>> > +_filesystem_timestamp_range()
>> > +{
>> > + device=${1:-$TEST_DEV}
>> > + case $FSTYP in
>> > + ext4) #dumpe2fs
>> > + if [ $(dumpe2fs -h $device 2>/dev/null | grep "Inode size:" |
>> > cut -d: -f2) -gt 128 ]; then
>> > + echo "-2147483648 15032385535"
>> > + else
>> > + echo "-2147483648 2147483647"
>> > + fi
>>
>> Do ext3 and ext2 follow the same config as ext4?
>
> Those two only support the second case with 128 byte inodes, but the same
> check should work on all three.
>
> I have an overview of the limits on https://kernelnewbies.org/y2038/vfs,
> though I'd probably check all of them again, as some of them turned out
> to be wrong. In particular, identifying whether the on-disk timestamps
> are meant to be signed or unsigned can be a matter of interpretation
> and there may be a specification that disagrees with the implementation.
Right now I've only added tests for a few filesystems.
The plan is to add more filesystems later after we agree on the test.
-Deepa
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