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61b05a9fd4aec2dff0bbdf9d16ee000b24b33f41
kvm_mmu_unload() destroys all the PGD caches. Use the lighter kvm_mmu_sync_roots() and kvm_mmu_sync_prev_roots() instead. Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com> Message-Id: <20211019110154.4091-5-jiangshanlai@gmail.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.
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