From: Harald Hoyer <harald@redhat.com>
Date: Mon, 13 Jul 2009 15:16:55 +0000 (+0200)
Subject: prevent LVM scan loops
X-Git-Tag: 0.5~45
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=21e033f8efb4415a04daebd3c280183ad1e242fa;p=platform%2Fupstream%2Fdracut.git

prevent LVM scan loops

lvm vgscan causes "change" events for all devices, to prevent a loop,
remember the devices, which trigger the scan of the devices.
---

diff --git a/modules.d/90dmraid/61-dmraid.rules b/modules.d/90dmraid/61-dmraid.rules
index 9fac499..e8e9d65 100644
--- a/modules.d/90dmraid/61-dmraid.rules
+++ b/modules.d/90dmraid/61-dmraid.rules
@@ -7,6 +7,8 @@ ACTION!="add|change", GOTO="dm_end"
 
 ENV{ID_FS_TYPE}=="linux_raid_member", GOTO="dm_end"
 
-ENV{ID_FS_TYPE}=="*_raid_member", RUN+="/bin/ln -fs /sbin/dmraid_scan /initqueue/dmraid_scan.sh"
+ENV{ID_FS_TYPE}=="*_raid_member", \
+    TEST!="/tmp/.dmraid_scan-%k", \
+    RUN+="/bin/sh -c '>/tmp/.dmraid_scan-%k; /bin/ln -fs /sbin/dmraid_scan /initqueue/dmraid_scan.sh'"
 
 LABEL="dm_end"
diff --git a/modules.d/90lvm/64-lvm-vol_id.rules b/modules.d/90lvm/64-lvm-vol_id.rules
index 2b0f44d..d3a07c1 100644
--- a/modules.d/90lvm/64-lvm-vol_id.rules
+++ b/modules.d/90lvm/64-lvm-vol_id.rules
@@ -9,7 +9,9 @@ ACTION!="add|change", GOTO="lvm_end"
 
 KERNEL=="dm-*", IMPORT{program}="vol_id --export $tempnode"
 
-ENV{ID_FS_TYPE}=="LVM2_member", RUN+="/bin/ln -fs /sbin/lvm_scan /initqueue/lvm_scan.sh"
+ENV{ID_FS_TYPE}=="LVM2_member", \
+    TEST!="/tmp/.lvm_scan-%k", \
+    RUN+="/bin/sh -c '>/tmp/.lvm_scan-%k; /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 1b1b6f4..3403020 100644
--- a/modules.d/90lvm/64-lvm.rules
+++ b/modules.d/90lvm/64-lvm.rules
@@ -9,7 +9,9 @@ ACTION!="add|change", GOTO="lvm_end"
 
 KERNEL=="dm-*", IMPORT{program}="/sbin/blkid -o udev -p $tempnode"
 
-ENV{ID_FS_TYPE}=="LVM2_member", RUN+="/bin/ln -fs /sbin/lvm_scan /initqueue/lvm_scan.sh"
+ENV{ID_FS_TYPE}=="LVM2_member", \
+    TEST!="/tmp/.lvm_scan-%k", \
+    RUN+="/bin/sh -c '>/tmp/.lvm_scan-%k; /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}"