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032c7ed958
- Improve performance of Spectre-v2 mitigation on Falkor CPUs (if you're lucky
enough to have one)
- Select HAVE_MOVE_PMD. This has been shown to improve mremap() performance,
which is used heavily by the Android runtime GC, and it seems we forgot to
enable this upstream back in 2018.
- Ensure linker flags are consistent between LLVM and BFD
- Fix stale comment in Spectre mitigation rework
- Fix broken copyright header
- Fix KASLR randomisation of the linear map
- Prevent arm64-specific prctl()s from compat tasks (return -EINVAL)
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull more arm64 updates from Will Deacon:
"A small selection of further arm64 fixes and updates. Most of these
are fixes that came in during the merge window, with the exception of
the HAVE_MOVE_PMD mremap() speed-up which we discussed back in 2018
and somehow forgot to enable upstream.
- Improve performance of Spectre-v2 mitigation on Falkor CPUs (if
you're lucky enough to have one)
- Select HAVE_MOVE_PMD. This has been shown to improve mremap()
performance, which is used heavily by the Android runtime GC, and
it seems we forgot to enable this upstream back in 2018.
- Ensure linker flags are consistent between LLVM and BFD
- Fix stale comment in Spectre mitigation rework
- Fix broken copyright header
- Fix KASLR randomisation of the linear map
- Prevent arm64-specific prctl()s from compat tasks (return -EINVAL)"
Link: https://lore.kernel.org/kvmarm/20181108181201.88826-3-joelaf@google.com/
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: proton-pack: Update comment to reflect new function name
arm64: spectre-v2: Favour CPU-specific mitigation at EL2
arm64: link with -z norelro regardless of CONFIG_RELOCATABLE
arm64: Fix a broken copyright header in gen_vdso_offsets.sh
arm64: mremap speedup - Enable HAVE_MOVE_PMD
arm64: mm: use single quantity to represent the PA to VA translation
arm64: reject prctl(PR_PAC_RESET_KEYS) on compat tasks
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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.