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d95ae5e253
Previously, there is no need to get the full decompressed length since EROFS supports partial decompression. However for some other cases such as fiemap, the full decompressed length is necessary for iomap to make it work properly. This patch adds a way to get the full decompressed length. Note that it takes more metadata overhead and it'd be avoided if possible in the performance sensitive scenario. Link: https://lore.kernel.org/r/20210818152231.243691-1-hsiangkao@linux.alibaba.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.