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Function sb() is an internal only function. Signed-off-by: Anand Jain --- common/btrfs | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/common/btrfs b/common/btrfs index e1b29c613767..5cba9b16b4de 100644 --- a/common/btrfs +++ b/common/btrfs @@ -792,3 +792,37 @@ _has_btrfs_sysfs_feature_attr() test -e /sys/fs/btrfs/features/$feature_attr } + +# Dump key members of the on-disk super-block from the given disk; helps debug +sb() +{ + local dev1=$1 + local parameters="device|devid|^metadata_uuid|^fsid|^incom|^generation|\ + ^flags| \|$| \)$|compat_flags|compat_ro_flags|dev_item.uuid" + + $BTRFS_UTIL_PROG inspect-internal dump-super $dev1 | egrep "$parameters" +} + +check_fsid() +{ + local dev1=$1 + local fsid + + # on disk fsid + fsid=$(sb $dev1 | grep ^fsid | awk -d" " '{print $2}') + echo -e "On disk fsid:\t\t$fsid" | sed -e "s/$fsid/FSID/g" + + echo -e -n "Metadata uuid:\t\t" + cat /sys/fs/btrfs/$fsid/metadata_uuid | sed -e "s/$fsid/FSID/g" + + # This returns the temp_fsid if set + tempfsid=$(_btrfs_get_fsid $dev1) + if [[ $tempfsid == $fsid ]]; then + echo -e "Temp fsid:\t\tFSID" + else + echo -e "Temp fsid:\t\tTEMPFSID" + fi + + echo -e -n "Tempfsid status:\t" + cat /sys/fs/btrfs/$tempfsid/temp_fsid +}