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Date: Sun, 27 Feb 2011 13:15:18 +0100
From: Ingo Molnar <mingo@elte.hu>
To: Mike Travis <travis@sgi.com>
Cc: David Rientjes <rientjes@google.com>, Jack Steiner <steiner@sgi.com>,
        Robin Holt <holt@sgi.com>, Len Brown <len.brown@intel.com>,
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        Tejun Heo <tj@kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Yinghai Lu <yinghai@kernel.org>
Subject: Re: [PATCH 1/4] printk: Allocate kernel log buffer earlier
Message-ID: <20110227121518.GA19165@elte.hu>
References: <20110225180633.857892225@gulag1.americas.sgi.com>
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 <20110227120949.GF16453@elte.hu>
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* Ingo Molnar <mingo@elte.hu> wrote:

> You could avoid all this ugly workaround of bootmem limitations by moving the 
> allocation to memblock_alloc() and desupporting the log_buf_len= boot parameter on 
> non-memblock architectures.

memblock_alloc() could return -ENOSYS on architectures that do not implement it - 
thus enabling such optional features without ugly #ifdef CONFIG_HAVE_MEMBLOCK 
conditionals.

Thanks,

	Ingo