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mirror of git://sourceware.org/git/lvm2.git synced 2025-01-31 05:47:43 +03:00
lvm2/lib/activate/dev_manager.h
Alasdair Kergon 2293567c8c Fix lvcreate corelog validation.
Add --config for overriding most config file settings from cmdline.
  Quote arguments when printing command line.
  Remove linefeed from 'initialising logging' message.
  Add 'Completed' debug message.
  Don't attempt library exit after reloading config files.
  Always compile with libdevmapper, even if device-mapper is disabled.
2006-05-16 16:48:31 +00:00

67 lines
2.2 KiB
C

/*
* Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004 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 General Public License v.2.
*
* You should have received a copy of the GNU 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_DEV_MANAGER_H
#define _LVM_DEV_MANAGER_H
struct logical_volume;
struct volume_group;
struct cmd_context;
struct dev_manager;
struct dm_info;
struct device;
/*
* Constructor and destructor.
*/
struct dev_manager *dev_manager_create(struct cmd_context *cmd,
const char *vg_name);
void dev_manager_destroy(struct dev_manager *dm);
void dev_manager_release(void);
void dev_manager_exit(void);
/*
* The device handler is responsible for creating all the layered
* dm devices, and ensuring that all constraints are maintained
* (eg, an origin is created before its snapshot, but is not
* unsuspended until the snapshot is also created.)
*/
int dev_manager_info(struct dm_pool *mem, const char *name,
const struct logical_volume *lv,
int mknodes, int with_open_count, struct dm_info *info);
int dev_manager_snapshot_percent(struct dev_manager *dm,
const struct logical_volume *lv,
float *percent);
int dev_manager_mirror_percent(struct dev_manager *dm,
struct logical_volume *lv, int wait,
float *percent, uint32_t *event_nr);
int dev_manager_suspend(struct dev_manager *dm, struct logical_volume *lv);
int dev_manager_activate(struct dev_manager *dm, struct logical_volume *lv);
int dev_manager_preload(struct dev_manager *dm, struct logical_volume *lv);
int dev_manager_deactivate(struct dev_manager *dm, struct logical_volume *lv);
int dev_manager_lv_mknodes(const struct logical_volume *lv);
int dev_manager_lv_rmnodes(const struct logical_volume *lv);
/*
* Put the desired changes into effect.
*/
int dev_manager_execute(struct dev_manager *dm);
int dev_manager_device_uses_vg(struct device *dev,
struct volume_group *vg);
#endif