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Since commit13bb483d32("btrfs: zoned: activate metadata block group on write time"), we activate a metadata block group at the write time. If the zone capacity is small enough, we can allocate the entire region before the first write. Then, we hit the btrfs_zoned_bg_is_full() in btrfs_zone_activate() and the activation fails. For a data block group, we activate it at the allocation time and we should check the fullness condition in the caller side. Add, a WARN to check the fullness condition. For a metadata block group, we don't need the fullness check because we activate it at the write time. Instead, activating it once it is written should be invalid. Catch that with a WARN too. Fixes:13bb483d32("btrfs: zoned: activate metadata block group on write time") CC: stable@vger.kernel.org # 6.6+ Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com> 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 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.