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Qu Wenruo ced47a4db4 btrfs: factor out the main loop of btrfs_buffered_write() into a helper
Inside the main loop of btrfs_buffered_write() we are doing a lot of
heavy lifting inside a while() loop.

This makes it pretty hard to read, factor out the content into a helper,
copy_one_range() to do the work.

This has no functional change, but with some minor variable renames,
e.g. rename all "sector" into "block".

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
History 2025-05-15 14:30:39 +02:00
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README

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 reStructuredText 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.