dm_list *lvs_changed);
|
|
int remove_layers_for_segments(struct cmd_context *cmd,
|
|
struct logical_volume *lv,
|
|
struct logical_volume *layer_lv,
|
|
uint64_t status_mask, struct dm_list *lvs_changed);
|
|
int remove_layers_for_segments_all(struct cmd_context *cmd,
|
|
struct logical_volume *layer_lv,
|
|
uint64_t status_mask,
|
|
struct dm_list *lvs_changed);
|
|
int split_parent_segments_for_layer(struct cmd_context *cmd,
|
|
struct logical_volume *layer_lv);
|
|
int remove_layer_from_lv(struct logical_volume *lv,
|
|
struct logical_volume *layer_lv);
|
|
struct logical_volume *insert_layer_for_lv(struct cmd_context *cmd,
|
|
struct logical_volume *lv_where,
|
|
uint64_t status,
|
|
const char *layer_suffix);
|
|
|
|
/* Find a PV within a given VG */
|
|
struct pv_list *find_pv_in_vg(const struct volume_group *vg,
|
|
const char *pv_name);
|
|
struct pv_list *find_pv_in_vg_by_uuid(const struct volume_group *vg,
|
|
const struct id *id);
|
|
|
|
/* Find an LV within a given VG */
|
|
struct lv_list *find_lv_in_vg(const struct volume_group *vg,
|
|
const char *lv_name);
|
|
|
|
/* FIXME Merge these functions with ones above */
|
|
struct logical_volume *find_lv(const struct volume_group *vg,
|
|
const char *lv_name);
|
|
|
|
struct generic_logical_volume *find_historical_glv(const struct volume_group *vg,
|
|
const char *historical_lv_name,
|
|
int check_removed_list,
|
|
struct glv_list **glvl_found);
|
|
|
|
int lv_name_is_used_in_vg(const struct volume_group *vg, const char *name, int *historical);
|
|
|
|
struct physical_volume *find_pv_by_name(struct cmd_context *cmd,
|
|
const char *pv_name,
|
|
int allow_orphan, int allow_unformatted);
|
|
|
|
const char *find_vgname_from_pvname(struct cmd_context *cmd,
|
|
const char *pvname);
|
|
const char *find_vgname_from_pvid(struct cmd_context *cmd,
|
|
const char *pvid);
|
|
|
|
int lv_is_on_pv(struct logical_volume *lv, struct physical_volume *pv);
|
|
int lv_is_on_pvs(struct logical_volume *lv, struct dm_list *pvs);
|
|
int get_pv_list_for_lv(struct dm_pool *mem,
|
|
struct logical_volume *lv, struct dm_list *pvs);
|
|
|
|
|
|
/* Find LV segment containing given LE */
|
|
struct lv_segment *first_seg(const struct logical_volume *lv);
|
|
struct lv_segment *last_seg(const struct logical_volume *lv);
|
|
struct lv_segment *get_only_segment_using_this_lv(const struct logical_volume *lv);
|
|
|
|
/*
|
|
* Useful functions for managing snapshots.
|
|
*/
|
|
int lv_is_origin(const struct logical_volume *lv);
|
|
int lv_is_thin_origin(const struct logical_volume *lv, unsigned *snap_count);
|
|
int lv_is_cache_origin(const struct logical_volume *lv);
|
|
int lv_is_cow(const struct logical_volume *lv);
|
|
int lv_is_merging_cow(const struct logical_volume *cow);
|
|
uint32_t cow_max_extents(const struct logical_volume *origin, uint32_t chunk_size);
|
|
int cow_has_min_chunks(const struct volume_group *vg, uint32_t cow_extents, uint32_t chunk_size);
|
|
int lv_is_cow_covering_origin(const struct logical_volume *lv);
|
|
|
|
/* Test if given LV is visible from user's perspective */
|
|
int lv_is_visible(const struct logical_volume *lv);
|
|
|
|
int lv_is_historical(const struct logical_volume *lv);
|
|
|
|
int pv_is_in_vg(struct volume_group *vg, struct physical_volume *pv);
|
|
|
|
/* Given a cow or thin LV, return the snapshot lv_segment that uses it */
|
|
struct lv_segment *find_snapshot(const struct logical_volume *lv);
|
|
|
|
/* Given a cow LV, return its origin */
|
|
struct logical_volume *origin_from_cow(const struct logical_volume *lv);
|
|
|
|
/* Given an internal snapshot LV, return its cow */
|
|
struct logical_volume *find_cow(const struct logical_volume *snap);
|
|
|
|
void init_snapshot_seg(struct lv_segment *seg, struct logical_volume *origin,
|
|
struct logical_volume *cow, uint32_t chunk_size, int merge);
|
|
|
|
void init_snapshot_merge(struct lv_segment *snap_seg, struct logical_volume *origin);
|
|
|
|
void clear_snapshot_merge(struct logical_volume *origin);
|
|
|
|
int vg_add_snapshot(struct logical_volume *origin, struct logical_volume *cow,
|
|
union lvid *lvid, uint32_t extent_count,
|
|
uint32_t chunk_size);
|
|
|
|
int vg_remove_snapshot(struct logical_volume *cow);
|
|
|
|
int vg_check_status(const struct volume_group *vg, uint64_t status);
|
|
|
|
int vg_check_pv_dev_block_sizes(const struct volume_group *vg);
|
|
|
|
/*
|
|
* Check if the VG reached maximal LVs count (if set)
|
|
*/
|
|
int vg_max_lv_reached(struct volume_group *vg);
|
|
|
|
/*
|
|
* Mirroring functions
|
|
*/
|
|
int get_default_region_size(struct cmd_context *cmd); /* in lv_manip.c */
|
|
struct lv_segment *find_mirror_seg(struct lv_segment *seg);
|
|
int lv_add_mirrors(struct cmd_context *cmd, struct logical_volume *lv,
|
|
uint32_t mirrors, uint32_t stripes, uint32_t stripe_size,
|
|
uint32_t region_size, uint32_t log_count,
|
|
struct dm_list *pvs, alloc_policy_t alloc, uint32_t flags);
|
|
int lv_split_mirror_images(struct logical_volume *lv, const char *split_lv_name,
|
|
uint32_t split_count, struct dm_list *removable_pvs);
|
|
int lv_remove_mirrors(struct cmd_context *cmd, struct logical_volume *lv,
|
|
uint32_t mirrors, uint32_t log_count,
|
|
int (*is_removable)(struct logical_volume *, void *),
|
|
void *removable_baton, uint64_t status_mask);
|
|
const char *get_mirror_log_name(int log_count);
|
|
int set_mirror_log_count(int *log_count, const char *mirrorlog);
|
|
|
|
int cluster_mirror_is_available(struct cmd_context *cmd);
|
|
int is_temporary_mirror_layer(const struct logical_volume *lv);
|
|
struct logical_volume * find_temporary_mirror(const struct logical_volume *lv);
|
|
uint32_t lv_mirror_count(const struct logical_volume *lv);
|
|
|
|
/* Remove CMIRROR_REGION_COUNT_LIMIT when http://bugzilla.redhat.com/682771 is fixed */
|
|
#define CMIRROR_REGION_COUNT_LIMIT (256*1024 * 8)
|
|
uint32_t adjusted_mirror_region_size(uint32_t extent_size, uint32_t extents,
|
|
uint32_t region_size, int internal, int clustered);
|
|
|
|
int remove_mirrors_from_segments(struct logical_volume *lv,
|
|
uint32_t new_mirrors, uint64_t status_mask);
|
|
int add_mirrors_to_segments(struct cmd_context *cmd, struct logical_volume *lv,
|
|
uint32_t mirrors, uint32_t region_size,
|
|
struct dm_list *allocatable_pvs, alloc_policy_t alloc);
|
|
|
|
int remove_mirror_images(struct logical_volume *lv, uint32_t num_mirrors,
|
|
int (*is_removable)(struct logical_volume *, void *),
|
|
void *removable_baton, unsigned remove_log);
|
|
int add_mirror_images(struct cmd_context *cmd, struct logical_volume *lv,
|
|
uint32_t mirrors, uint32_t stripes, uint32_t stripe_size, uint32_t region_size,
|
|
struct dm_list *allocatable_pvs, alloc_policy_t alloc,
|
|
uint32_t log_count);
|
|
struct logical_volume *detach_mirror_log(struct lv_segment *seg);
|
|
int attach_mirror_log(struct lv_segment *seg, struct logical_volume *lv);
|
|
int remove_mirror_log(struct cmd_context *cmd, struct logical_volume *lv,
|
|
struct dm_list *removable_pvs, int force);
|
|
int add_mirror_log(struct cmd_context *cmd, struct logical_volume *lv,
|
|
uint32_t log_count, uint32_t region_size,
|
|
struct dm_list *allocatable_pvs, alloc_policy_t alloc);
|
|
|
|
#if 0
|
|
/* FIXME: reconfigure_mirror_images: remove this code? */
|
|
int reconfigure_mirror_images(struct lv_segment *mirrored_seg, uint32_t num_mirrors,
|
|
struct dm_list *removable_pvs, unsigned remove_log);
|
|
#endif
|
|
int collapse_mirrored_lv(struct logical_volume *lv);
|
|
int shift_mirror_images(struct lv_segment *mirrored_seg, unsigned mimage);
|
|
|
|
/* ++ metadata/replicator_manip.c */
|
|
int replicator_add_replicator_dev(struct logical_volume *replicator_lv,
|
|
struct lv_segment *rdev_seg);
|
|
struct logical_volume *replicator_remove_replicator_dev(struct lv_segment *rdev_seg);
|
|
int replicator_add_rlog(struct lv_segment *replicator_seg, struct logical_volume *rlog_lv);
|
|
struct logical_volume *replicator_remove_rlog(struct lv_segment *replicator_seg);
|
|
|
|
int replicator_dev_add_slog(struct replicator_device *rdev, struct logical_volume *slog_lv);
|
|
struct logical_volume *replicator_dev_remove_slog(struct replicator_device *rdev);
|
|
int replicator_dev_add_rimage(struct replicator_device *rdev, struct logical_volume *lv);
|
|
struct logical_volume *replicator_dev_remove_rimage(struct replicator_device *rdev);
|
|
|
|
int lv_is_active_replicator_dev(const struct logical_volume *lv);
|
|
int lv_is_replicator(const struct logical_volume *lv);
|
|
int lv_is_replicator_dev(const struct logical_volume *lv);
|
|
int lv_is_rimage(const struct logical_volume *lv);
|
|
int lv_is_slog(const struct logical_volume *lv);
|
|
struct logical_volume *first_replicator_dev(const struct logical_volume *lv);
|
|
/* -- metadata/replicator_manip.c */
|
|
|
|
/* ++ metadata/raid_manip.c */
|
|
int lv_is_raid_with_tracking(const struct logical_volume *lv);
|
|
uint32_t lv_raid_image_count(const struct logical_volume *lv);
|
|
int lv_raid_change_image_count(struct logical_volume *lv,
|
|
uint32_t new_count, struct dm_list *allocate_pvs);
|
|
int lv_raid_split(struct logical_volume *lv, const char *split_name,
|
|
uint32_t new_count, struct dm_list *splittable_pvs);
|
|
int lv_raid_split_and_track(struct logical_volume *lv,
|
|
struct dm_list *splittable_pvs);
|
|
int lv_raid_merge(struct logical_volume *lv);
|
|
int lv_raid_convert(struct logical_volume *lv,
|
|
const struct segment_type *new_segtype,
|
|
int yes, int force,
|
|
const unsigned stripes,
|
|
const unsigned new_stripe_size_supplied,
|
|
const unsigned new_stripe_size,
|
|
const uint32_t new_region_size,
|
|
struct dm_list *allocate_pvs);
|
|
int lv_raid_rebuild(struct logical_volume *lv, struct dm_list *rebuild_pvs);
|
|
int lv_raid_replace(struct logical_volume *lv, struct dm_list *remove_pvs,
|
|
struct dm_list *allocate_pvs);
|
|
int lv_raid_remove_missing(struct logical_volume *lv);
|
|
int partial_raid_lv_supports_degraded_activation(const struct logical_volume *lv);
|
|
/* -- metadata/raid_manip.c */
|
|
|
|
/* ++ metadata/cache_manip.c */
|
|
struct lv_status_cache {
|
|
struct dm_pool *mem;
|
|
struct dm_status_cache *cache;
|
|
dm_percent_t data_usage;
|
|
dm_percent_t metadata_usage;
|
|
dm_percent_t dirty_usage;
|
|
};
|
|
|
|
const char *display_cache_mode(const struct lv_segment *seg);
|
|
const char *get_cache_mode_name(const struct lv_segment *cache_seg);
|
|
int set_cache_mode(cache_mode_t *mode, const char *cache_mode);
|
|
int cache_set_cache_mode(struct lv_segment *cache_seg, cache_mode_t mode);
|
|
int cache_set_policy(struct lv_segment *cache_seg, const char *name,
|
|
const struct dm_config_tree *settings);
|
|
int cache_set_params(struct lv_segment *seg,
|
|
cache_mode_t mode,
|
|
const char *policy_name,
|
|
const struct dm_config_tree *policy_settings,
|
|
uint32_t chunk_size);
|
|
void cache_check_for_warns(const struct lv_segment *seg);
|
|
int update_cache_pool_params(const struct segment_type *segtype,
|
|
struct volume_group *vg, unsigned attr,
|
|
int passed_args, uint32_t pool_data_extents,
|
|
uint32_t *pool_metadata_extents,
|
|
int *chunk_size_calc_method, uint32_t *chunk_size);
|
|
int validate_lv_cache_chunk_size(struct logical_volume *pool_lv, uint32_t chunk_size);
|
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int validate_lv_cache_create_pool(const struct logical_volume *pool_lv);
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int validate_lv_cache_create_origin(const struct logical_volume *origin_lv);
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struct logical_volume *lv_cache_create(struct logical_volume *pool,
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struct logical_volume *origin);
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int lv_cache_wait_for_clean(struct logical_volume *cache_lv, int *is_clean);
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int lv_cache_remove(struct logical_volume *cache_lv);
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int wipe_cache_pool(struct logical_volume *cache_pool_lv);
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/* -- metadata/cache_manip.c */
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struct cmd_vg *cmd_vg_add(struct dm_pool *mem, struct dm_list *cmd_vgs,
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const char *vg_name, const char *vgid,
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uint32_t flags);
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struct cmd_vg *cmd_vg_lookup(struct dm_list *cmd_vgs,
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const char *vg_name, const char *vgid);
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int cmd_vg_read(struct cmd_context *cmd, struct dm_list *cmd_vgs);
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void free_cmd_vgs(struct dm_list *cmd_vgs);
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int find_replicator_vgs(const struct logical_volume *lv);
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int lv_read_replicator_vgs(const struct logical_volume *lv);
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void lv_release_replicator_vgs(const struct logical_volume *lv);
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struct logical_volume *find_pvmove_lv(struct volume_group *vg,
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struct device *dev, uint64_t lv_type);
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const struct logical_volume *find_pvmove_lv_in_lv(const struct logical_volume *lv);
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const char *get_pvmove_pvname_from_lv(const struct logical_volume *lv);
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const char *get_pvmove_pvname_from_lv_mirr(const struct logical_volume *lv_mirr);
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struct dm_list *lvs_using_lv(struct cmd_context *cmd, struct volume_group *vg,
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struct logical_volume *lv);
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uint32_t find_free_lvnum(struct logical_volume *lv);
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dm_percent_t copy_percent(const struct logical_volume *lv_mirr);
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char *generate_lv_name(struct volume_group *vg, const char *format,
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char *buffer, size_t len);
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|
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struct generic_logical_volume *get_or_create_glv(struct dm_pool *mem, struct logical_volume *lv, int *glv_created);
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struct glv_list *get_or_create_glvl(struct dm_pool *mem, struct logical_volume *lv, int *glv_created);
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|
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/*
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* Begin skeleton for external LVM library
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|
*/
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int pv_change_metadataignore(struct physical_volume *pv, uint32_t mda_ignore);
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int vg_flag_write_locked(struct volume_group *vg);
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int vg_check_write_mode(struct volume_group *vg);
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#define vg_is_clustered(vg) ((vg_status((vg)) & CLUSTERED) ? 1 : 0)
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#define vg_is_exported(vg) ((vg_status((vg)) & EXPORTED_VG) ? 1 : 0)
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#define vg_is_resizeable(vg) ((vg_status((vg)) & RESIZEABLE_VG) ? 1 : 0)
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int lv_has_unknown_segments(const struct logical_volume *lv);
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int vg_has_unknown_segments(const struct volume_group *vg);
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|
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int vg_mark_partial_lvs(struct volume_group *vg, int clear);
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|
|
|
struct vgcreate_params {
|
|
const char *vg_name;
|
|
uint32_t extent_size;
|
|
size_t max_pv;
|
|
size_t max_lv;
|
|
alloc_policy_t alloc;
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int clustered; /* FIXME: put this into a 'status' variable instead? */
|
|
uint32_t vgmetadatacopies;
|
|
const char *system_id;
|
|
const char *lock_type;
|
|
const char *lock_args;
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|
};
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|
|
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int validate_major_minor(const struct cmd_context *cmd,
|
|
const struct format_type *fmt,
|
|
int32_t major, int32_t minor);
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|
int vgcreate_params_validate(struct cmd_context *cmd,
|
|
struct vgcreate_params *vp);
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|
|
|
int validate_vg_rename_params(struct cmd_context *cmd,
|
|
const char *vg_name_old,
|
|
const char *vg_name_new);
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|
|
|
int is_lockd_type(const char *lock_type);
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|
|
|
int is_system_id_allowed(struct cmd_context *cmd, const char *system_id);
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|
|
|
int vg_strip_outdated_historical_lvs(struct volume_group *vg);
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|
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#endif
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