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Re: [PATCH] fs, seqfile: always allow oom killer

From Eric Dumazet <eric.dumazet@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH] fs, seqfile: always allow oom killer
Date 2015-09-25 15:20 +0200
Message-ID <qcB4S-2t3-13@gated-at.bofh.it> (permalink)
References <qcvVx-3pb-33@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Fri, 2015-09-25 at 00:43 -0700, Greg Thelen wrote:
> Since commit 5cec38ac866b ("fs, seq_file: fallback to vmalloc instead of
> oom kill processes") seq_buf_alloc() avoids calling the oom killer for
> PAGE_SIZE or smaller allocations; but larger allocations can use the oom
> killer via vmalloc().  Thus reads of small files can return ENOMEM, but
> larger files use the oom killer to avoid ENOMEM.
> 
> Memory overcommit requires use of the oom killer to select a victim
> regardless of file size.
> 
> Enable oom killer for small seq_buf_alloc() allocations.
> 
> Signed-off-by: David Rientjes <rientjes@google.com>
> Signed-off-by: Greg Thelen <gthelen@google.com>
> ---

Acked-by: Eric Dumazet <edumazet@google.com>

Thanks guys.


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[PATCH] fs, seqfile: always allow oom killer Greg Thelen <gthelen@google.com> - 2015-09-25 09:50 +0200
  Re: [PATCH] fs, seqfile: always allow oom killer Eric Dumazet <eric.dumazet@gmail.com> - 2015-09-25 15:20 +0200

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