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Fix vgsplit to handle mirrors.

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Reorder fields in reporting field definitions.
This commit is contained in:
Alasdair Kergon 2007-01-29 23:01:18 +00:00
parent 3a7ec38f5a
commit ce4c33102f
3 changed files with 53 additions and 2 deletions
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2
WHATS_NEW
View File

@ -1,5 +1,7 @@
Version 2.02.21 -
===================================
Fix vgsplit to handle mirrors.
Reorder fields in reporting field definitions.
Fix vgs to treat args as VGs even when PV fields are displayed.
Fix md signature check to handle both endiannesses.

4
lib/report/report.c
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@ -868,11 +868,11 @@ static const struct dm_report_object_type _report_types[] = {
#define STR DM_REPORT_FIELD_TYPE_STRING
#define NUM DM_REPORT_FIELD_TYPE_NUMBER
#define FIELD(type, strct, sorttype, head, field, width, func, id, desc) {type, id, (off_t)((void *)&_dummy._ ## strct.field - (void *)&_dummy._ ## strct), head, width, sorttype, &_ ## func ## _disp, desc},
#define FIELD(type, strct, sorttype, head, field, width, func, id, desc) {type, sorttype, (off_t)((void *)&_dummy._ ## strct.field - (void *)&_dummy._ ## strct), width, id, head, &_ ## func ## _disp, desc},
static struct dm_report_field_type _fields[] = {
#include "columns.h"
{0, "", 0, "", 0, 0, NULL, NULL},
{0, 0, 0, 0, "", "", NULL, NULL},
};
#undef STR

49
tools/vgsplit.c
View File

@ -72,6 +72,9 @@ static int _move_lvs(struct volume_group *vg_from, struct volume_group *vg_to)
if ((lv->status & SNAPSHOT))
continue;
if ((lv->status & MIRRORED))
continue;
/* Ensure all the PVs used by this LV remain in the same */
/* VG as each other */
vg_with = NULL;
@ -161,6 +164,48 @@ static int _move_snapshots(struct volume_group *vg_from,
return 1;
}
static int _move_mirrors(struct volume_group *vg_from,
struct volume_group *vg_to)
{
struct list *lvh, *lvht;
struct logical_volume *lv;
struct lv_segment *seg;
int i, seg_in, log_in;
list_iterate_safe(lvh, lvht, &vg_from->lvs) {
lv = list_item(lvh, struct lv_list)->lv;
if (!(lv->status & MIRRORED))
continue;
seg = first_seg(lv);
seg_in = 0;
for (i = 0; i < seg->area_count; i++)
if (_lv_is_in_vg(vg_to, seg_lv(seg, i)))
seg_in++;
log_in = (!seg->log_lv || _lv_is_in_vg(vg_to, seg->log_lv));
if ((seg_in && seg_in < seg->area_count) ||
(seg_in && seg->log_lv && !log_in) ||
(!seg_in && seg->log_lv && log_in)) {
log_error("Mirror %s split", lv->name);
return 0;
}
if (seg_in == seg->area_count && log_in) {
list_del(lvh);
list_add(&vg_to->lvs, lvh);
vg_from->lv_count--;
vg_to->lv_count++;
}
}
return 1;
}
int vgsplit(struct cmd_context *cmd, int argc, char **argv)
{
char *vg_name_from, *vg_name_to;
@ -275,6 +320,10 @@ int vgsplit(struct cmd_context *cmd, int argc, char **argv)
if (!(_move_snapshots(vg_from, vg_to)))
goto error;
/* Move required mirrors across */
if (!(_move_mirrors(vg_from, vg_to)))
goto error;
/* FIXME Split mdas properly somehow too! */
/* Currently we cheat by sharing the format instance and relying on
* vg_write to ignore mdas outside the VG! Done this way, with text