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f6635f873a
switch_mm is an expensive operations that has two users. flush_icache_deferred is only called within switch_mm and can be moved together. The function is expected to be more complicated when ASID support is added, so clean up eagerly. By moving them to a separate file we also removes some excessive dependency of tlbflush.h and cacheflush.h. Signed-off-by: Gary Guo <gary@garyguo.net> Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Palmer Dabbelt <palmer@sifive.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 Restructured Text 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.