test-appliance: add support to use a mkfs config file for LTS kernels

Older LTS kernels don't necessarily support all of the file system
features of modern kernels.  So detect when we are testing an LTS
kernel, and if available, use an file system specific mkfs config file
(if available) to constrain the file system features needed for that
kernel version and file system type.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>

run-fstests/util/parse_cli

@@ -279,6 +279,7 @@ local-ssd
 local-ssd-nvme
 log
 machtype:
+mkfs_config:
 modules:
 monitor-timeout:
 nfssrv:
@@ -540,6 +541,9 @@ while (( $# >= 1 )); do
 	    KERNEL_ARCH="$1"
 	    SKIP_KERNEL_ARCH_PROBE="yes"
 	    ;;
+	--mkfs_config) shift
+	    MKFS_CONFIG="$1"
+	    ;;
 	--modules) shift
 	    supported_flavors kvm gce
 	    case "$1" in
@@ -1132,6 +1136,10 @@ if test -n "$SOAK_DURATION" ; then
     FSTESTOPT="$FSTESTOPT,soak,$SOAK_DURATION"
 fi
 
+if test -n "$MKFS_CONFIG" ; then
+    FSTESTOPT="$FSTESTOPT,mkfs_config,$MKFS_CONFIG"
+fi
+
 FSTESTOPT=${FSTESTOPT/#,/}
 
 case "$FSTESTCFG" in

test-appliance/files/root/fs/xfs/config

@@ -3,6 +3,9 @@
 #
 
 DEFAULT_MKFS_OPTIONS=""
+if test -n "$MKFS_CONFIG_FILE" ; then
+   DEFAULT_MKFS_OPTIONS="-c options=$MKFS_CONFIG_FILE"
+fi
 
 function check_filesystem()
 {
@@ -26,6 +29,21 @@ function check_filesystem()
     return "$ret"
 }
 
+function xfs_adjust_mkfs_opts()
+{
+    if test -z "$MKFS_CONFIG_FILE" ; then
+	return
+    fi
+    if test -z "$XFS_MKFS_OPTIONS" ; then
+	XFS_MKFS_OPTIONS="-c options=$MKFS_CONFIG_FILE"
+    else
+	XFS_MKFS_OPTIONS="$XFS_MKFS_OPTIONS -c options=$MKFS_CONFIG_FILE"
+    fi
+    export XFS_MKFS_OPTIONS
+}
+
+adjust_mkfs_options=xfs_adjust_mkfs_opts
+
 function format_filesystem()
 {
     local dev="$1"
@@ -85,4 +103,5 @@ function reset_vars()
 {
     unset XFS_MOUNT_OPTIONS
     unset XFS_MKFS_OPTIONS
+    unset adjust_mkfs_options
 }

test-appliance/files/root/fs/xfs/mkfs_cfg/lts_4.19.conf

@@ -0,0 +1,19 @@
+# V5 features that were the mkfs defaults when the upstream Linux 4.19 LTS
+# kernel was released at the end of 2018.
+
+[metadata]
+bigtime=0
+crc=1
+finobt=1
+inobtcount=0
+reflink=0
+rmapbt=0
+autofsck=0
+
+[inode]
+sparse=1
+nrext64=0
+exchange=0
+
+[naming]
+parent=0

test-appliance/files/root/fs/xfs/mkfs_cfg/lts_5.10.conf

@@ -0,0 +1,19 @@
+# V5 features that were the mkfs defaults when the upstream Linux 5.10 LTS
+# kernel was released at the end of 2020.
+
+[metadata]
+bigtime=0
+crc=1
+finobt=1
+inobtcount=0
+reflink=1
+rmapbt=0
+autofsck=0
+
+[inode]
+sparse=1
+nrext64=0
+exchange=0
+
+[naming]
+parent=0

test-appliance/files/root/fs/xfs/mkfs_cfg/lts_5.15.conf

@@ -0,0 +1,19 @@
+# V5 features that were the mkfs defaults when the upstream Linux 5.15 LTS
+# kernel was released at the end of 2021.
+
+[metadata]
+bigtime=1
+crc=1
+finobt=1
+inobtcount=1
+reflink=1
+rmapbt=0
+autofsck=0
+
+[inode]
+sparse=1
+nrext64=0
+exchange=0
+
+[naming]
+parent=0

test-appliance/files/root/fs/xfs/mkfs_cfg/lts_5.4.conf

@@ -0,0 +1,19 @@
+# V5 features that were the mkfs defaults when the upstream Linux 5.4 LTS
+# kernel was released at the end of 2019.
+
+[metadata]
+bigtime=0
+crc=1
+finobt=1
+inobtcount=0
+reflink=1
+rmapbt=0
+autofsck=0
+
+[inode]
+sparse=1
+nrext64=0
+exchange=0
+
+[naming]
+parent=0

test-appliance/files/root/fs/xfs/mkfs_cfg/lts_6.1.conf

@@ -0,0 +1,19 @@
+# V5 features that were the mkfs defaults when the upstream Linux 6.1 LTS
+# kernel was released at the end of 2022.
+
+[metadata]
+bigtime=1
+crc=1
+finobt=1
+inobtcount=1
+reflink=1
+rmapbt=0
+autofsck=0
+
+[inode]
+sparse=1
+nrext64=0
+exchange=0
+
+[naming]
+parent=0

test-appliance/files/root/fs/xfs/mkfs_cfg/lts_6.12.conf

@@ -0,0 +1,19 @@
+# V5 features that were the mkfs defaults when the upstream Linux 6.12 LTS
+# kernel was released at the end of 2024.
+
+[metadata]
+bigtime=1
+crc=1
+finobt=1
+inobtcount=1
+reflink=1
+rmapbt=1
+autofsck=0
+
+[inode]
+sparse=1
+nrext64=1
+exchange=0
+
+[naming]
+parent=0

test-appliance/files/root/fs/xfs/mkfs_cfg/lts_6.6.conf

@@ -0,0 +1,19 @@
+# V5 features that were the mkfs defaults when the upstream Linux 6.6 LTS
+# kernel was released at the end of 2023.
+
+[metadata]
+bigtime=1
+crc=1
+finobt=1
+inobtcount=1
+reflink=1
+rmapbt=1
+autofsck=0
+
+[inode]
+sparse=1
+nrext64=1
+exchange=0
+
+[naming]
+parent=0

test-appliance/files/root/runtests.sh

@@ -62,6 +62,9 @@ while [ "$1" != "" ]; do
     no_truncate_test_files)
 	NO_TRUNCATE=t
 	;;
+    mkfs_config) shift
+	MKFS_CONFIG="$1"
+	;;
     *)
 	echo " "
 	echo "Unrecognized option $1"
@@ -71,6 +74,9 @@ while [ "$1" != "" ]; do
 done
 
 gen_version_files
+if test -z "$MKFS_CONFIG" ; then
+    set_mkfs_config
+fi
 umount "$PRI_TST_DEV" >& /dev/null
 umount "$SM_TST_DEV" >& /dev/null
 if ! get_fs_config $FSTESTTYP ; then
@@ -294,6 +300,9 @@ do
 	echo TEST_LOGDEV: $TEST_LOGDEV >> "$RESULT_BASE/config"
 	echo SCRATCH_RTDEV: $SCRATCH_RTDEV >> "$RESULT_BASE/config"
 	echo TEST_RTDEV: $TEST_RTDEV >> "$RESULT_BASE/config"
+	if test -n "$MKFS_CONFIG_FILE" ; then
+	   echo MKFS_CONFIG: $MKFS_CONFIG >> "$RESULT_BASE/config"
+	fi
 	show_mkfs_opts >> "$RESULT_BASE/config"
 	show_mount_opts >> "$RESULT_BASE/config"
 	if test -n "$SCRATCH_DEV_POOL" ; then

test-appliance/files/root/runtests_utils

@@ -17,6 +17,13 @@ function get_fs_config()
     fi
     . "$FS_DIR/config"
     FS_CONFIGURED="$fs"
+    MKFS_CONFIG_FILE=
+    if test -n "$MKFS_CONFIG" ; then
+	MKFS_CONFIG_FILE="$FS_DIR/mkfs_cfg/$MKFS_CONFIG.conf"
+	if ! test -f "$MKFS_CONFIG_FILE" ; then
+	    MKFS_CONFIG_FILE=
+	fi
+    fi
     return 0
 }
 
@@ -101,6 +108,9 @@ function get_one_fs_config() {
 	echo "Unknown configuration $FS/$TC"
 	return 1
     fi
+    if test -n "$adjust_mkfs_options" ; then
+       $adjust_mkfs_options
+    fi
     if test -z "$TEST_DEV" ; then
 	if test -z "$SIZE" ; then
 	    echo "No TEST_DEV and no SIZE"
@@ -279,6 +289,47 @@ function gen_version_files ()
     test -n "$TC" && echo TEST_CFG=$TC >> $vi_sh
 }
 
+function set_mkfs_config
+{
+    . /run/version_info.sh
+    case "$LINUX_VERSION_MAJOR" in
+	4)
+	    case "$LINUX_VERSION_MINOR" in
+		19)
+		    MKFS_CONFIG=lts_4.19
+		    ;;
+	    esac
+	    ;;
+	5)
+	    case "$LINUX_VERSION_MINOR" in
+		4)
+		    MKFS_CONFIG=lts_5.4
+		    ;;
+		10)
+		    MKFS_CONFIG=lts_5.10
+		    ;;
+		14|15)
+		    # 5.14 is an honorary 5.15 for RHEL 9 and SLES 15 SP4+
+		    MKFS_CONFIG=lts_5.15
+		    ;;
+	    esac
+	    ;;
+	6)
+	    case "$LINUX_VERSION_MINOR" in
+		1)
+		    MKFS_CONFIG=lts_6.1
+		    ;;
+		6)
+		    MKFS_CONFIG=lts_6.6
+		    ;;
+		12)
+		    MKFS_CONFIG=lts_6.12
+		    ;;
+	    esac
+	    ;;
+    esac
+}
+
 function clear_pool_devs ()
 {
     if test -n "$POOL0_DEV" ; then