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Re: [PATCH 04/13] mm: Track NR_KERNEL_STACK in pages instead of number of stacks

From Josh Poimboeuf <jpoimboe@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH 04/13] mm: Track NR_KERNEL_STACK in pages instead of number of stacks
Date 2016-06-16 17:40 +0200
Message-ID <rKHyF-1EX-3@gated-at.bofh.it> (permalink)
References <rKtm1-1aF-3@gated-at.bofh.it> <rKtm1-1aF-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Wed, Jun 15, 2016 at 05:28:26PM -0700, Andy Lutomirski wrote:
> Currently, NR_KERNEL_STACK tracks the number of kernel stacks in a
> zone.  This only makes sense if each kernel stack exists entirely in
> one zone, and allowing vmapped stacks could break this assumption.
> 
> It turns out that the code for tracking kernel stack allocations in
> units of pages is slightly simpler, so just switch to counting
> pages.
> 
> Cc: Vladimir Davydov <vdavydov@virtuozzo.com>
> Cc: Johannes Weiner <hannes@cmpxchg.org>
> Cc: Michal Hocko <mhocko@kernel.org>
> Cc: linux-mm@kvack.org
> Signed-off-by: Andy Lutomirski <luto@kernel.org>
> ---
>  fs/proc/meminfo.c | 2 +-
>  kernel/fork.c     | 3 ++-
>  mm/page_alloc.c   | 3 +--
>  3 files changed, 4 insertions(+), 4 deletions(-)

You missed another usage of NR_KERNEL_STACK in drivers/base/node.c.


-- 
Josh

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[PATCH 04/13] mm: Track NR_KERNEL_STACK in pages instead of number of stacks Andy Lutomirski <luto@kernel.org> - 2016-06-16 02:30 +0200
  Re: [PATCH 04/13] mm: Track NR_KERNEL_STACK in pages instead of  number of stacks Josh Poimboeuf <jpoimboe@redhat.com> - 2016-06-16 17:40 +0200
    Re: [PATCH 04/13] mm: Track NR_KERNEL_STACK in pages instead of  number of stacks Andy Lutomirski <luto@amacapital.net> - 2016-06-16 19:50 +0200
      Re: [PATCH 04/13] mm: Track NR_KERNEL_STACK in pages instead of  number of stacks Josh Poimboeuf <jpoimboe@redhat.com> - 2016-06-16 21:40 +0200
  Re: [PATCH 04/13] mm: Track NR_KERNEL_STACK in pages instead of  number of stacks Andy Lutomirski <luto@amacapital.net> - 2016-06-16 19:30 +0200
    Re: [PATCH 04/13] mm: Track NR_KERNEL_STACK in pages instead of  number of stacks Andy Lutomirski <luto@amacapital.net> - 2016-06-16 21:30 +0200

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