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44562c71e2
Wrap vmalloc's pte table manipulation loops with arch_enter_lazy_mmu_mode() / arch_leave_lazy_mmu_mode(). This provides the arch code with the opportunity to optimize the pte manipulations. Note that vmap_pfn() already uses lazy mmu mode since it delegates to apply_to_page_range() which enters lazy mmu mode for both user and kernel mappings. These hooks will shortly be used by arm64 to improve vmalloc performance. Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Ryan Roberts <ryan.roberts@arm.com> Tested-by: Luiz Capitulino <luizcap@redhat.com> Link: https://lore.kernel.org/r/20250422081822.1836315-11-ryan.roberts@arm.com Signed-off-by: Will Deacon <will@kernel.org> |
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| README | ||
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.