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aec6487e99
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Ingo Molnar aec6487e99 x86/Kconfig: Further simplify the NR_CPUS config 
Clean up various aspects of the x86 CONFIG_NR_CPUS configuration switches:

- Rename the three CONFIG_NR_CPUS related variables to create a common
  namespace for them:

    RANGE_BEGIN_CPUS => NR_CPUS_RANGE_BEGIN
    RANGE_END_CPUS   => NR_CPUS_RANGE_END
    DEF_CONFIG_CPUS  => NR_CPUS_DEFAULT

- Align them vertically, such as:

    config NR_CPUS_RANGE_END
            int
            depends on X86_64
            default 8192 if  SMP && ( MAXSMP ||  CPUMASK_OFFSTACK)
            default  512 if  SMP && (!MAXSMP && !CPUMASK_OFFSTACK)
            default    1 if !SMP

- Update help text, add more comments.

Test results:

 # i386 allnoconfig:
 CONFIG_NR_CPUS_RANGE_BEGIN=1
 CONFIG_NR_CPUS_RANGE_END=1
 CONFIG_NR_CPUS_DEFAULT=1
 CONFIG_NR_CPUS=1

 # i386 defconfig:
 CONFIG_NR_CPUS_RANGE_BEGIN=2
 CONFIG_NR_CPUS_RANGE_END=8
 CONFIG_NR_CPUS_DEFAULT=8
 CONFIG_NR_CPUS=8

 # i386 allyesconfig:
 CONFIG_NR_CPUS_RANGE_BEGIN=2
 CONFIG_NR_CPUS_RANGE_END=64
 CONFIG_NR_CPUS_DEFAULT=32
 CONFIG_NR_CPUS=32

 # x86_64 allnoconfig:
 CONFIG_NR_CPUS_RANGE_BEGIN=1
 CONFIG_NR_CPUS_RANGE_END=1
 CONFIG_NR_CPUS_DEFAULT=1
 CONFIG_NR_CPUS=1

 # x86_64 defconfig:
 CONFIG_NR_CPUS_RANGE_BEGIN=2
 CONFIG_NR_CPUS_RANGE_END=512
 CONFIG_NR_CPUS_DEFAULT=64
 CONFIG_NR_CPUS=64

 # x86_64 allyesconfig:
 CONFIG_NR_CPUS_RANGE_BEGIN=8192
 CONFIG_NR_CPUS_RANGE_END=8192
 CONFIG_NR_CPUS_DEFAULT=8192
 CONFIG_NR_CPUS=8192

Acked-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20180210113629.jcv6su3r4suuno63@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-02-11 11:51:34 +01:00
..
alpha pci-v4.16-changes 2018-02-06 09:59:40 -08:00
arc The core framework has a handful of patches this time around, mostly due 2018-02-01 16:56:07 -08:00
arm 2nd set of arm64 updates for 4.16: 2018-02-08 10:44:25 -08:00
arm64 2nd set of arm64 updates for 4.16: 2018-02-08 10:44:25 -08:00
blackfin The core framework has a handful of patches this time around, mostly due 2018-02-01 16:56:07 -08:00
c6x The core framework has a handful of patches this time around, mostly due 2018-02-01 16:56:07 -08:00
cris CRIS port changes for 4.16 2018-02-08 10:36:05 -08:00
frv The core framework has a handful of patches this time around, mostly due 2018-02-01 16:56:07 -08:00
h8300 The core framework has a handful of patches this time around, mostly due 2018-02-01 16:56:07 -08:00
hexagon The core framework has a handful of patches this time around, mostly due 2018-02-01 16:56:07 -08:00
ia64 Merge branch 'akpm' (patches from Andrew) 2018-02-06 22:15:42 -08:00
m32r The core framework has a handful of patches this time around, mostly due 2018-02-01 16:56:07 -08:00
m68k lib: optimize cpumask_next_and() 2018-02-06 18:32:44 -08:00
metag The core framework has a handful of patches this time around, mostly due 2018-02-01 16:56:07 -08:00
microblaze Microblaze patches for 4.16-rc1 2018-02-02 09:48:36 -08:00
mips MIPS fixes for 4.16-rc1 2018-02-07 11:31:05 -08:00
mn10300 The core framework has a handful of patches this time around, mostly due 2018-02-01 16:56:07 -08:00
nios2 The core framework has a handful of patches this time around, mostly due 2018-02-01 16:56:07 -08:00
openrisc The core framework has a handful of patches this time around, mostly due 2018-02-01 16:56:07 -08:00
parisc The core framework has a handful of patches this time around, mostly due 2018-02-01 16:56:07 -08:00
powerpc Merge branch 'linus' into sched/urgent, to resolve conflicts 2018-02-06 21:12:31 +01:00
riscv RISC-V changes for 4.16 2018-02-07 11:33:08 -08:00
s390 libnvdimm for 4.16 2018-02-06 10:41:33 -08:00
score arch/score/kernel/setup.c: combine two seq_printf() calls into one call in show_cpuinfo() 2018-02-06 18:32:47 -08:00
sh libnvdimm for 4.16 2018-02-06 10:41:33 -08:00
sparc libnvdimm for 4.16 2018-02-06 10:41:33 -08:00
tile The core framework has a handful of patches this time around, mostly due 2018-02-01 16:56:07 -08:00
um The core framework has a handful of patches this time around, mostly due 2018-02-01 16:56:07 -08:00
unicore32 lib: optimize cpumask_next_and() 2018-02-06 18:32:44 -08:00
x86 x86/Kconfig: Further simplify the NR_CPUS config 2018-02-11 11:51:34 +01:00
xtensa The core framework has a handful of patches this time around, mostly due 2018-02-01 16:56:07 -08:00
.gitignore
Kconfig Makefile: introduce CONFIG_CC_STACKPROTECTOR_AUTO 2018-02-06 18:32:44 -08:00