Re: [PATCH 1/2] lib: add fast lzo decompressor

[H. Peter Anvin]

Andreas Robinson wrote:
> This patch adds an LZO decompressor tweaked to be faster than
> the 'safe' decompressor already in the kernel.
> 
> On x86_64, it runs in roughly 80% of the time needed by the safe
> decompressor.
> 
> This function is inherently insecure and can cause buffer overruns.
> It is only intended for decompressing implicitly trusted data, such
> as an initramfs and the kernel itself.
> 
> As such, the function is neither exported nor declared in a header.
> 

OK, I'm more than a bit nervous about that, especially since we're
trying to make the decompression functions more generic.

Furthermore, is there a specific reason you didn't implent this for the
kernel itself as well as for the initramfs?  I'd really would strongly
prefer if the two compression sets didn't diverge.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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