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dracut-functions.sh:check_block_and_slaves*() skip LVM internal devs 

Not every device in /dev/mapper should be examined.
If it is an LVM device, touch only devices which have /dev/VG/LV symlink.
master
Marian Csontos 2013-10-18 14:40:40 +02:00 committed by Harald Hoyer
parent 56903458d7
commit 96c6f6f3d1
1 changed files with 14 additions and 2 deletions
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16
dracut-functions.sh
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@ -579,7 +579,7 @@ host_fs_all()
check_block_and_slaves() {
local _x
[[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry.
"$1" $2 && return
if ! lvm_internal_dev $2; then "$1" $2 && return; fi
check_vol_slaves "$@" && return 0
if [[ -f /sys/dev/block/$2/../dev ]]; then
check_block_and_slaves $1 $(<"/sys/dev/block/$2/../dev") && return 0
@ -595,7 +595,7 @@ check_block_and_slaves() {
check_block_and_slaves_all() {
local _x _ret=1
[[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry.
if "$1" $2; then
if ! lvm_internal_dev $2 && "$1" $2; then
_ret=0
fi
check_vol_slaves "$@" && return 0
@ -1672,3 +1672,15 @@ get_ucode_file ()
printf "%02x-%02x-%02x" ${family} ${model} ${stepping}
fi
}

# Not every device in /dev/mapper should be examined.
# If it is an LVM device, touch only devices which have /dev/VG/LV symlink.
lvm_internal_dev() {
local dev_dm_dir=/sys/dev/block/$1/dm
[[ ! -f $dev_dm_dir/uuid || $(<$dev_dm_dir/uuid) != LVM-* ]] && return 1 # Not an LVM device
local DM_VG_NAME DM_LV_NAME DM_LV_LAYER
eval $(dmsetup splitname --nameprefixes --noheadings --rows "$(<$dev_dm_dir/name)" 2>/dev/null)
[[ ${DM_VG_NAME} ]] && [[ ${DM_LV_NAME} ]] || return 0 # Better skip this!
[[ ${DM_LV_LAYER} ]] || [[ ! -L /dev/${DM_VG_NAME}/${DM_LV_NAME} ]]
}