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Code Releases Activity

o a very quick hack to get vg_number right

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This commit is contained in:
Joe Thornber 2001-10-11 14:10:18 +00:00
parent 383d1752fa
commit 6b6a344e09
5 changed files with 95 additions and 3 deletions
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1
lib/Makefile.in
View File

@ -18,6 +18,7 @@ SOURCES=\
format1/format1.c \
format1/import-export.c \
format1/layout.c \
format1/vg_number.c \
log/log.c \
mm/dbg_malloc.c \
mm/pool.c

7
lib/format1/disk-rep.h
View File

@ -220,4 +220,11 @@ void export_numbers(struct list_head *pvs, struct volume_group *vg);
void export_pv_act(struct list_head *pvs);
/* blech */
int get_free_vg_number(struct dev_filter *filter, const char *candidate_vg,
int *result);
int export_vg_number(struct list_head *pvs, const char *vg_name,
struct dev_filter *filter);
#endif

11
lib/format1/format1.c
View File

@ -133,7 +133,8 @@ static struct disk_list *_flatten_pv(struct pool *mem, struct volume_group *vg,
}
static int _flatten_vg(struct pool *mem, struct volume_group *vg,
struct list_head *pvs, const char *prefix)
struct list_head *pvs, const char *prefix,
struct dev_filter *filter)
{
struct list_head *tmp;
struct pv_list *pvl;
@ -153,6 +154,11 @@ static int _flatten_vg(struct pool *mem, struct volume_group *vg,
export_numbers(pvs, vg);
export_pv_act(pvs);
if (!export_vg_number(pvs, vg->name, filter)) {
stack;
return 0;
}
return 1;
}
@ -169,7 +175,8 @@ static int _vg_write(struct io_space *is, struct volume_group *vg)
INIT_LIST_HEAD(&pvs);
r = _flatten_vg(mem, vg, &pvs, is->prefix) && write_pvs(&pvs);
r = (_flatten_vg(mem, vg, &pvs, is->prefix, is->filter) &&
write_pvs(&pvs));
pool_destroy(mem);
return r;
}

22
lib/format1/import-export.c
View File

@ -151,7 +151,6 @@ int export_pv(struct pv_disk *pvd, struct physical_volume *pv)
strncpy(pvd->vg_name, pv->vg_name, sizeof(pvd->vg_name));
//pvd->pv_major = MAJOR(pv->dev);
//pvd->pv_number = ??;
if (pv->status & ACTIVE)
pvd->pv_status |= PV_ACTIVE;
@ -607,3 +606,24 @@ void export_pv_act(struct list_head *pvs)
dl->vg.pv_act = act;
}
}
int export_vg_number(struct list_head *pvs, const char *vg_name,
struct dev_filter *filter)
{
struct list_head *tmp;
struct disk_list *dl;
int vg_num;
if (!get_free_vg_number(filter, vg_name, &vg_num)) {
stack;
return 0;
}
list_for_each (tmp, pvs) {
dl = list_entry(tmp, struct disk_list, list);
dl->vg.vg_number = vg_num;
}
return 1;
}

57
lib/format1/vg_number.c Normal file
View File

@ -0,0 +1,57 @@
/*
* Copyright (C) 2001 Sistina Software (UK) Limited.
*
* This file is released under the GPL.
*/
#include "log.h"
#include "pool.h"
#include "disk-rep.h"
/*
* FIXME: Quick hack. We can use caching to
* prevent a total re-read, even so vg_number
* causes the tools to check *every* pv. Yuck.
* Put in seperate file so it wouldn't contaminate
* other code.
*/
int get_free_vg_number(struct dev_filter *filter, const char *candidate_vg,
int *result)
{
struct list_head all_pvs, *tmp;
struct disk_list *dl;
struct pool *mem = pool_create(10 * 1024);
int numbers[MAX_VG], i, r = 0;
if (!mem) {
stack;
return 0;
}
if (!read_pvs_in_vg(NULL, filter, mem, &all_pvs)) {
stack;
goto out;
}
memset(numbers, 0, sizeof(numbers));
list_for_each (tmp, &all_pvs) {
dl = list_entry(tmp, struct disk_list, list);
if (!strcmp(dl->pv.vg_name, candidate_vg))
continue;
numbers[dl->vg.vg_number] = 1;
}
for (i = 0; i < MAX_VG; i++) {
if (!numbers[i]) {
r = 1;
*result = i;
break;
}
}
out:
pool_destroy(mem);
return r;
}