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Re: [PATCH 1/4] mm: add new mmgrab() helper

From Vegard Nossum <vegard.nossum@oracle.com>
Newsgroups linux.kernel
Subject Re: [PATCH 1/4] mm: add new mmgrab() helper
Date 2016-12-16 12:00 +0100
Message-ID <sOYfo-2oy-33@gated-at.bofh.it> (permalink)
References <sOWwW-19z-41@gated-at.bofh.it> <sOXsZ-1Rx-1@gated-at.bofh.it> <sOXMm-2df-13@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 12/16/2016 11:19 AM, Kirill A. Shutemov wrote:
> On Fri, Dec 16, 2016 at 10:56:24AM +0100, Peter Zijlstra wrote:
>> But I must say mmget() vs mmgrab() is a wee bit confusing.
>
> mm_count vs mm_users is not very clear too. :)
>

I was about to say, I'm not sure it's much better than mmput() vs
mmdrop() or mm_users vs mm_count either, although the way I rationalised
it was the 3 vs 4 letters:

mmget() -- mmgrab()
mmput() -- mmdrop()
   ^^^ 3      ^^^^ 4


Vegard

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[PATCH 1/4] mm: add new mmgrab() helper Vegard Nossum <vegard.nossum@oracle.com> - 2016-12-16 10:00 +0100
  Re: [PATCH 4/4] [RFC!] mm: 'struct mm_struct' reference counting  debugging Michal Hocko <mhocko@kernel.org> - 2016-12-16 10:10 +0100
    Re: [PATCH 4/4] [RFC!] mm: 'struct mm_struct' reference counting  debugging Vegard Nossum <vegard.nossum@oracle.com> - 2016-12-16 10:50 +0100
      crash during oom reaper (was: Re: [PATCH 4/4] [RFC!] mm: 'struct  mm_struct' reference counting debugging) Michal Hocko <mhocko@kernel.org> - 2016-12-16 11:20 +0100
        Re: crash during oom reaper (was: Re: [PATCH 4/4] [RFC!] mm: 'struct  mm_struct' reference counting debugging) "Kirill A. Shutemov" <kirill@shutemov.name> - 2016-12-16 11:50 +0100
          Re: crash during oom reaper Michal Hocko <mhocko@kernel.org> - 2016-12-16 13:00 +0100
            Re: crash during oom reaper Michal Hocko <mhocko@kernel.org> - 2016-12-16 13:20 +0100
            Re: crash during oom reaper "Kirill A. Shutemov" <kirill@shutemov.name> - 2016-12-16 13:50 +0100
              Re: crash during oom reaper Michal Hocko <mhocko@kernel.org> - 2016-12-16 14:00 +0100
                Re: crash during oom reaper "Kirill A. Shutemov" <kirill@shutemov.name> - 2016-12-16 14:10 +0100
                Re: crash during oom reaper Michal Hocko <mhocko@kernel.org> - 2016-12-16 14:20 +0100
                Re: crash during oom reaper Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-12-18 14:50 +0100
                Re: crash during oom reaper Michal Hocko <mhocko@kernel.org> - 2016-12-18 17:10 +0100
        Re: crash during oom reaper Vegard Nossum <vegard.nossum@oracle.com> - 2016-12-16 14:20 +0100
          Re: crash during oom reaper Michal Hocko <mhocko@kernel.org> - 2016-12-16 15:10 +0100
            Re: crash during oom reaper Vegard Nossum <vegard.nossum@oracle.com> - 2016-12-16 15:30 +0100
              Re: crash during oom reaper Michal Hocko <mhocko@kernel.org> - 2016-12-16 15:50 +0100
                Re: crash during oom reaper Vegard Nossum <vegard.nossum@oracle.com> - 2016-12-16 16:00 +0100
          Re: crash during oom reaper Vegard Nossum <vegard.nossum@oracle.com> - 2016-12-16 15:10 +0100
  Re: [PATCH 3/4] mm: use mmget_not_zero() helper Michal Hocko <mhocko@kernel.org> - 2016-12-16 10:30 +0100
  Re: [PATCH 2/4] mm: add new mmget() helper Michal Hocko <mhocko@kernel.org> - 2016-12-16 10:30 +0100
  [PATCH 3/4] mm: use mmget_not_zero() helper Vegard Nossum <vegard.nossum@oracle.com> - 2016-12-16 10:40 +0100
  [PATCH 2/4] mm: add new mmget() helper Vegard Nossum <vegard.nossum@oracle.com> - 2016-12-16 10:50 +0100
  Re: [PATCH 1/4] mm: add new mmgrab() helper Michal Hocko <mhocko@kernel.org> - 2016-12-16 10:50 +0100
  Re: [PATCH 1/4] mm: add new mmgrab() helper Peter Zijlstra <peterz@infradead.org> - 2016-12-16 11:00 +0100
    Re: [PATCH 1/4] mm: add new mmgrab() helper "Kirill A. Shutemov" <kirill@shutemov.name> - 2016-12-16 11:20 +0100
      Re: [PATCH 1/4] mm: add new mmgrab() helper Michal Hocko <mhocko@kernel.org> - 2016-12-16 11:50 +0100
      Re: [PATCH 1/4] mm: add new mmgrab() helper Vegard Nossum <vegard.nossum@oracle.com> - 2016-12-16 12:00 +0100
    Re: [PATCH 1/4] mm: add new mmgrab() helper Vegard Nossum <vegard.nossum@oracle.com> - 2016-12-16 12:20 +0100

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