lvm2/lib/metadata/pv_alloc.h

/*
 * Copyright (C) 2005 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_PV_ALLOC_H

int alloc_pv_segment_whole_pv(struct dm_pool *mem, struct physical_volume *pv);
int peg_dup(struct dm_pool *mem, struct dm_list *peg_new, struct dm_list *peg_old);
struct pv_segment *assign_peg_to_lvseg(struct physical_volume *pv, uint32_t pe,
				       uint32_t area_len,
				       struct lv_segment *seg,
				       uint32_t area_num);
int pv_split_segment(struct dm_pool *mem,
		     struct physical_volume *pv, uint32_t pe,
		     struct pv_segment **pvseg_allocated);
int discard_pv_segment(struct pv_segment *peg, uint32_t discard_area_reduction);
int release_pv_segment(struct pv_segment *peg, uint32_t area_reduction);
int check_pv_segments(struct volume_group *vg);
void merge_pv_segments(struct pv_segment *peg1, struct pv_segment *peg2);

#endif
initial pv_segment defns 2005-04-20 00:52:35 +04:00			`/*`
			`* Copyright (C) 2005 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`
Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1. 2007-08-21 00:55:30 +04:00			`* of the GNU Lesser General Public License v.2.1.`
initial pv_segment defns 2005-04-20 00:52:35 +04:00			`*`
Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1. 2007-08-21 00:55:30 +04:00			`* You should have received a copy of the GNU Lesser General Public License`
initial pv_segment defns 2005-04-20 00:52:35 +04:00			`* 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_PV_ALLOC_H`

Use hash, bitset, malloc, pool from libdevmapper. 2005-10-17 03:03:59 +04:00			`int alloc_pv_segment_whole_pv(struct dm_pool mem, struct physical_volume pv);`
Right, a simple build (without options) is working again. 2008-11-04 01:14:30 +03:00			`int peg_dup(struct dm_pool mem, struct dm_list peg_new, struct dm_list *peg_old);`
Reinstate full PV size when removing from VG. Support loopfiles for testing. Complete the pv_segment support. 2005-05-03 21:28:23 +04:00			`struct pv_segment assign_peg_to_lvseg(struct physical_volume pv, uint32_t pe,`
			`uint32_t area_len,`
			`struct lv_segment *seg,`
			`uint32_t area_num);`
Fix all segments memory is allocated from vg private mempool. Physical segments were still allocated from global command context mempool. This leads to very high memory usage when activating large VG (vgchange). (Memory usage was about 2G when >3000LVs). Fix it by properly using vg->vgmem private pool, so all the memory is released early. New memory pool parameter is needed here for pv_split_segment function. Also fix the same problem in some minor allocations (vg description, lv segment split). 2010-03-31 21:23:18 +04:00			`int pv_split_segment(struct dm_pool *mem,`
			`struct physical_volume *pv, uint32_t pe,`
Do not traverse PV segment list twice. In addition to previous patch, we really do not need to search for segment which was just allocated in split request. Make pv_split_segment function return newly allocated (split) segment also. (So after this patch, there is only one user of slow find_peg_by_pe). 2010-03-31 21:22:26 +04:00			`struct pv_segment **pvseg_allocated);`
discards: split discard from release_pv_segment Separate discard_pv_segment out of release_pv_segment 2012-06-27 23:07:04 +04:00			`int discard_pv_segment(struct pv_segment *peg, uint32_t discard_area_reduction);`
Basic support for mirrors. 2005-06-01 20:51:55 +04:00			`int release_pv_segment(struct pv_segment *peg, uint32_t area_reduction);`
Reinstate full PV size when removing from VG. Support loopfiles for testing. Complete the pv_segment support. 2005-05-03 21:28:23 +04:00			`int check_pv_segments(struct volume_group *vg);`
			`void merge_pv_segments(struct pv_segment peg1, struct pv_segment peg2);`
initial pv_segment defns 2005-04-20 00:52:35 +04:00
			`#endif`