dracut/0045-Do-not-call-lvm-for-non-LVM-device-mapper-devices.patch
Harald Hoyer b94732d29a dracut-040-78.git20141219
- git snapshot
2014-12-19 15:01:39 +01:00

36 lines
1.4 KiB
Diff

From 3244bf59816096377edee6f8937f16838dc1a709 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Thu, 11 Dec 2014 15:46:06 +0100
Subject: [PATCH] Do not call 'lvm' for non-LVM device-mapper devices
If a device-mapper device is not created by LVM it's pointless
to call any 'lvm' programs got extract details; they'll be
failing anyway. So check the UUID before calling 'lvm'.
This speeds up initrd creation and avoids I/O errors on
multipath devices.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Thomas Renninger <trenn@suse.de>
---
dracut-functions.sh | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/dracut-functions.sh b/dracut-functions.sh
index 17a71f0..edd8ea9 100755
--- a/dracut-functions.sh
+++ b/dracut-functions.sh
@@ -698,10 +698,12 @@ for_each_host_dev_and_slaves()
# but you cannot create the logical volume without the volume group.
# And the volume group might be bigger than the devices the LV needs.
check_vol_slaves() {
- local _lv _vg _pv
+ local _lv _vg _pv _dm
for i in /dev/mapper/*; do
[[ $i == /dev/mapper/control ]] && continue
_lv=$(get_maj_min $i)
+ _dm=/sys/dev/block/$_lv/dm
+ [[ -f $_dm/uuid && $(<$_dm/uuid) =~ LVM-* ]] || continue
if [[ $_lv = $2 ]]; then
_vg=$(lvm lvs --noheadings -o vg_name $i 2>/dev/null)
# strip space