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Re: [PATCH] mm: fix incorrect behavior when process virtual address space limit is exceeded

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Hi!
> [CCing Cyril]

Ah I've confused the vm_flags and flags variables and nobody caught that
during the review. But still sorry that I've messed up.

Looking at the code I agree with Michal that we try to find the
intesection poinlesly even for !MAP_FIXED which slowns down mmap() tiny
little bit which should be fixed.

The fix looks good to me.

-- 
Cyril Hrubis
chrubis@suse.cz
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[PATCH] mm: fix incorrect behavior when process virtual address space limit is exceeded Piotr Kwapulinski <kwapulinski.piotr@gmail.com> - 2015-11-16 18:40 +0100
  Re: [PATCH] mm: fix incorrect behavior when process virtual address  space limit is exceeded Michal Hocko <mhocko@kernel.org> - 2015-11-16 22:00 +0100
    Re: [PATCH] mm: fix incorrect behavior when process virtual address  space limit is exceeded Michal Hocko <mhocko@kernel.org> - 2015-11-17 01:40 +0100
    Re: [PATCH] mm: fix incorrect behavior when process virtual address  space limit is exceeded Cyril Hrubis <chrubis@suse.cz> - 2015-11-18 15:40 +0100
  Re: [PATCH] mm: fix incorrect behavior when process virtual  address space limit is exceeded Oleg Nesterov <oleg@redhat.com> - 2015-11-17 16:30 +0100
    Re: [PATCH] mm: fix incorrect behavior when process virtual  address space limit is exceeded Oleg Nesterov <oleg@redhat.com> - 2015-11-17 16:40 +0100
    [PATCH] mm/mmap.c: remove incorrect MAP_FIXED flag comparison from mmap_region Piotr Kwapulinski <kwapulinski.piotr@gmail.com> - 2015-11-17 18:30 +0100
      Re: [PATCH] mm/mmap.c: remove incorrect MAP_FIXED flag comparison  from mmap_region Andrew Morton <akpm@linux-foundation.org> - 2015-11-18 02:00 +0100
        Re: [PATCH] mm/mmap.c: remove incorrect MAP_FIXED flag comparison  from mmap_region Piotr Kwapulinski <kwapulinski.piotr@gmail.com> - 2015-11-18 17:30 +0100
          [PATCH v2 1/2] mm: fix incorrect behavior when process virtual address space limit is exceeded Piotr Kwapulinski <kwapulinski.piotr@gmail.com> - 2015-11-20 17:50 +0100
          [PATCH v2 2/2] mm/mmap.c: remove incorrect MAP_FIXED flag comparison from mmap_region Piotr Kwapulinski <kwapulinski.piotr@gmail.com> - 2015-11-20 17:50 +0100
            Re: [PATCH v2 2/2] mm/mmap.c: remove incorrect MAP_FIXED flag  comparison from mmap_region Michal Hocko <mhocko@kernel.org> - 2015-11-23 09:20 +0100
              [PATCH v3] mm/mmap.c: remove incorrect MAP_FIXED flag comparison from mmap_region Piotr Kwapulinski <kwapulinski.piotr@gmail.com> - 2015-11-23 18:40 +0100
                Re: [PATCH v3] mm/mmap.c: remove incorrect MAP_FIXED flag  comparison from mmap_region Andrew Morton <akpm@linux-foundation.org> - 2015-11-23 23:20 +0100
                Re: [PATCH v3] mm/mmap.c: remove incorrect MAP_FIXED flag comparison  from mmap_region Piotr Kwapulinski <kwapulinski.piotr@gmail.com> - 2015-11-24 17:20 +0100
                Re: [PATCH v3] mm/mmap.c: remove incorrect MAP_FIXED flag  comparison from mmap_region Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> - 2015-11-27 06:30 +0100
    Re: [PATCH] mm: fix incorrect behavior when process virtual address  space limit is exceeded Chris Metcalf <cmetcalf@ezchip.com> - 2015-11-17 18:40 +0100
      Re: [PATCH] mm: fix incorrect behavior when process virtual  address space limit is exceeded Oleg Nesterov <oleg@redhat.com> - 2015-11-17 19:10 +0100

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