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Message-ID: <e3a637af-ed6f-cd18-9423-bdb34ae60f3b@infradead.org>
Date: Wed, 12 Jul 2023 16:46:25 -0700
From: Randy Dunlap <rdunlap@...radead.org>
To: Gao Xiang <hsiangkao@...ux.alibaba.com>,
linux-erofs@...ts.ozlabs.org
Cc: LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RESEND] erofs: DEFLATE compression support
Hi--
On 7/12/23 16:33, Gao Xiang wrote:
> diff --git a/fs/erofs/Kconfig b/fs/erofs/Kconfig
> index f259d92c9720..d7b5327215f0 100644
> --- a/fs/erofs/Kconfig
> +++ b/fs/erofs/Kconfig
> @@ -99,6 +99,21 @@ config EROFS_FS_ZIP_LZMA
>
> If unsure, say N.
>
> +config EROFS_FS_ZIP_DEFLATE
> + bool "EROFS DEFLATE compressed data support"
> + depends on EROFS_FS_ZIP
> + select ZLIB_INFLATE
> + help
> + Saying Y here includes support for reading EROFS file systems
> + containing DEFLATE compressed data. It gives better compression
> + ratios than the default LZ4 format, whileas it costs more CPU
while
or although
or but
> + overhead.
> +
> + DEFLATE support is an experimental feature for now and so most
> + file systems will be readable without selecting this option.
> +
> + If unsure, say N.
--
~Randy
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