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Workaround for 4.18.0-305.45.1 OpenShift kernel

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Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
This commit is contained in:
Robert Baldyga 2022-09-29 10:44:28 +02:00
parent 3df37198ca
commit 52279d257e
1 changed files with 57 additions and 33 deletions
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90
configure.d/1_blk_queue_exit_workaround_for_rhel.conf
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@ -6,14 +6,51 @@
. $(dirname $3)/conf_framework.sh
# RHEL8.5 kernel 4.18 subversion targeted for the workaround is 348.7.1.
# The workaround is needed starting this version and up.
QUEUE_PUT_WA_LINUX_MAJOR_SINCE=4
QUEUE_PUT_WA_LINUX_MINOR_SINCE=18
QUEUE_PUT_WA_LINUX_SUB_SINCE=0
QUEUE_PUT_WA_RHEL_MAJOR_SINCE=348
QUEUE_PUT_WA_RHEL_MINOR_SINCE=7
QUEUE_PUT_WA_RHEL_SUB_SINCE=1
# Check whether version A is the same as (or newer than) version B.
#
# Version consists of three elements: major, minor and sub.
# The last argument (GT_LVL) tells at which level it is acceptable
# for version A to be newer than B. It can be "major", "minor", "sub"
# or unspecified.
# - For GT_LVL="major" used, then all versions that are newer than B
# are accepted.
# - For GT=LVL="minor" only versions that are newer and have the same
# major number.
# - For GT_LVL="sub" only version that are newer and have the same major
# and minor number are accepted.
# - For GT_LVL unspecified version A needs to be exactly the same as
# version B.
compare_version () {
MAJOR_A=$1
MINOR_A=$2
SUB_A=$3
MAJOR_B=$4
MINOR_B=$5
SUB_B=$6
GT_LVL=$7
if [ "$MAJOR_A" -eq "$MAJOR_B" ]; then
if [ "$MINOR_A" -eq "$MINOR_B" ]; then
if [ "$SUB_A" -eq "$SUB_B" ]; then
return 0
elif [ -n "$GT_LVL" ] && [ "$SUB_A" -gt "$SUB_B" ]; then
return 0
fi
elif [ "$GT_LVL" = "major" -o "$GT_LVL" = "minor" ] &&
[ "$MINOR_A" -gt "$MINOR_B" ]; then
return 0
fi
elif [ "$GT_LVL" = "major" ] && [ "$MAJOR_A" -gt "$MAJOR_B" ]; then
return 0
fi
return 1
}
compare_kernel_version () {
compare_version $1 $2 $3 $LINUX_MAJOR $LINUX_MINOR $LINUX_SUB $4
}
compare_rhel_kernel_version () {
compare_version $1 $2 $3 $RHEL_MAJOR $RHEL_MINOR $RHEL_SUB $4
}
check () {
cur_name=$(basename $2)
@ -24,9 +61,7 @@ check () {
LINUX_MINOR=$((LINUX_VERSION_CODE >> 8 & 0xff))
LINUX_SUB=$((LINUX_VERSION_CODE & 0xff))
if [ -z $RHEL_RELEASE ]; then
echo $cur_name "2" >> $config_file_path; #not RHEL, no workaround needed
else
if [ -n $RHEL_RELEASE ]; then
#it's RHEL, check versions to see if the workaround is needed
IFS=. read -a arr <<< $RHEL_RELEASE
@ -34,32 +69,21 @@ check () {
RHEL_MINOR="${arr[1]:=0}"
RHEL_SUB="${arr[2]:=0}"
#check kernel and rhel version (major/minor/sub)
if [ "$LINUX_MAJOR" -eq "$QUEUE_PUT_WA_LINUX_MAJOR_SINCE" ] &&
[ "$LINUX_MINOR" -eq "$QUEUE_PUT_WA_LINUX_MINOR_SINCE" ] &&
[ "$LINUX_SUB" -eq "$QUEUE_PUT_WA_LINUX_SUB_SINCE" ];
then
if [ "$RHEL_MAJOR" -gt "$QUEUE_PUT_WA_RHEL_MAJOR_SINCE" ]; then
#check linux kernel version
if compare_kernel_version 4 18 0; then
#check rhel kernel version
if compare_rhel_kernel_version 305 45 1 "minor"; then
echo $cur_name "1" >> $config_file_path; #workaround needed
elif [ "$RHEL_MAJOR" -lt "$QUEUE_PUT_WA_RHEL_MAJOR_SINCE" ]; then
echo $cur_name "2" >> $config_file_path; #no workaround needed
else
if [ "$RHEL_MINOR" -gt "$QUEUE_PUT_WA_RHEL_MINOR_SINCE" ]; then
echo $cur_name "1" >> $config_file_path; #workaround needed
elif [ "$RHEL_MINOR" -lt "$QUEUE_PUT_WA_RHEL_MINOR_SINCE" ]; then
echo $cur_name "2" >> $config_file_path; #no workaround needed
else
if [ "$RHEL_SUB" -ge "$QUEUE_PUT_WA_RHEL_SUB_SINCE" ]; then
echo $cur_name "1" >> $config_file_path; #workaround needed
else
echo $cur_name "2" >> $config_file_path; #no workaround needed
fi
fi
return
fi
if compare_rhel_kernel_version 348 7 1 "major"; then
echo $cur_name "1" >> $config_file_path; #workaround needed
return
fi
else
echo $cur_name "2" >> $config_file_path; #no workaround needed
fi
fi
echo $cur_name "2" >> $config_file_path; #no workaround needed
}
apply() {