Re: [PATCH v2 6/6] ext4: super: extend timestamps to 40 bits

From: Theodore Y. Ts'o
Date: Sun Jul 22 2018 - 14:55:17 EST


On Wed, Jul 11, 2018 at 11:14:14AM +0200, Arnd Bergmann wrote:
> The inode timestamps use 34 bits in ext4, but the various timestamps in
> the superblock are limited to 32 bits. If every user accesses these as
> 'unsigned', then this is good until year 2106, but it seems better to
> extend this a bit further in the process of removing the deprecated
> get_seconds() function.
>
> This adds another byte for each timestamp in the superblock, making
> them long enough to store timestamps beyond what is in the inodes,
> which seems good enough here (in ocfs2, they are already 64-bit wide,
> which is appropriate for a new layout).
>
> I did not modify e2fsprogs, which obviously needs the same change to
> actually interpret future timestamps correctly.
>
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Thanks, applied.

- Ted