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72bb52620f
Previously, for each HEAD lcluster, it can be either HEAD or PLAIN lcluster to indicate whether the whole pcluster is compressed or not. In this patch, a new HEAD2 head type is introduced to specify another compression algorithm other than the primary algorithm for each compressed file, which can be used for upcoming LZMA compression and LZ4 range dictionary compression for various data patterns. It has been stayed in the EROFS roadmap for years. Complete it now! Link: https://lore.kernel.org/r/20211017165721.2442-1-xiang@kernel.org Reviewed-by: Yue Hu <huyue2@yulong.com> Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.