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Big pcluster indicates the size of compressed data for each physical pcluster is no longer fixed as block size, but could be more than 1 block (more accurately, 1 logical pcluster) When big pcluster feature is enabled for head0/1, delta0 of the 1st non-head lcluster index will keep block count of this pcluster in lcluster size instead of 1. Or, the compressed size of pcluster should be 1 lcluster if pcluster has no non-head lcluster index. Also note that BIG_PCLUSTER feature reuses COMPR_CFGS feature since it depends on COMPR_CFGS and will be released together. Link: https://lore.kernel.org/r/20210407043927.10623-6-xiang@kernel.org Acked-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Gao Xiang <hsiangkao@redhat.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.
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