linux-kernel - Re: [PATCH 02/12] selinux: tag avc cache alloc as non-critical

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Message-ID: <CACLa4punzEWjxQ79GF2o5h-up5A43oBuP-LEXGiA-kKQxcG1iQ@mail.gmail.com>
Date:	Thu, 10 May 2012 10:25:51 -0400
From:	Eric Paris <eparis@...isplace.org>
To:	Mel Gorman <mgorman@...e.de>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux-MM <linux-mm@...ck.org>,
	Linux-Netdev <netdev@...r.kernel.org>,
	Linux-NFS <linux-nfs@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	David Miller <davem@...emloft.net>,
	Trond Myklebust <Trond.Myklebust@...app.com>,
	Neil Brown <neilb@...e.de>,
	Christoph Hellwig <hch@...radead.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Mike Christie <michaelc@...wisc.edu>,
	Eric B Munson <emunson@...bm.net>
Subject: Re: [PATCH 02/12] selinux: tag avc cache alloc as non-critical

On Thu, May 10, 2012 at 9:54 AM, Mel Gorman <mgorman@...e.de> wrote:
> Failing to allocate a cache entry will only harm performance not
> correctness.  Do not consume valuable reserve pages for something
> like that.
>
> Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> Signed-off-by: Mel Gorman <mgorman@...e.de>

Acked-by: Eric Paris <eparis@...hat.com>

> ---
>  security/selinux/avc.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/security/selinux/avc.c b/security/selinux/avc.c
> index 8ee42b2..75c2977 100644
> --- a/security/selinux/avc.c
> +++ b/security/selinux/avc.c
> @@ -280,7 +280,7 @@ static struct avc_node *avc_alloc_node(void)
>  {
>        struct avc_node *node;
>
> -       node = kmem_cache_zalloc(avc_node_cachep, GFP_ATOMIC);
> +       node = kmem_cache_zalloc(avc_node_cachep, GFP_ATOMIC|__GFP_NOMEMALLOC);
>        if (!node)
>                goto out;
>
> --
> 1.7.9.2
>
> --
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