linux-kernel - Re: [PATCH 2/2] lib/xz: Fix XZ_DYNALLOC to avoid useless memory reallocations.

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Message-ID: <20191108202754.GG18744@zorba>
Date:   Fri, 8 Nov 2019 12:27:54 -0800
From:   Daniel Walker <danielwa@...co.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Lasse Collin <lasse.collin@...aani.org>, Yu Sun <yusun2@...co.com>,
        xe-linux-external@...co.com, Daniel Walker <dwalker@...o99.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] lib/xz: Fix XZ_DYNALLOC to avoid useless memory
 reallocations.

On Fri, Nov 08, 2019 at 12:00:40PM -0800, Daniel Walker wrote:
> From: Lasse Collin <lasse.collin@...aani.org>
> 
> s->dict.allocated was initialized to 0 but never set after
> a successful allocation, thus the code always thought that
> the dictionary buffer has to be reallocated.
> 
> For the original commit to xz-embedded.git, please refer to:
> https://git.tukaani.org/?p=xz-embedded.git;a=commit;h=40d291b
> 
> Signed-off-by: Yu Sun <yusun2@...co.com>


Yu made me aware that Lasse had sent this on Nov. 4. I would recommend you
take that patch, and disregard this one. Cisco is using it and we would like
to see it merged.

Daniel