On Thursday, November 24, 2016 6:40:55 PM CET Eryu Guan wrote:
> On Wed, Nov 23, 2016 at 04:52:02PM -0800, Deepa Dinamani wrote:
> > +_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.
Arnd
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