mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-21 13:34:40 +03:00
c6f48b7c1a
Changes: - move device type registration out of "type filter" (filter.c) to a separate and new dev-type.[ch] for common use throughout the code - the structure for keeping the major numbers detected for available device types and available partitioning available is stored in "dev_types" structure now - move common partitioning detection code to dev-type.[ch] as well together with other device-related functions bound to dev_types (see dev-type.h for the interface) The dev-type interface contains all common functions used to detect subsystems/device types, signature/superblock recognition code, type-specific device properties and other common device properties (bound to dev_types), including partitioning support. - add dev_types instance to cmd context as cmd->dev_types for common use - use cmd->dev_types throughout as a central point for providing information about device types
161 lines
6.5 KiB
C
161 lines
6.5 KiB
C
/*
|
|
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
|
|
* Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
|
|
*
|
|
* This file is part of LVM2.
|
|
*
|
|
* This copyrighted material is made available to anyone wishing to use,
|
|
* modify, copy, or redistribute it subject to the terms and conditions
|
|
* of the GNU Lesser General Public License v.2.1.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef _LVM_CACHE_H
|
|
#define _LVM_CACHE_H
|
|
|
|
#include "dev-cache.h"
|
|
#include "dev-type.h"
|
|
#include "uuid.h"
|
|
#include "label.h"
|
|
#include "locking.h"
|
|
|
|
#define ORPHAN_PREFIX VG_ORPHANS
|
|
#define ORPHAN_VG_NAME(fmt) ORPHAN_PREFIX "_" fmt
|
|
|
|
/* LVM specific per-volume info */
|
|
/* Eventual replacement for struct physical_volume perhaps? */
|
|
|
|
struct cmd_context;
|
|
struct format_type;
|
|
struct volume_group;
|
|
struct physical_volume;
|
|
struct dm_config_tree;
|
|
struct format_instance;
|
|
struct metadata_area;
|
|
struct disk_locn;
|
|
|
|
struct lvmcache_vginfo;
|
|
|
|
int lvmcache_init(void);
|
|
void lvmcache_allow_reads_with_lvmetad(void);
|
|
|
|
void lvmcache_destroy(struct cmd_context *cmd, int retain_orphans);
|
|
|
|
/* Set full_scan to 1 to reread every filtered device label or
|
|
* 2 to rescan /dev for new devices */
|
|
int lvmcache_label_scan(struct cmd_context *cmd, int full_scan);
|
|
|
|
/* Add/delete a device */
|
|
struct lvmcache_info *lvmcache_add(struct labeller *labeller, const char *pvid,
|
|
struct device *dev,
|
|
const char *vgname, const char *vgid,
|
|
uint32_t vgstatus);
|
|
int lvmcache_add_orphan_vginfo(const char *vgname, struct format_type *fmt);
|
|
void lvmcache_del(struct lvmcache_info *info);
|
|
|
|
/* Update things */
|
|
int lvmcache_update_vgname_and_id(struct lvmcache_info *info,
|
|
const char *vgname, const char *vgid,
|
|
uint32_t vgstatus, const char *hostname);
|
|
int lvmcache_update_vg(struct volume_group *vg, unsigned precommitted);
|
|
|
|
void lvmcache_lock_vgname(const char *vgname, int read_only);
|
|
void lvmcache_unlock_vgname(const char *vgname);
|
|
int lvmcache_verify_lock_order(const char *vgname);
|
|
|
|
/* Queries */
|
|
const struct format_type *lvmcache_fmt_from_vgname(struct cmd_context *cmd, const char *vgname, const char *vgid, unsigned revalidate_labels);
|
|
|
|
/* Decrement and test if there are still vg holders in vginfo. */
|
|
int lvmcache_vginfo_holders_dec_and_test_for_zero(struct lvmcache_vginfo *vginfo);
|
|
|
|
struct lvmcache_vginfo *lvmcache_vginfo_from_vgname(const char *vgname,
|
|
const char *vgid);
|
|
struct lvmcache_vginfo *lvmcache_vginfo_from_vgid(const char *vgid);
|
|
struct lvmcache_info *lvmcache_info_from_pvid(const char *pvid, int valid_only);
|
|
const char *lvmcache_vgname_from_vgid(struct dm_pool *mem, const char *vgid);
|
|
struct device *lvmcache_device_from_pvid(struct cmd_context *cmd, const struct id *pvid,
|
|
unsigned *scan_done_once, uint64_t *label_sector);
|
|
const char *lvmcache_pvid_from_devname(struct cmd_context *cmd,
|
|
const char *dev_name);
|
|
char *lvmcache_vgname_from_pvid(struct cmd_context *cmd, const char *pvid);
|
|
const char *lvmcache_vgname_from_info(struct lvmcache_info *info);
|
|
int lvmcache_vgs_locked(void);
|
|
int lvmcache_vgname_is_locked(const char *vgname);
|
|
|
|
void lvmcache_seed_infos_from_lvmetad(struct cmd_context *cmd);
|
|
|
|
/* Returns list of struct str_lists containing pool-allocated copy of vgnames */
|
|
/* If include_internal is not set, return only proper vg names. */
|
|
struct dm_list *lvmcache_get_vgnames(struct cmd_context *cmd,
|
|
int include_internal);
|
|
|
|
/* Returns list of struct str_lists containing pool-allocated copy of vgids */
|
|
/* If include_internal is not set, return only proper vg ids. */
|
|
struct dm_list *lvmcache_get_vgids(struct cmd_context *cmd,
|
|
int include_internal);
|
|
|
|
/* Returns list of struct str_lists containing pool-allocated copy of pvids */
|
|
struct dm_list *lvmcache_get_pvids(struct cmd_context *cmd, const char *vgname,
|
|
const char *vgid);
|
|
|
|
/* Returns cached volume group metadata. */
|
|
struct volume_group *lvmcache_get_vg(struct cmd_context *cmd, const char *vgname,
|
|
const char *vgid, unsigned precommitted);
|
|
void lvmcache_drop_metadata(const char *vgname, int drop_precommitted);
|
|
void lvmcache_commit_metadata(const char *vgname);
|
|
|
|
int lvmcache_pvid_is_locked(const char *pvid);
|
|
int lvmcache_fid_add_mdas(struct lvmcache_info *info, struct format_instance *fid,
|
|
const char *id, int id_len);
|
|
int lvmcache_fid_add_mdas_pv(struct lvmcache_info *info, struct format_instance *fid);
|
|
int lvmcache_fid_add_mdas_vg(struct lvmcache_vginfo *vginfo, struct format_instance *fid);
|
|
int lvmcache_populate_pv_fields(struct lvmcache_info *info,
|
|
struct physical_volume *pv,
|
|
int scan_label_only);
|
|
int lvmcache_check_format(struct lvmcache_info *info, const struct format_type *fmt);
|
|
void lvmcache_del_mdas(struct lvmcache_info *info);
|
|
void lvmcache_del_das(struct lvmcache_info *info);
|
|
void lvmcache_del_bas(struct lvmcache_info *info);
|
|
int lvmcache_add_mda(struct lvmcache_info *info, struct device *dev,
|
|
uint64_t start, uint64_t size, unsigned ignored);
|
|
int lvmcache_add_da(struct lvmcache_info *info, uint64_t start, uint64_t size);
|
|
int lvmcache_add_ba(struct lvmcache_info *info, uint64_t start, uint64_t size);
|
|
|
|
const struct format_type *lvmcache_fmt(struct lvmcache_info *info);
|
|
struct label *lvmcache_get_label(struct lvmcache_info *info);
|
|
|
|
void lvmcache_update_pv(struct lvmcache_info *info, struct physical_volume *pv,
|
|
const struct format_type *fmt);
|
|
int lvmcache_update_das(struct lvmcache_info *info, struct physical_volume *pv);
|
|
int lvmcache_update_bas(struct lvmcache_info *info, struct physical_volume *pv);
|
|
int lvmcache_foreach_mda(struct lvmcache_info *info,
|
|
int (*fun)(struct metadata_area *, void *),
|
|
void *baton);
|
|
|
|
int lvmcache_foreach_da(struct lvmcache_info *info,
|
|
int (*fun)(struct disk_locn *, void *),
|
|
void *baton);
|
|
|
|
int lvmcache_foreach_ba(struct lvmcache_info *info,
|
|
int (*fun)(struct disk_locn *, void *),
|
|
void *baton);
|
|
|
|
int lvmcache_foreach_pv(struct lvmcache_vginfo *vg,
|
|
int (*fun)(struct lvmcache_info *, void *), void * baton);
|
|
|
|
uint64_t lvmcache_device_size(struct lvmcache_info *info);
|
|
void lvmcache_set_device_size(struct lvmcache_info *info, uint64_t size);
|
|
struct device *lvmcache_device(struct lvmcache_info *info);
|
|
void lvmcache_make_valid(struct lvmcache_info *info);
|
|
int lvmcache_is_orphan(struct lvmcache_info *info);
|
|
int lvmcache_uncertain_ownership(struct lvmcache_info *info);
|
|
unsigned lvmcache_mda_count(struct lvmcache_info *info);
|
|
int lvmcache_vgid_is_cached(const char *vgid);
|
|
uint64_t lvmcache_smallest_mda_size(struct lvmcache_info *info);
|
|
|
|
#endif
|