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0342273e14
The former commit has a limitation that only up to 4 FCP address handlers could be processed per request. Although it suffices for most use cases, it is technically a regression. This commit lifts the restriction by reallocating the buffer from kernel heap when more than 4 handlers are registered. The allocation is performed within RCU read-side critical section, thus it uses GCP_ATOMIC flag. The buffer size is rounded up to the next power of two to align with kmalloc allocation units. Link: https://lore.kernel.org/r/20250803122015.236493-5-o-takashi@sakamocchi.jp Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
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.