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kpartx: partitions of mapped devices cannot be created in redhat OS

Message ID 1472468958-11300-1-git-send-email-tang.junhui@zte.com.cn (mailing list archive)
State Not Applicable, archived
Delegated to: christophe varoqui
Headers show

Commit Message

tang.junhui@zte.com.cn Aug. 29, 2016, 11:09 a.m. UTC 
From: "tang.junhui" <tang.junhui@zte.com.cn>

Environment variables such as DM_TABLE_STATE are used in kpartx.rules which exported
by "dmsetup export" in previous udev rules in SuSE OS, however, there is no such command
"dmsetup export" in redhat OS, so these environment variables are not initialized and
 partitions cannot be created. This patch replace "dmsetup export" with "dmsetup info"
 to get the status of mapped device, which can work well both in SuSE and redhat OS.

Signed-off-by: tang.junhui <tang.junhui@zte.com.cn>
---
 kpartx/kpartx.rules | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)
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Patch

diff --git a/kpartx/kpartx.rules b/kpartx/kpartx.rules
index 1713f3c..8c8b836 100644
--- a/kpartx/kpartx.rules
+++ b/kpartx/kpartx.rules
@@ -7,8 +7,12 @@ 
 KERNEL!="dm-*", GOTO="kpartx_end"
 ACTION=="remove", GOTO="kpartx_end"
 
-ENV{DM_TABLE_STATE}!="LIVE", GOTO="kpartx_end"
-ENV{DM_DEPS}=="0", GOTO="kpartx_end"
+ENV{DMSETUP_SBIN_PATH}="/sbin"
+TEST!="$env{DMSETUP_SBIN_PATH}/dmsetup", ENV{DMSETUP_SBIN_PATH}="/usr/sbin"
+IMPORT{program}="$env{DMSETUP_SBIN_PATH}/dmsetup info -j %M -m %m -c --nameprefixes --noheadings --rows -o tables_loaded,device_count"
+
+ENV{DM_TABLES_LOADED}!="Live", GOTO="kpartx_end"
+ENV{DM_DEVICE_COUNT}=="0", GOTO="kpartx_end"
 
 ENV{DM_UUID}=="?*", IMPORT{program}=="kpartx_id %M %m $env{DM_UUID}"
 
@@ -37,7 +41,7 @@  ENV{ID_FS_USAGE}=="filesystem|other", ENV{ID_FS_LABEL_ENC}=="?*", \
 # Create dm tables for partitions
 ENV{DM_ACTION}=="PATH_FAILED|PATH_REINSTATED", GOTO="kpartx_end"
 ENV{DM_NR_VALID_PATHS}=="0", GOTO="kpartx_end"
-ENV{DM_STATE}!="SUSPENDED", ENV{DM_UUID}=="mpath-*", \
+ENV{DM_SUSPENDED}!="Suspended", ENV{DM_UUID}=="mpath-*", \
 	RUN+="/sbin/kpartx -u -p -part /dev/$name"
 
 LABEL="kpartx_end"