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c29383a874
Replace the now deprecated kmap_atomic() with kmap_local_page(). Optimize for the non-highmem cases and avoid disabling preemption and pagefaults, the caller's context is atomic anyway, but that is irrelevant to kmap. The memcpy itself does not require any such semantics and the mapping would hold valid across context switches anyway. Further, highmem is planned to to be removed[1]. [1] https://lore.kernel.org/all/4ff89b72-03ff-4447-9d21-dd6a5fe1550f@app.fastmail.com/ Signed-off-by: Davidlohr Bueso <dave@stgolabs.net> Link: https://patch.msgid.link/20251118210706.1816303-1-dave@stgolabs.net Signed-off-by: Christian Brauner <brauner@kernel.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.