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Subject: Re: [PATCH 05/18] mm, elf: handle vm_brk error
To: Michal Hocko <mhocko@kernel.org>, LKML <linux-kernel@vger.kernel.org>
References: <1456752417-9626-1-git-send-email-mhocko@kernel.org>
 <1456752417-9626-6-git-send-email-mhocko@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org,
        Alex Deucher <alexander.deucher@amd.com>,
        Alex Thorlton <athorlton@sgi.com>,
        Andrea Arcangeli <aarcange@redhat.com>,
        Andy Lutomirski <luto@amacapital.net>,
        Benjamin LaHaise <bcrl@kvack.org>,
        =?UTF-8?Q?Christian_K=c3=b6nig?= <christian.koenig@amd.com>,
        Daniel Vetter <daniel.vetter@intel.com>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        David Airlie <airlied@linux.ie>, Davidlohr Bueso <dave@stgolabs.net>,
        David Rientjes <rientjes@google.com>,
        "H . Peter Anvin" <hpa@zytor.com>, Hugh Dickins <hughd@google.com>,
        Ingo Molnar <mingo@kernel.org>, Johannes Weiner <hannes@cmpxchg.org>,
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        Konstantin Khlebnikov <koct9i@gmail.com>, linux-arch@vger.kernel.org,
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        Peter Zijlstra <peterz@infradead.org>,
        Petr Cermak <petrcermak@chromium.org>,
        Thomas Gleixner <tglx@linutronix.de>, Michal Hocko <mhocko@suse.com>,
        Alexander Viro <viro@zeniv.linux.org.uk>
From: Vlastimil Babka <vbabka@suse.cz>
Message-ID: <56E29F75.4010004@suse.cz>
Date: Fri, 11 Mar 2016 11:35:33 +0100
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On 02/29/2016 02:26 PM, Michal Hocko wrote:
> From: Michal Hocko <mhocko@suse.com>
>
> load_elf_library doesn't handle vm_brk failure although nothing really
> indicates it cannot do that because the function is allowed to fail
> due to vm_mmap failures already. This might be not a problem now
> but later patch will make vm_brk killable (resp. mmap_sem for write
> waiting will become killable) and so the failure will be more probable.
>
> Cc: Alexander Viro <viro@zeniv.linux.org.uk>
> Signed-off-by: Michal Hocko <mhocko@suse.com>

Acked-by: Vlastimil Babka <vbabka@suse.cz>