| /* |
| * Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved. |
| * Copyright (C) 2004-2012 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_MANAGER_H |
| #define _LVM_DEV_MANAGER_H |
| |
| #include "metadata-exported.h" |
| |
| struct logical_volume; |
| struct lv_activate_opts; |
| struct volume_group; |
| struct cmd_context; |
| struct dev_manager; |
| struct dm_info; |
| struct device; |
| struct lv_seg_status; |
| |
| int read_only_lv(const struct logical_volume *lv, const struct lv_activate_opts *laopts); |
| |
| /* |
| * Constructor and destructor. |
| */ |
| struct dev_manager *dev_manager_create(struct cmd_context *cmd, |
| const char *vg_name, |
| unsigned track_pvmove_deps); |
| 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 cmd_context *cmd, const struct logical_volume *lv, |
| const char *layer, |
| int with_open_count, int with_read_ahead, |
| struct dm_info *dminfo, uint32_t *read_ahead, |
| struct lv_seg_status *seg_status); |
| |
| int dev_manager_snapshot_percent(struct dev_manager *dm, |
| const struct logical_volume *lv, |
| dm_percent_t *percent); |
| int dev_manager_mirror_percent(struct dev_manager *dm, |
| const struct logical_volume *lv, int wait, |
| dm_percent_t *percent, uint32_t *event_nr); |
| int dev_manager_raid_status(struct dev_manager *dm, |
| const struct logical_volume *lv, |
| struct dm_status_raid **status); |
| int dev_manager_raid_message(struct dev_manager *dm, |
| const struct logical_volume *lv, |
| const char *msg); |
| int dev_manager_cache_status(struct dev_manager *dm, |
| const struct logical_volume *lv, |
| struct lv_status_cache **status); |
| int dev_manager_thin_pool_status(struct dev_manager *dm, |
| const struct logical_volume *lv, |
| struct dm_status_thin_pool **status, |
| int flush); |
| int dev_manager_thin_pool_percent(struct dev_manager *dm, |
| const struct logical_volume *lv, |
| int metadata, dm_percent_t *percent); |
| int dev_manager_thin_percent(struct dev_manager *dm, |
| const struct logical_volume *lv, |
| int mapped, dm_percent_t *percent); |
| int dev_manager_thin_device_id(struct dev_manager *dm, |
| const struct logical_volume *lv, |
| uint32_t *device_id); |
| int dev_manager_suspend(struct dev_manager *dm, const struct logical_volume *lv, |
| struct lv_activate_opts *laopts, int lockfs, int flush_required); |
| int dev_manager_activate(struct dev_manager *dm, const struct logical_volume *lv, |
| struct lv_activate_opts *laopts); |
| int dev_manager_preload(struct dev_manager *dm, const struct logical_volume *lv, |
| struct lv_activate_opts *laopts, int *flush_required); |
| int dev_manager_deactivate(struct dev_manager *dm, const struct logical_volume *lv); |
| int dev_manager_transient(struct dev_manager *dm, const struct logical_volume *lv) __attribute__((nonnull(1, 2))); |
| |
| int dev_manager_mknodes(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 |