On Tue, Jul 10, 2018 at 05:21:34PM +0200, Arnd Bergmann wrote:
> On 32-bit architectures, dividing a 64-bit number needs to use the
> do_div() function or something like it to avoid a link failure:
>
> block/blk-iolatency.o: In function `iolatency_prfill_limit':
> blk-iolatency.c:(.text+0x8cc): undefined reference to `__aeabi_uldivmod'
>
> Using div_u64() gives us the best output and avoids the need for an
> explicit cast.
>
> Fixes: d70675121546 ("block: introduce blk-iolatency io controller")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Oops sorry Arnd,
Reviewed-by: Josef Bacik <josef@xxxxxxxxxxxxxx>
