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Date: Wed, 09 Sep 2009 11:45:15 +0800
From: Li Zefan <lizf@...fujitsu.com>
To: David Rientjes <rientjes@...gle.com>
CC: Dave Hansen <dave@...ux.vnet.ibm.com>,
Andrew Morton <akpm@...ux-foundation.org>,
linux-kernel@...r.kernel.org
Subject: Re: [patch 3/4 -mm] flex_array: poison free elements
11:41, David Rientjes wrote:
> On Wed, 9 Sep 2009, Li Zefan wrote:
>
>> I was not talking about ftrace_ret_stack, I was talking about
>> struct ftrace_page and struct ftrace_profile_page. ;)
>>
>
> Gack, ftrace_page would probably be better off simply using the flex list
> implementation I suggested which constructs a list from page->lru since it
> doesn't appear to require indexing into the array, it simply requires an
> iteration in all cases (or am I wrong?). Flex lists could easily be made
> to support seqfiles.
>
Right, iteration is needed but indexing is not. I thought
about flex list too, flex array has some limitations which
make it hard to find a real user.
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