From e3b4125e8331986f1ab3d1d209adbbbf1c8198eb Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Mon, 13 Jul 2009 15:54:02 +0200
Subject: [PATCH] delay lvm scan, until udev has settled

---
 modules.d/90lvm/64-lvm-vol_id.rules | 2 +-
 modules.d/90lvm/64-lvm.rules        | 2 +-
 modules.d/90lvm/install             | 2 ++
 modules.d/90lvm/lvm_scan.sh         | 9 +++++++++
 4 files changed, 13 insertions(+), 2 deletions(-)
 create mode 100755 modules.d/90lvm/lvm_scan.sh

diff --git a/modules.d/90lvm/64-lvm-vol_id.rules b/modules.d/90lvm/64-lvm-vol_id.rules
index 4cebb46..2b0f44d 100644
--- a/modules.d/90lvm/64-lvm-vol_id.rules
+++ b/modules.d/90lvm/64-lvm-vol_id.rules
@@ -9,7 +9,7 @@ ACTION!="add|change", GOTO="lvm_end"
 
 KERNEL=="dm-*", IMPORT{program}="vol_id --export $tempnode"
 
-ENV{ID_FS_TYPE}=="LVM2_member", RUN+="/bin/sh -c '/sbin/lvm vgscan; /sbin/lvm vgchange -ay'"
+ENV{ID_FS_TYPE}=="LVM2_member", RUN+="/bin/ln -fs /sbin/lvm_scan /initqueue/lvm_scan.sh"
 
 OPTIONS="link_priority=-100"
 ENV{ID_FS_USAGE}=="filesystem|other|crypto", ENV{ID_FS_UUID_ENC}=="?*", SYMLINK+="disk/by-uuid/$env{ID_FS_UUID_ENC}"
diff --git a/modules.d/90lvm/64-lvm.rules b/modules.d/90lvm/64-lvm.rules
index c55887d..1b1b6f4 100644
--- a/modules.d/90lvm/64-lvm.rules
+++ b/modules.d/90lvm/64-lvm.rules
@@ -9,7 +9,7 @@ ACTION!="add|change", GOTO="lvm_end"
 
 KERNEL=="dm-*", IMPORT{program}="/sbin/blkid -o udev -p $tempnode"
 
-ENV{ID_FS_TYPE}=="LVM2_member", RUN+="/bin/sh -c '/sbin/lvm vgscan; /sbin/lvm vgchange -ay'"
+ENV{ID_FS_TYPE}=="LVM2_member", RUN+="/bin/ln -fs /sbin/lvm_scan /initqueue/lvm_scan.sh"
 
 OPTIONS="link_priority=-100"
 ENV{ID_FS_USAGE}=="filesystem|other|crypto", ENV{ID_FS_UUID_ENC}=="?*", SYMLINK+="disk/by-uuid/$env{ID_FS_UUID_ENC}"
diff --git a/modules.d/90lvm/install b/modules.d/90lvm/install
index 48f6ec7..cba321b 100755
--- a/modules.d/90lvm/install
+++ b/modules.d/90lvm/install
@@ -5,3 +5,5 @@ if [ -x /lib/udev/vol_id ]; then
 else
     inst_rules "$moddir/64-lvm.rules" 64-device-mapper.rules
 fi
+
+inst "$moddir/lvm_scan.sh" /sbin/lvm_scan
diff --git a/modules.d/90lvm/lvm_scan.sh b/modules.d/90lvm/lvm_scan.sh
new file mode 100755
index 0000000..cd843aa
--- /dev/null
+++ b/modules.d/90lvm/lvm_scan.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+if $UDEV_QUEUE_EMPTY >/dev/null 2>&1; then
+    [ -h "$job" ] && rm -f "$job"
+    # run lvm scan if udev has settled
+    lvm vgscan
+    lvm vgchange -ay
+fi
+
-- 
2.7.4