XFS add more configurations in /sys/fs/xfs recently. For use them, this patch add some common functions for: 1. "require" a file/dir in /sys/fs. 2. write a file in /sys/fs. For common use, these functions can be used by other filesystems. Signed-off-by: Zorro Lang <zlang@xxxxxxxxxx> --- common/rc | 81 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) diff --git a/common/rc b/common/rc index 51092a0..9935f08 100644 --- a/common/rc +++ b/common/rc @@ -3556,6 +3556,87 @@ run_fsx() fi } +_require_sys_fs() +{ + local dev=$1 + local target=$2 + local dname="" + + if [ ! -b "$dev" -o -z "$target" ];then + echo "Usage: _require_sys_fs <device> <target_need_exist>" + exit 1 + fi + + dname=$(basename $(readlink -f $dev)) + _mkfs_dev $dev > /dev/null 2>&1 + _mount -t $FSTYP `_common_dev_mount_options` $dev $SCRATCH_MNT + if [ ! -e /sys/fs/${FSTYP}/${dname}/$target ];then + umount $SCRATCH_MNT + _notrun "/sys/fs/${FSTYP}/${dname}/$target: No such file or directory" + fi + umount $SCRATCH_MNT +} + +_require_scratch_sys_fs() +{ + local target=$1 + local dname="" + + if [ ! -b "$SCRATCH_DEV" -o -z "$target" ];then + echo "Usage: _require_scratch_sys_fs <target_need_exist>" + exit 1 + fi + + dname=$(basename $(readlink -f $SCRATCH_DEV)) + _scratch_mkfs > /dev/null 2>&1 + _scratch_mount + if [ ! -e /sys/fs/${FSTYP}/${dname}/$target ];then + _scratch_unmount + _notrun "/sys/fs/${FSTYP}/${dname}/$target: No such file or directory" + fi + _scratch_unmount +} + +_set_sys_fs_param() +{ + local dev=$1 + shift + local target=$1 + shift + local content="$*" + + if [ ! -b "$dev" -o -z "$target" -o -z "$content" ];then + echo "Usage: _set_sys_fs_param <mounted_device> <target> <content>" + exit 1 + fi + local dname=$(basename $(readlink -f $dev)) + echo "$content" > /sys/fs/${FSTYP}/${dname}/$target +} + +_enable_xfs_fail_at_unmount() +{ + local dev=$1 + + if [ ! -b "$dev" -o "$FSTYP" != "xfs" ];then + echo "Usage: _enable_xfs_fail_at_unmount <mounted_XFS_device>" + exit 1 + fi + + _set_sys_fs_param $dev error/fail_at_unmount 1 +} + +_disable_xfs_fail_at_unmount() +{ + local dev=$1 + + if [ ! -b "$dev" -o "$FSTYP" != "xfs" ];then + echo "Usage: _enable_xfs_fail_at_unmount <mounted_XFS_device>" + exit 1 + fi + + _set_sys_fs_param $dev error/fail_at_unmount 0 +} + init_rc ################################################################################ -- 2.5.5 -- To unsubscribe from this list: send the line "unsubscribe fstests" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html