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Sami Tolvanen <samitolvanen@google.com> says: We noticed that 64-bit RISC-V kernels limit mmap_rnd_bits to 24 even if the hardware supports a larger virtual address space size [1]. These two patches allow mmap_rnd_bits_max to be changed during init, and bumps up the maximum randomness if we end up setting up 4/5-level paging at boot. * b4-shazam-merge: riscv: mm: Update mmap_rnd_bits_max mm: Change mmap_rnd_bits_max to __ro_after_init Link: https://lore.kernel.org/r/20230929211155.3910949-4-samitolvanen@google.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.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.