/* $NetBSD: activate.h,v 1.1.1.2 2009/12/02 00:25:45 haad Exp $ */ /* * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved. * Copyright (C) 2004-2007 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_ACTIVATE_H #define LVM_ACTIVATE_H #include "metadata-exported.h" struct lvinfo { int exists; int suspended; unsigned int open_count; int major; int minor; int read_only; int live_table; int inactive_table; uint32_t read_ahead; }; /* target attribute flags */ #define MIRROR_LOG_CLUSTERED 0x00000001U void set_activation(int activation); int activation(void); int driver_version(char *version, size_t size); int library_version(char *version, size_t size); int lvm1_present(struct cmd_context *cmd); int module_present(struct cmd_context *cmd, const char *target_name); int target_present(struct cmd_context *cmd, const char *target_name, int use_modprobe); int target_version(const char *target_name, uint32_t *maj, uint32_t *min, uint32_t *patchlevel); int list_segment_modules(struct dm_pool *mem, const struct lv_segment *seg, struct dm_list *modules); int list_lv_modules(struct dm_pool *mem, const struct logical_volume *lv, struct dm_list *modules); void activation_release(void); void activation_exit(void); int lv_suspend(struct cmd_context *cmd, const char *lvid_s); int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s); int lv_resume(struct cmd_context *cmd, const char *lvid_s); int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s); int lv_activate(struct cmd_context *cmd, const char *lvid_s, int exclusive); int lv_activate_with_filter(struct cmd_context *cmd, const char *lvid_s, int exclusive); int lv_deactivate(struct cmd_context *cmd, const char *lvid_s); int lv_mknodes(struct cmd_context *cmd, const struct logical_volume *lv); /* * Returns 1 if info structure has been populated, else 0. */ int lv_info(struct cmd_context *cmd, const struct logical_volume *lv, struct lvinfo *info, int with_open_count, int with_read_ahead); int lv_info_by_lvid(struct cmd_context *cmd, const char *lvid_s, struct lvinfo *info, int with_open_count, int with_read_ahead); /* * Returns 1 if activate_lv has been set: 1 = activate; 0 = don't. */ int lv_activation_filter(struct cmd_context *cmd, const char *lvid_s, int *activate_lv); /* * Returns 1 if percent has been set, else 0. */ int lv_snapshot_percent(const struct logical_volume *lv, float *percent, percent_range_t *percent_range); int lv_mirror_percent(struct cmd_context *cmd, struct logical_volume *lv, int wait, float *percent, percent_range_t *percent_range, uint32_t *event_nr); /* * Return number of LVs in the VG that are active. */ int lvs_in_vg_activated(struct volume_group *vg); int lvs_in_vg_activated_by_uuid_only(struct volume_group *vg); int lvs_in_vg_opened(const struct volume_group *vg); int lv_is_active(struct logical_volume *lv); int monitor_dev_for_events(struct cmd_context *cmd, struct logical_volume *lv, int do_reg); /* * Returns 1 if PV has a dependency tree that uses anything in VG. */ int pv_uses_vg(struct physical_volume *pv, struct volume_group *vg); /* * Returns 1 if mapped device is not suspended. */ int device_is_usable(dev_t dev); #endif