Christoph Hellwig 2e38a84bc6 btrfs: simplify extent map splitting and rename split_zoned_em
split_zoned_em is only ever asked to split out the beginning of an extent
map.  Change it to only take a len to split out instead of a pre and post
region.

Also rename the function to split_extent_map as there is nothing zoned
device specific about it.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Tested-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-04-17 18:01:21 +02:00
2022-09-28 09:02:20 +02:00
2023-04-16 15:23:53 -07:00

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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