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lv: add lv_set_vg

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To keep vg->lv_names up-to-date also for merge & split,
add function lv_set_vg() the will update also radix tree
reference for a VG.
This commit is contained in:
Zdenek Kabelac 2024-10-24 19:43:10 +02:00
parent 73c7dac1a8
commit c27d6695c1
4 changed files with 21 additions and 2 deletions
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16
lib/metadata/lv.c
View File

@ -1601,6 +1601,22 @@ int lv_set_name(struct logical_volume *lv, const char *lv_name)
return 1; return 1;
} }
int lv_set_vg(struct logical_volume *lv, struct volume_group *vg)
{
const char *lv_name;
if (lv->vg != vg) {
lv_name = lv->name;
if (!lv_set_name(lv, NULL))
return_0; /* drop from existing VG radix_tree */
lv->vg = vg;
if (!lv_set_name(lv, lv_name))
return_0;
}
return 1;
}
static char *_time_dup(struct cmd_context *cmd, struct dm_pool *mem, static char *_time_dup(struct cmd_context *cmd, struct dm_pool *mem,
time_t ts, int iso_mode) time_t ts, int iso_mode)
{ {

1
lib/metadata/lv.h
View File

@ -154,6 +154,7 @@ char *lvseg_kernel_discards_dup(struct dm_pool *mem, const struct lv_segment *se
int lv_set_creation(struct logical_volume *lv, int lv_set_creation(struct logical_volume *lv,
const char *hostname, uint64_t timestamp); const char *hostname, uint64_t timestamp);
int lv_set_name(struct logical_volume *lv, const char *lv_name); int lv_set_name(struct logical_volume *lv, const char *lv_name);
int lv_set_vg(struct logical_volume *lv, struct volume_group *vg);
int lv_active_change(struct cmd_context *cmd, struct logical_volume *lv, int lv_active_change(struct cmd_context *cmd, struct logical_volume *lv,
enum activation_change activate); enum activation_change activate);

3
tools/vgmerge.c
View File

@ -156,7 +156,8 @@ static int _vgmerge_single(struct cmd_context *cmd, const char *vg_name_to,
} }
dm_list_iterate_items(lvl1, &vg_from->lvs) { dm_list_iterate_items(lvl1, &vg_from->lvs) {
lvl1->lv->vg = vg_to; if (!lv_set_vg(lvl1->lv, vg_to))
goto_bad;
lvl1->lv->lvid.id[0] = lvl1->lv->vg->id; lvl1->lv->lvid.id[0] = lvl1->lv->vg->id;
} }

3
tools/vgsplit.c
View File

@ -49,7 +49,8 @@ static int _lv_tree_move(struct dm_list *lvh,
*lvht = dm_list_next(lvh, lvh); *lvht = dm_list_next(lvh, lvh);
dm_list_move(&vg_to->lvs, lvh); dm_list_move(&vg_to->lvs, lvh);
lv->vg = vg_to; if (!lv_set_vg(lv, vg_to))
return_0;
lv->lvid.id[0] = lv->vg->id; lv->lvid.id[0] = lv->vg->id;
if (seg) if (seg)