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Re: [PATCH v5] fork: free vmapped stacks in cache when cpus are offline

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On Sat, 11 Feb 2017, kbuild test robot wrote:

> Hi Hoeun,
> 
> [auto build test ERROR on linus/master]
> [also build test ERROR on v4.10-rc7 next-20170210]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> 
> url:    https://github.com/0day-ci/linux/commits/Hoeun-Ryu/fork-free-vmapped-stacks-in-cache-when-cpus-are-offline/20170211-183401
> config: ia64-allmodconfig (attached as .config)
> compiler: ia64-linux-gcc (GCC) 6.2.0
> reproduce:
>         wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # save the attached .config to linux build tree
>         make.cross ARCH=ia64 
> 
> All errors (new ones prefixed by >>):
> 
>    kernel/fork.c: In function 'fork_init':
> >> kernel/fork.c:483:2: error: implicit declaration of function 'vm_stack_cache_init' [-Werror=implicit-function-declaration]
>      vm_stack_cache_init();
>      ^~~~~~~~~~~~~~~~~~~

Right. This needs to move to a different place as that part is nested inside

#ifndef CONFIG_ARCH_THREAD_STACK_ALLOCATOR

That's an horrible ifdef maze in that file.

Thanks,

	tglx

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Re: [PATCH v5] fork: free vmapped stacks in cache when cpus are  offline Thomas Gleixner <tglx@linutronix.de> - 2017-02-11 21:30 +0100
  Re: [PATCH v5] fork: free vmapped stacks in cache when cpus are offline Hoeun Ryu <hoeun.ryu@gmail.com> - 2017-02-12 02:50 +0100
    Re: [PATCH v5] fork: free vmapped stacks in cache when cpus are  offline Thomas Gleixner <tglx@linutronix.de> - 2017-02-12 13:30 +0100

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