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7ae5840e6f
Remove the misleading flush "handling" when zapping invalidated TDP MMU roots, and document that flushing is unnecessary for all flavors of MMUs when zapping invalid/obsolete roots/pages. The "handling" in the TDP MMU is dead code, as zap_gfn_range() is called with shared=true, in which case it will never return true due to the flushing being handled by tdp_mmu_zap_spte_atomic(). No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Reviewed-by: Ben Gardon <bgardon@google.com> Message-Id: <20220226001546.360188-6-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.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.