mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-22 17:35:59 +03:00
113 lines
4.1 KiB
C
113 lines
4.1 KiB
C
/*
|
|
* Copyright (C) 2013 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef _LVM_DEV_TYPE_H
|
|
#define _LVM_DEV_TYPE_H
|
|
|
|
#include "lib/device/device.h"
|
|
#include "lib/display/display.h"
|
|
#include "lib/label/label.h"
|
|
#include "lib/device/filesystem.h"
|
|
|
|
#define NUMBER_OF_MAJORS 4096
|
|
|
|
#ifdef __linux__
|
|
# include "libdm/misc/kdev_t.h"
|
|
#else
|
|
# define MAJOR(x) major((x))
|
|
# define MINOR(x) minor((x))
|
|
# define MKDEV(x,y) makedev((x),(y))
|
|
#endif
|
|
|
|
#define PARTITION_SCSI_DEVICE (1 << 0)
|
|
|
|
struct dev_type_def {
|
|
int max_partitions; /* 0 means LVM won't use this major number. */
|
|
int flags;
|
|
};
|
|
|
|
struct dev_types {
|
|
unsigned md_major;
|
|
unsigned blkext_major;
|
|
unsigned drbd_major;
|
|
unsigned device_mapper_major;
|
|
unsigned emcpower_major;
|
|
unsigned vxdmp_major;
|
|
unsigned power2_major;
|
|
unsigned dasd_major;
|
|
unsigned loop_major;
|
|
struct dev_type_def dev_type_array[NUMBER_OF_MAJORS];
|
|
};
|
|
|
|
struct dev_types *create_dev_types(const char *proc_dir, const struct dm_config_node *cn);
|
|
|
|
/* Subsystems */
|
|
int dev_subsystem_part_major(struct dev_types *dt, struct device *dev);
|
|
const char *dev_subsystem_name(struct dev_types *dt, struct device *dev);
|
|
int major_is_scsi_device(struct dev_types *dt, int major);
|
|
|
|
/* Signature/superblock recognition with position returned where found. */
|
|
int dev_is_md_component(struct cmd_context *cmd, struct device *dev, uint64_t *sb, int full);
|
|
int dev_is_mpath_component(struct cmd_context *cmd, struct device *dev, dev_t *mpath_devno);
|
|
int dev_is_swap(struct cmd_context *cmd, struct device *dev, uint64_t *signature, int full);
|
|
int dev_is_luks(struct cmd_context *cmd, struct device *dev, uint64_t *signature, int full);
|
|
int dasd_is_cdl_formatted(struct device *dev);
|
|
|
|
const char *dev_mpath_component_wwid(struct cmd_context *cmd, struct device *dev);
|
|
|
|
int dev_is_lvm1(struct device *dev, char *buf, int buflen);
|
|
int dev_is_pool(struct device *dev, char *buf, int buflen);
|
|
|
|
/* Signature wiping. */
|
|
#define TYPE_LVM1_MEMBER 0x001
|
|
#define TYPE_LVM2_MEMBER 0x002
|
|
#define TYPE_DM_SNAPSHOT_COW 0x004
|
|
int wipe_known_signatures(struct cmd_context *cmd, struct device *dev, const char *name,
|
|
uint32_t types_to_exclude, uint32_t types_no_prompt,
|
|
int yes, force_t force, int *wiped);
|
|
|
|
/* Type-specific device properties */
|
|
unsigned long dev_md_stripe_width(struct dev_types *dt, struct device *dev);
|
|
int dev_is_md_with_end_superblock(struct dev_types *dt, struct device *dev);
|
|
|
|
/* Partitioning */
|
|
int major_max_partitions(struct dev_types *dt, int major);
|
|
int dev_is_partitioned(struct cmd_context *cmd, struct device *dev);
|
|
int dev_get_primary_dev(struct dev_types *dt, struct device *dev, dev_t *result);
|
|
int dev_get_partition_number(struct device *dev, int *num);
|
|
|
|
/* Various device properties */
|
|
unsigned long dev_alignment_offset(struct dev_types *dt, struct device *dev);
|
|
unsigned long dev_minimum_io_size(struct dev_types *dt, struct device *dev);
|
|
unsigned long dev_optimal_io_size(struct dev_types *dt, struct device *dev);
|
|
unsigned long dev_discard_max_bytes(struct dev_types *dt, struct device *dev);
|
|
unsigned long dev_discard_granularity(struct dev_types *dt, struct device *dev);
|
|
|
|
int dev_is_rotational(struct dev_types *dt, struct device *dev);
|
|
|
|
int dev_is_pmem(struct dev_types *dt, struct device *dev);
|
|
|
|
int dev_is_nvme(struct dev_types *dt, struct device *dev);
|
|
|
|
int dev_is_lv(struct device *dev);
|
|
|
|
#define FSTYPE_MAX 16
|
|
int fs_block_size_and_type(const char *pathname, uint32_t *fs_block_size_bytes, char *fstype, int *nofs);
|
|
int fs_get_blkid(const char *pathname, struct fs_info *fsi);
|
|
|
|
int dev_is_used_by_active_lv(struct cmd_context *cmd, struct device *dev, int *used_by_lv_count,
|
|
char **used_by_dm_name, char **used_by_vg_uuid, char **used_by_lv_uuid);
|
|
|
|
#endif
|