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Introduce a new core layer interface, damos_walk(). It aims to replace some damon_callback usages that access DAMOS schemes applied regions of ongoing kdamond with additional synchronizations. It receives a function pointer and asks kdamond to invoke it for any region that it tried to apply any DAMOS action within one scheme apply interval for every scheme of it. The function further waits until the kdamond finishes the invocations for every scheme, or cancels the request, and returns. The kdamond invokes the function as requested within the main loop. If it is deactivated by DAMOS watermarks or going out of the main loop, it marks the request as canceled, so that damos_walk() can wakeup and return. Link: https://lkml.kernel.org/r/20250103174400.54890-8-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Cc: Jonathan Corbet <corbet@lwn.net> 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.