shaba/lvm2
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Lookup snapshot usage percent of origin when a snapshot is merging.

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This commit is contained in:
Mike Snitzer 2012-01-20 21:56:01 +00:00
parent 079473f10a
commit e756b80f56
2 changed files with 10 additions and 2 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.89 -
==================================
Lookup snapshot usage percent of origin when a snapshot is merging.
Update lvdisplay with backward compat. config opt. lvm1_compatible_display.
Do not report linear segtype for non-striped targets.
Keep info about creation host and time for each logical volume.

11
lib/activate/dev_manager.c
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@ -742,6 +742,7 @@ int dev_manager_snapshot_percent(struct dev_manager *dm,
const struct logical_volume *lv,
percent_t *percent)
{
const struct logical_volume *snap_lv;
char *name;
const char *dlid;
int fail_if_percent_unsupported = 0;
@ -761,13 +762,19 @@ int dev_manager_snapshot_percent(struct dev_manager *dm,
fail_if_percent_unsupported = 1;
}
if (lv_is_merging_cow(lv)) {
/* must check percent of origin for a merging snapshot */
snap_lv = origin_from_cow(lv);
} else
snap_lv = lv;
/*
* Build a name for the top layer.
*/
if (!(name = dm_build_dm_name(dm->mem, lv->vg->name, lv->name, NULL)))
if (!(name = dm_build_dm_name(dm->mem, snap_lv->vg->name, snap_lv->name, NULL)))
return_0;
if (!(dlid = build_dm_uuid(dm->mem, lv->lvid.s, NULL)))
if (!(dlid = build_dm_uuid(dm->mem, snap_lv->lvid.s, NULL)))
return_0;
/*