[lvm-devel] [PATCH] Fix vgchange for sparse devices
Mikulas Patocka
mpatocka at redhat.com
Tue Oct 25 13:03:40 UTC 2011
Fix vgchange for sparse devices
If we create a sparse snapshot volume with "lvcreate --virtualsize", the volume
is not activated or deactivated with vgchange.
This patch fixes it so that vgchange activates and deactivates such volumes.
Signed-off-by: Mikulas Patocka <mpatocka at redhat.com>
---
tools/vgchange.c | 4 ++++
1 file changed, 4 insertions(+)
Index: LVM2.2.02.85/tools/vgchange.c
===================================================================
--- LVM2.2.02.85.orig/tools/vgchange.c 2011-05-19 17:41:17.000000000 +0200
+++ LVM2.2.02.85/tools/vgchange.c 2011-05-19 18:32:00.000000000 +0200
@@ -96,6 +96,10 @@ static int _activate_lvs_in_vg(struct cm
if (!lv_is_visible(lv))
continue;
+ /* If LV is sparse, activate origin instead */
+ if (lv_is_cow(lv) && lv_is_virtual_origin(origin_from_cow(lv)))
+ lv = origin_from_cow(lv);
+
/* Only request activation of snapshot origin devices */
if ((lv->status & SNAPSHOT) || lv_is_cow(lv))
continue;
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