Re: linux-next: build failure after merge of the block tree

Jens Axboe
2020-07-15T15:08:31Z

On 7/15/20 3:24 AM, Geert Uytterhoeven wrote:
> On Wed, Jul 15, 2020 at 4:26 AM Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>> After merging the block tree, today's linux-next build (arm
>> multi_v7_defconfig) failed like this:
>>
>> block/blk-timeout.c: In function 'blk_round_jiffies':
>> block/blk-timeout.c:96:14: error: 'CONFIG_HZ_ROUGH_MASK' undeclared (first use in this function)
>> 96 | return (j + CONFIG_HZ_ROUGH_MASK) + 1;
>> | ^~~~~~~~~~~~~~~~~~~~
>>
>> Caused by commit
>>
>> 91ba0f529364 ("block: relax jiffies rounding for timeouts")
>>
>> CONFIG_HZ_ROUGH_MASK is not defined for this build even though
>> CONFIG_HZ_100 is set. The arm arch does not include kernel/Kconfig.hz.
>>
>> I have reverted that commit for today.
>
> (as I don't have the original patch in my email, I'm commenting here)
>
> +config HZ_ROUGH_MASK
> + int
> + default 127 if HZ_100
> + default 255 if HZ_250 || HZ_300
> + default 1023 if HZ_1000
>
> What about other HZ_* values?

Which other ones do we have?

--
Jens Axboe