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The default atomic write max length in DEF_ATOMIC_WR_MAX_LENGTH is excessively large. For 512B LBS, we would get a 4MB max, but due to block layer atomic write restrictions this is limited to 512KB. Reduce DEF_ATOMIC_WR_MAX_LENGTH to a value which would be more realistic (for a real device supporting atomic writes), 64KB. Signed-off-by: John Garry <john.g.garry@oracle.com> Link: https://lore.kernel.org/r/20250501100241.930071-1-john.g.garry@oracle.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.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.