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3613249a1b
Btrfs on-disk format has reserved the first 1MiB for the primary super block (at 64KiB offset) and bootloaders may also use this space. This behavior is only introduced since v4.1 btrfs-progs release, although kernel can ensure we never touch the reserved range of super blocks, it's better to inform the end users, and a balance will resolve the problem. Signed-off-by: Qu Wenruo <wqu@suse.com> [ update changelog and message ] Signed-off-by: David Sterba <dsterba@suse.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.