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/${FSTYP}.
2. write a file in /sys/fs/${FSTYP}.
For common use, these functions can be used by other filesystems.
Signed-off-by: Zorro Lang <zlang@xxxxxxxxxx>
---
Hi,
V3 revert dname=$(basename $(readlink -f $dev)) line.
I think we don't need to check if /sys/fs/${FSTYP}/${dname}/$target
is exist in _set_fs_sys_fs_param(). Because if no this file,
*echo* will report error, and it will disturb golden file.
Thanks,
Zorro
common/rc | 40 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/common/rc b/common/rc
index 51092a0..759ec30 100644
--- a/common/rc
+++ b/common/rc
@@ -3556,6 +3556,46 @@ run_fsx()
fi
}
+_require_fs_sys_fs()
+{
+ local dev=$1
+ local target=$2
+ local tmp_mnt=`mktemp -d`
+
+ if [ ! -b "$dev" -o -z "$target" ];then
+ _fail "Usage: _require_fs_sys_fs <device> <sysfs_path>"
+ fi
+
+ local dname=$(basename $(readlink -f $dev))
+ _mount -t $FSTYP `_common_dev_mount_options` $dev $tmp_mnt
+ if [ $? -ne 0 ];then
+ rm -f $tmp_mnt
+ _fail "could not mount; mkfs first in your test?"
+ elif [ ! -e /sys/fs/${FSTYP}/${dname}/$target ];then
+ umount $tmp_mnt
+ rm -f $tmp_mnt
+ _notrun "/sys/fs/${FSTYP}/${dname}/$target: No such file or directory"
+ fi
+ umount $tmp_mnt
+ rm -rf $tmp_mnt
+}
+
+_set_fs_sys_fs_param()
+{
+ local dev=$1
+ shift
+ local target=$1
+ shift
+ local content="$*"
+
+ if [ ! -b "$dev" -o -z "$target" -o -z "$content" ];then
+ _fail "Usage: _set_sys_fs_param <mounted_device> <target> <content>"
+ fi
+
+ local dname=$(basename $(readlink -f $dev))
+ echo "$content" > /sys/fs/${FSTYP}/${dname}/$target
+}
+
init_rc
################################################################################
--
2.5.5
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