Johannes Thumshirn 694ce5e143 btrfs: zoned: reserve data_reloc block group on mount
Create a block group dedicated for data relocation on mount of a zoned
filesystem.

If there is already more than one empty DATA block group on mount, this
one is picked for the data relocation block group, instead of a newly
created one.

This is done to ensure, there is always space for performing garbage
collection and the filesystem is not hitting ENOSPC under heavy overwrite
workloads.

CC: stable@vger.kernel.org # 6.6+
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2025-07-21 23:56:31 +02:00
2022-09-28 09:02:20 +02:00
2025-06-21 07:34:28 -07:00
2025-02-19 14:53:27 -07:00
2025-07-20 15:18:33 -07:00
2024-03-18 03:36:32 -06:00

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 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.
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