linux-kernel - Re: [PATCH 08/11] btrfs: plumb level through the compression interface

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Message-ID: <20190129181743.bap6zerlaup5ewaq@MacBook-Pro-91.local>
Date:   Tue, 29 Jan 2019 13:17:44 -0500
From:   Josef Bacik <josef@...icpanda.com>
To:     Dennis Zhou <dennis@...nel.org>
Cc:     David Sterba <dsterba@...e.com>,
        Josef Bacik <josef@...icpanda.com>, Chris Mason <clm@...com>,
        Omar Sandoval <osandov@...ndov.com>,
        Nick Terrell <terrelln@...com>, kernel-team@...com,
        linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 08/11] btrfs: plumb level through the compression
 interface

On Mon, Jan 28, 2019 at 04:24:34PM -0500, Dennis Zhou wrote:
> Zlib compression supports multiple levels, but doesn't require changing
> in how a workspace itself is created and managed. Zstd introduces a
> different memory requirement such that higher levels of compression
> require more memory. This requires changes in how the alloc()/get()
> methods work for zstd. This pach plumbs compression level through the
> interface as a parameter in preparation for zstd compression levels.
> This gives the compression types opportunity to create/manage based on
> the compression level.
> 
> Signed-off-by: Dennis Zhou <dennis@...nel.org>

Reviewed-by: Josef Bacik <josef@...icpanda.com>

Thanks,

Josef