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lvm2/lib/activate/dev_manager.h

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o Sync with cvs, dev_manager still needs to be wired into activate.c
2002-02-25 12:02:33 +00:00
/*
Update copyright notices.
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* Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
Add activation/read_only_volume_list to override LV permission in metadata.
2012-01-12 01:51:56 +00:00
* Copyright (C) 2004-2012 Red Hat, Inc. All rights reserved.
o Sync with cvs, dev_manager still needs to be wired into activate.c
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*
Update copyright notices.
2004-03-30 19:35:44 +00:00
* 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
Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1.
2007-08-20 20:55:30 +00:00
* of the GNU Lesser General Public License v.2.1.
Update copyright notices.
2004-03-30 19:35:44 +00:00
*
Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1.
2007-08-20 20:55:30 +00:00
* You should have received a copy of the GNU Lesser General Public License
Update copyright notices.
2004-03-30 19:35:44 +00:00
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
o Sync with cvs, dev_manager still needs to be wired into activate.c
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*/
#ifndef _LVM_DEV_MANAGER_H
#define _LVM_DEV_MANAGER_H
Introduce percent_range_t and centralise snapshot full/mirror in-sync checks.
2009-10-01 00:35:29 +00:00
#include "metadata-exported.h"
Begin to separate out segment types.
2004-05-04 21:25:57 +00:00
struct logical_volume;
Add lv_activate_opts structure To avoid modification of 'read-only' volume group structure add a new structure to pass local data around the code for LV activation. As origin_only is one such flag - replace this parameter with new struct lv_activate_opts. More parameters might eventually become part of lv_activate_opts.
2011-06-17 14:14:19 +00:00
struct lv_activate_opts;
Use dm_is_dm_major instead of local copy. Allow mapped devices to be used as PVs safely.
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struct volume_group;
Begin to separate out segment types.
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struct cmd_context;
o Sync with cvs, dev_manager still needs to be wired into activate.c
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struct dev_manager;
Tidy various pre-processing incl. making libdl optional.
2003-03-24 18:08:53 +00:00
struct dm_info;
Use dm_is_dm_major instead of local copy. Allow mapped devices to be used as PVs safely.
2005-10-25 19:08:21 +00:00
struct device;
o Sync with cvs, dev_manager still needs to be wired into activate.c
2002-02-25 12:02:33 +00:00
Add activation/read_only_volume_list to override LV permission in metadata.
2012-01-12 01:51:56 +00:00
int read_only_lv(struct logical_volume *lv, struct lv_activate_opts *laopts);
o Sync with cvs, dev_manager still needs to be wired into activate.c
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/*
* Constructor and destructor.
*/
Begin to separate out segment types.
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struct dev_manager *dev_manager_create(struct cmd_context *cmd,
Major pvmove fix to issue ioctls in the correct order when multiple LVs are affected by the move. (Currently it's possible for I/O to become trapped between suspended devices amongst other problems. The current fix was selected so as to minimise the testing surface. I hope eventually to replace it with a cleaner one that extends the deptree code. Some lvconvert scenarios still suffer from related problems.
2011-06-11 00:03:06 +00:00
const char *vg_name,
unsigned track_pvmove_deps);
o Sync with cvs, dev_manager still needs to be wired into activate.c
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void dev_manager_destroy(struct dev_manager *dm);
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
void dev_manager_release(void);
Another sync point - numerous fixes & clean ups.
2003-07-04 22:34:56 +00:00
void dev_manager_exit(void);
o Sync with cvs, dev_manager still needs to be wired into activate.c
2002-02-25 12:02:33 +00:00
/*
* 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.)
*/
Always query device by uuid only. lvm2 devices have always UUID set even if imported from lvm1 metadata. Patch removes name argument from dev_manager_info call and converts all activation related calls to use query by UUID. Also it simplifies mknode call (which is the only user on mknodes parameter).
2010-02-24 20:00:56 +00:00
int dev_manager_info(struct dm_pool *mem, const struct logical_volume *lv,
Allow internal suspend and resume of origin without its snapshots.
2010-08-17 16:25:32 +00:00
const char *layer,
Always query device by uuid only. lvm2 devices have always UUID set even if imported from lvm1 metadata. Patch removes name argument from dev_manager_info call and converts all activation related calls to use query by UUID. Also it simplifies mknode call (which is the only user on mknodes parameter).
2010-02-24 20:00:56 +00:00
int with_open_count, int with_read_ahead,
readahead activation code (but no dm support yet)
2007-11-12 20:51:54 +00:00
struct dm_info *info, uint32_t *read_ahead);
Rename; add some FIXMEs.
2002-05-22 14:03:45 +00:00
int dev_manager_snapshot_percent(struct dev_manager *dm,
more snapshot code tidying
2006-04-06 14:06:27 +00:00
const struct logical_volume *lv,
Refactor the percent (mirror sync, snapshot usage) handling code to use fixed-point values instead of a combination of a float value and an enum.
2010-11-30 11:53:31 +00:00
percent_t *percent);
pvmove support
2003-04-30 15:26:25 +00:00
int dev_manager_mirror_percent(struct dev_manager *dm,
Change dev_manager_mirror_percent()'s 'struct logical_volume *' to be 'const'. Be consistent with its use (and dev_manager_snapshot_percent()). Pass 'lv' from dev_manager_snapshot_percent() to _percent() to _percent_run(). _percent_run() always dereferenced 'lv' (when initializing segh) even though it may have been NULL (as was the case until now for dev_manager_snapshot_percent()). If a "snapshot-origin" LV (snapshot-merge whose merge was deferred becuase it was open) was passed to _percent_run() it would always return 100%. Update _percent_run() to NOT return PERCENT_100 et. al. if ->target_percent() wasn't ever called and supplied 'lv' is a merging origin. A default return of 100% does not work for snapshot-merge. Also tweak a related lvconvert log_error() to include "Aborting merge."
2010-01-15 22:58:25 +00:00
const struct logical_volume *lv, int wait,
Refactor the percent (mirror sync, snapshot usage) handling code to use fixed-point values instead of a combination of a float value and an enum.
2010-11-30 11:53:31 +00:00
percent_t *percent, uint32_t *event_nr);
Thin add lv_thin_pool_transaction_id Easy function to get transaction_id status value.
2012-01-25 08:48:42 +00:00
int dev_manager_thin_pool_status(struct dev_manager *dm,
const struct logical_volume *lv,
struct dm_status_thin_pool **status);
Thin add dev_manager_thin_pool_percent dev manager function to read percent info from thin pool.
2011-12-21 13:09:33 +00:00
int dev_manager_thin_pool_percent(struct dev_manager *dm,
const struct logical_volume *lv,
Thin updated support for thin pool percent Support to check also for metadata percent (By checking whether seg pointer is set)
2012-01-19 15:25:37 +00:00
int metadata, percent_t *percent);
Thin add function to read thin volume percent This value returns percentage of 'mapped' size compared with total LV size. (Without passed seg pointer it return highest mapped size - but it's not used yet.)
2012-01-19 15:27:54 +00:00
int dev_manager_thin_percent(struct dev_manager *dm,
const struct logical_volume *lv,
int mapped, percent_t *percent);
Fix missing lockfs on first snapshot creation.
2006-08-08 21:20:00 +00:00
int dev_manager_suspend(struct dev_manager *dm, struct logical_volume *lv,
Add lv_activate_opts structure To avoid modification of 'read-only' volume group structure add a new structure to pass local data around the code for LV activation. As origin_only is one such flag - replace this parameter with new struct lv_activate_opts. More parameters might eventually become part of lv_activate_opts.
2011-06-17 14:14:19 +00:00
struct lv_activate_opts *laopts, int lockfs, int flush_required);
int dev_manager_activate(struct dev_manager *dm, struct logical_volume *lv,
struct lv_activate_opts *laopts);
Use suspend with flush when device size was changed during table preload. This allows online mirror resize, also removes condition to preventing code to do this.
2009-05-20 09:52:37 +00:00
int dev_manager_preload(struct dev_manager *dm, struct logical_volume *lv,
Add lv_activate_opts structure To avoid modification of 'read-only' volume group structure add a new structure to pass local data around the code for LV activation. As origin_only is one such flag - replace this parameter with new struct lv_activate_opts. More parameters might eventually become part of lv_activate_opts.
2011-06-17 14:14:19 +00:00
struct lv_activate_opts *laopts, int *flush_required);
o Sync with cvs, dev_manager still needs to be wired into activate.c
2002-02-25 12:02:33 +00:00
int dev_manager_deactivate(struct dev_manager *dm, struct logical_volume *lv);
Remove check for lv is NULL 'lv' is deferenced in the begining of the function so any check later is not helpful. Parameters for dev_manager_transien() are marked as nonnull.
2010-11-30 22:28:06 +00:00
int dev_manager_transient(struct dev_manager *dm, struct logical_volume *lv) __attribute__((nonnull(1, 2)));
o Sync with cvs, dev_manager still needs to be wired into activate.c
2002-02-25 12:02:33 +00:00
Always query device by uuid only. lvm2 devices have always UUID set even if imported from lvm1 metadata. Patch removes name argument from dev_manager_info call and converts all activation related calls to use query by UUID. Also it simplifies mknode call (which is the only user on mknodes parameter).
2010-02-24 20:00:56 +00:00
int dev_manager_mknodes(const struct logical_volume *lv);
The LVM2 part of vgmknodes [still to do the non-devfs device-mapper bit].
2003-11-12 19:16:48 +00:00
o Sync with cvs, dev_manager still needs to be wired into activate.c
2002-02-25 12:02:33 +00:00
/*
* Put the desired changes into effect.
*/
int dev_manager_execute(struct dev_manager *dm);
Add mirror_library description to example.conf. More compile-time cleanup.
2006-05-11 17:58:58 +00:00
int dev_manager_device_uses_vg(struct device *dev,
Use dm_is_dm_major instead of local copy. Allow mapped devices to be used as PVs safely.
2005-10-25 19:08:21 +00:00
struct volume_group *vg);
o Sync with cvs, dev_manager still needs to be wired into activate.c
2002-02-25 12:02:33 +00:00
#endif
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