On Fri, 08 Nov 2019 22:32:39 +0100, Arnd Bergmann said:
> Similar to commit 46c9a946d766 ("shmem: use monotonic time for i_generation")
> we should not use the deprecated get_seconds() interface for i_generation.
>
> prandom_u32() is the replacement used in other file systems.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

exfat does some weird stuff with i_generation. but (a) it doesn't require
monotonic increasing values and (b) this change is orthogonal to the weirdness
and won't break anything.

For the exfat part:

Acked-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>