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2da20fd904
Expose a simple counter to userspace for monitoring tools. (akpm:2536c5c7d6added the documentation but the code changes were lost) Link: https://lkml.kernel.org/r/20250504180831.4190860-3-max.kellermann@ionos.com Fixes:2536c5c7d6("kernel/rcu/tree_stall: add /sys/kernel/rcu_stall_count") Signed-off-by: Max Kellermann <max.kellermann@ionos.com> Cc: Core Minyard <cminyard@mvista.com> Cc: Doug Anderson <dianders@chromium.org> Cc: Joel Granados <joel.granados@kernel.org> Cc: Max Kellermann <max.kellermann@ionos.com> Cc: Song Liu <song@kernel.org> Cc: Sourabh Jain <sourabhjain@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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.