shaba/lvm2
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Code Releases Activity

o finished writing extent reading code

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This commit is contained in:
Joe Thornber 2001-10-05 13:59:44 +00:00
parent f09fdc28fa
commit 064c620fb0
2 changed files with 64 additions and 9 deletions
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58
lib/format1/format1.c
View File

@ -92,7 +92,7 @@ static int _import_pvs(struct pool *mem, struct volume_group *vg,
return 1; return 1;
} }
static struct logical_volume *_find_lv(struct volume_group *vg, static struct logical_volume *_find_lv(struct volume_group *vg,
const char *name) const char *name)
{ {
struct list_head *tmp; struct list_head *tmp;
@ -142,6 +142,7 @@ static int _import_lvs(struct pool *mem, struct volume_group *vg,
{ {
struct list_head *tmp, tmp2; struct list_head *tmp, tmp2;
struct disk_list *dl; struct disk_list *dl;
struct lv_list *ll;
struct lv_disk *lvd; struct lv_disk *lvd;
struct logical_volume *lv; struct logical_volume *lv;
int i; int i;
@ -149,7 +150,9 @@ static int _import_lvs(struct pool *mem, struct volume_group *vg,
list_for_each(tmp, pvs) { list_for_each(tmp, pvs) {
dl = list_entry(tmp, struct disk_list, list); dl = list_entry(tmp, struct disk_list, list);
list_for_each(tmp2, &dl->lvs) { list_for_each(tmp2, &dl->lvs) {
lvd = list_entry(tmp2, struct lv_disk, list); ll = list_entry(tmp2, struct lv_list, list);
lvd = &ll->lv;
if (!_find_lv(vg, lvd->lvname) && !_add_lv(vg, lvd)) { if (!_find_lv(vg, lvd->lvname) && !_add_lv(vg, lvd)) {
stack; stack;
return 0; return 0;
@ -160,29 +163,66 @@ static int _import_lvs(struct pool *mem, struct volume_group *vg,
return 1; return 1;
} }
static int _fill_lv_array(struct logical_volume *lvs,
struct volume_group *vg, struct disk_list *dl)
{
struct list_head *tmp;
struct pv_disk *pvd = &dl->pv;
struct logical_volume *lv;
int i = 0;
list_for_each(tmp, &dl->lvs) {
struct lv_list *ll = list_entry(tmp, struct lv_disk, list);
if (!(lv = _find_lv(vg, ll->lv.name))) {
stack;
return 0;
}
lvs[i] = lv;
i++;
}
return 1;
}
static int _import_extents(struct pool *mem, struct volume_group *vg, static int _import_extents(struct pool *mem, struct volume_group *vg,
struct list_head *pvs) struct list_head *pvs)
{ {
struct list_head *tmp; struct list_head *tmp;
struct disk_list *dl; struct disk_list *dl;
struct logical_volume *lv; struct logical_volume *lv, lvs[MAX_LV];
struct physical_volume *pv; struct physical_volume *pv;
struct pe_disk *e; struct pe_disk *e;
int i, le; int i, le;
uint32_t lv_num, le_num;
list_for_each(tmp, pvs) { list_for_each(tmp, pvs) {
dl = list_entry(tmp, struct disk_list, list); dl = list_entry(tmp, struct disk_list, list);
pv = _find_pv(vg, dl->pv.pv_name); pv = _find_pv(vg, dl->pv.pv_name);
e = dl->extents; e = dl->extents;
for (i = 0; i < dl->pv.pe_total; i++) { /* build an array of lv's for this pv */
if (e[i].lv_num) { if (!_fill_lv_array(lvs, vg, dl)) {
if (!(lv = _find_lv_num(vg, e[i].lv_num))) { stack;
stack; return 0;
return 0; }
}
for (i = 0; i < dl->pv.pe_total; i++) {
lv_num = e[i].lv_num;
le_num = e[i].le_num;
if (lv_num == UNMAPPED_EXTENT)
lv->map[le].pv = NULL;
else if(lv_num >= dl->pv.lv_cur) {
log_err("invalid lv in extent map\n");
return 0;
else {
lv = lvs[e[i].lv_num];
le = e[i].le_num; le = e[i].le_num;
lv->map[le].pv = pv; lv->map[le].pv = pv;
lv->map[le].pe = i; lv->map[le].pe = i;
} }

15
lib/format1/format1.h Normal file
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@ -0,0 +1,15 @@
/*
* Copyright (C) 2001 Sistina Software (UK) Limited.
*
* This file is released under the GPL.
*
*/
#ifndef LVM_FORMAT1_H
#define LVM_FORMAT1_H
#include "metadata.h"
struct io_space *create_lvm_v1_format(struct dev_filter *filter);
#endif