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

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Hi Jens,

On Wed, Jul 15, 2020 at 5:08 PM Jens Axboe <axboe@xxxxxxxxx> wrote:

> On 7/15/20 3:24 AM, Geert Uytterhoeven wrote:
> > On Wed, Jul 15, 2020 at 4:26 AM Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> 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?

$ git grep "\<HZ_[0-9]" -- "*Kconf*"
arch/alpha/Kconfig:     default HZ_128 if ALPHA_QEMU
arch/alpha/Kconfig:     default HZ_1200 if ALPHA_RAWHIDE
arch/alpha/Kconfig:     default HZ_1024
arch/alpha/Kconfig:     config HZ_32
arch/alpha/Kconfig:     config HZ_64
arch/alpha/Kconfig:     config HZ_128
arch/alpha/Kconfig:     config HZ_256
arch/alpha/Kconfig:     config HZ_1024
arch/alpha/Kconfig:     config HZ_1200
arch/alpha/Kconfig:     default 32 if HZ_32
arch/alpha/Kconfig:     default 64 if HZ_64
arch/alpha/Kconfig:     default 128 if HZ_128
arch/alpha/Kconfig:     default 256 if HZ_256
arch/alpha/Kconfig:     default 1200 if HZ_1200
arch/arm/Kconfig:config HZ_100
arch/arm/Kconfig:config HZ_200
arch/arm/Kconfig:config HZ_250
arch/arm/Kconfig:config HZ_300
arch/arm/Kconfig:config HZ_500
arch/arm/Kconfig:config HZ_1000
arch/arm/Kconfig:       default 100 if HZ_100
arch/arm/Kconfig:       default 200 if HZ_200
arch/arm/Kconfig:       default 250 if HZ_250
arch/arm/Kconfig:       default 300 if HZ_300
arch/arm/Kconfig:       default 500 if HZ_500
arch/mips/Kconfig:      default HZ_250
arch/mips/Kconfig:      config HZ_24
arch/mips/Kconfig:      config HZ_48
arch/mips/Kconfig:      config HZ_100
arch/mips/Kconfig:      config HZ_128
arch/mips/Kconfig:      config HZ_250
arch/mips/Kconfig:      config HZ_256
arch/mips/Kconfig:      config HZ_1000
arch/mips/Kconfig:      config HZ_1024
arch/mips/Kconfig:      default 24 if HZ_24
arch/mips/Kconfig:      default 48 if HZ_48
arch/mips/Kconfig:      default 100 if HZ_100
arch/mips/Kconfig:      default 128 if HZ_128
arch/mips/Kconfig:      default 250 if HZ_250
arch/mips/Kconfig:      default 256 if HZ_256
arch/mips/Kconfig:      default 1000 if HZ_1000
arch/mips/Kconfig:      default 1024 if HZ_1024
kernel/Kconfig.hz:      default HZ_250
kernel/Kconfig.hz:      config HZ_100
kernel/Kconfig.hz:      config HZ_250
kernel/Kconfig.hz:      config HZ_300
kernel/Kconfig.hz:      config HZ_1000
kernel/Kconfig.hz:      default 100 if HZ_100
kernel/Kconfig.hz:      default 250 if HZ_250
kernel/Kconfig.hz:      default 300 if HZ_300
kernel/Kconfig.hz:      default 1000 if HZ_1000

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds



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