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a7cacfb068
- The beginnings of a set of translations into Spanish, headed up by Carlos Bilbao. - More Chinese translations. - A change to the Sphinx "alabaster" theme by default for HTML generation. Unlike the previous default (Read the Docs), alabaster is shipped with Sphinx by default, reducing the number of other dependencies that need to be installed. It also (IMO) produces a cleaner and more readable result. - The ability to render the documentation into the texinfo format (something Sphinx could always do, we just never wired it up until now). Plus the usual collection of typo fixes, build-warning fixes, and minor updates. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAmOW8rQACgkQF0NaE2wM flhMPQf+IlaaSPmjjAM68RPW465KP1s7MxeAMz8RmQ+qNqHPlWznTnIOvH2NLNtA U4pcokeGunVEAsLdHCEE/VCUk76p8pWpEle4bKpbS0Qgl83IcLKnPLm8vWFc2Nv9 VdjntswlsMEIFRjD+4MJcPYcoi9ZtuU0fD/7rpyfU/hmJCBlPvyxb+BXPK5sf6a6 25Zex1UipNB+ieR7UD6Vf2ZhdUS0A0qzEQPaCTfCKzHmjEIVqq6G/+qnxAp3aSf2 at+Sz//3Ny86PO0qlmyeh656L1STMWjMjek6/Z6yKTWInxaeAo39cn8n//Sdpzfy mC7SMEwX7JtYKqgxZYfLDhU4txByKA== =0zgk -----END PGP SIGNATURE----- Merge tag 'docs-6.2' of git://git.lwn.net/linux Pull documentation updates from Jonathan Corbet: "This was a not-too-busy cycle for documentation; highlights include: - The beginnings of a set of translations into Spanish, headed up by Carlos Bilbao - More Chinese translations - A change to the Sphinx "alabaster" theme by default for HTML generation. Unlike the previous default (Read the Docs), alabaster is shipped with Sphinx by default, reducing the number of other dependencies that need to be installed. It also (IMO) produces a cleaner and more readable result. - The ability to render the documentation into the texinfo format (something Sphinx could always do, we just never wired it up until now) Plus the usual collection of typo fixes, build-warning fixes, and minor updates" * tag 'docs-6.2' of git://git.lwn.net/linux: (67 commits) Documentation/features: Use loongarch instead of loong Documentation/features-refresh.sh: Only sed the beginning "arch" of ARCH_DIR docs/zh_CN: Fix '.. only::' directive's expression docs/sp_SP: Add memory-barriers.txt Spanish translation docs/zh_CN/LoongArch: Update links of LoongArch ISA Vol1 and ELF psABI docs/LoongArch: Update links of LoongArch ISA Vol1 and ELF psABI Documentation/features: Update feature lists for 6.1 Documentation: Fixed a typo in bootconfig.rst docs/sp_SP: Add process coding-style translation docs/sp_SP: Add kernel-docs.rst Spanish translation docs: Create translations/sp_SP/process/, move submitting-patches.rst docs: Add book to process/kernel-docs.rst docs: Retire old resources from kernel-docs.rst docs: Update maintainer of kernel-docs.rst Documentation: riscv: Document the sv57 VM layout Documentation: USB: correct possessive "its" usage math64: fix kernel-doc return value warnings math64: add kernel-doc for DIV64_U64_ROUND_UP math64: favor kernel-doc from header files doc: add texinfodocs and infodocs targets ...
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ReStructuredText
394 lines
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ReStructuredText
====================
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The Linux Kernel API
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====================
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List Management Functions
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=========================
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.. kernel-doc:: include/linux/list.h
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:internal:
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Basic C Library Functions
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=========================
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When writing drivers, you cannot in general use routines which are from
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the C Library. Some of the functions have been found generally useful
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and they are listed below. The behaviour of these functions may vary
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slightly from those defined by ANSI, and these deviations are noted in
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the text.
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String Conversions
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------------------
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.. kernel-doc:: lib/vsprintf.c
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:export:
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.. kernel-doc:: include/linux/kstrtox.h
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:functions: kstrtol kstrtoul
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.. kernel-doc:: lib/kstrtox.c
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:export:
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.. kernel-doc:: lib/string_helpers.c
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:export:
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String Manipulation
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-------------------
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.. kernel-doc:: lib/string.c
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:export:
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.. kernel-doc:: include/linux/string.h
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:internal:
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.. kernel-doc:: mm/util.c
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:functions: kstrdup kstrdup_const kstrndup kmemdup kmemdup_nul memdup_user
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vmemdup_user strndup_user memdup_user_nul
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Basic Kernel Library Functions
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==============================
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The Linux kernel provides more basic utility functions.
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Bit Operations
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--------------
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.. kernel-doc:: include/asm-generic/bitops/instrumented-atomic.h
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:internal:
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.. kernel-doc:: include/asm-generic/bitops/instrumented-non-atomic.h
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:internal:
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.. kernel-doc:: include/asm-generic/bitops/instrumented-lock.h
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:internal:
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Bitmap Operations
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-----------------
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.. kernel-doc:: lib/bitmap.c
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:doc: bitmap introduction
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.. kernel-doc:: include/linux/bitmap.h
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:doc: declare bitmap
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.. kernel-doc:: include/linux/bitmap.h
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:doc: bitmap overview
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.. kernel-doc:: include/linux/bitmap.h
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:doc: bitmap bitops
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.. kernel-doc:: lib/bitmap.c
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:export:
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.. kernel-doc:: lib/bitmap.c
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:internal:
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.. kernel-doc:: include/linux/bitmap.h
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:internal:
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Command-line Parsing
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--------------------
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.. kernel-doc:: lib/cmdline.c
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:export:
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Sorting
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-------
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.. kernel-doc:: lib/sort.c
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:export:
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.. kernel-doc:: lib/list_sort.c
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:export:
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Text Searching
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--------------
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.. kernel-doc:: lib/textsearch.c
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:doc: ts_intro
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.. kernel-doc:: lib/textsearch.c
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:export:
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.. kernel-doc:: include/linux/textsearch.h
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:functions: textsearch_find textsearch_next \
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textsearch_get_pattern textsearch_get_pattern_len
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CRC and Math Functions in Linux
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===============================
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Arithmetic Overflow Checking
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----------------------------
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.. kernel-doc:: include/linux/overflow.h
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:internal:
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CRC Functions
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-------------
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.. kernel-doc:: lib/crc4.c
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:export:
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.. kernel-doc:: lib/crc7.c
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:export:
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.. kernel-doc:: lib/crc8.c
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:export:
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.. kernel-doc:: lib/crc16.c
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:export:
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.. kernel-doc:: lib/crc32.c
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.. kernel-doc:: lib/crc-ccitt.c
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:export:
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.. kernel-doc:: lib/crc-itu-t.c
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:export:
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Base 2 log and power Functions
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------------------------------
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.. kernel-doc:: include/linux/log2.h
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:internal:
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Integer power Functions
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-----------------------
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.. kernel-doc:: lib/math/int_pow.c
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:export:
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.. kernel-doc:: lib/math/int_sqrt.c
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:export:
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Division Functions
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------------------
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.. kernel-doc:: include/asm-generic/div64.h
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:functions: do_div
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.. kernel-doc:: include/linux/math64.h
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:internal:
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.. kernel-doc:: lib/math/gcd.c
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:export:
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UUID/GUID
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---------
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.. kernel-doc:: lib/uuid.c
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:export:
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Kernel IPC facilities
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=====================
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IPC utilities
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-------------
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.. kernel-doc:: ipc/util.c
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:internal:
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FIFO Buffer
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===========
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kfifo interface
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---------------
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.. kernel-doc:: include/linux/kfifo.h
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:internal:
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relay interface support
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=======================
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Relay interface support is designed to provide an efficient mechanism
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for tools and facilities to relay large amounts of data from kernel
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space to user space.
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relay interface
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---------------
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.. kernel-doc:: kernel/relay.c
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:export:
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.. kernel-doc:: kernel/relay.c
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:internal:
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Module Support
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==============
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Module Loading
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--------------
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.. kernel-doc:: kernel/kmod.c
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:export:
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Inter Module support
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--------------------
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Refer to the files in kernel/module/ for more information.
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Hardware Interfaces
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===================
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DMA Channels
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------------
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.. kernel-doc:: kernel/dma.c
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:export:
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Resources Management
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--------------------
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.. kernel-doc:: kernel/resource.c
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:internal:
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.. kernel-doc:: kernel/resource.c
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:export:
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MTRR Handling
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-------------
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.. kernel-doc:: arch/x86/kernel/cpu/mtrr/mtrr.c
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:export:
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Security Framework
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==================
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.. kernel-doc:: security/security.c
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:internal:
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.. kernel-doc:: security/inode.c
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:export:
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Audit Interfaces
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================
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.. kernel-doc:: kernel/audit.c
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:export:
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.. kernel-doc:: kernel/auditsc.c
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:internal:
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.. kernel-doc:: kernel/auditfilter.c
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:internal:
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Accounting Framework
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====================
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.. kernel-doc:: kernel/acct.c
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:internal:
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Block Devices
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=============
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.. kernel-doc:: include/linux/bio.h
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.. kernel-doc:: block/blk-core.c
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:export:
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.. kernel-doc:: block/blk-core.c
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:internal:
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.. kernel-doc:: block/blk-map.c
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:export:
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.. kernel-doc:: block/blk-sysfs.c
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:internal:
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.. kernel-doc:: block/blk-settings.c
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:export:
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.. kernel-doc:: block/blk-flush.c
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:export:
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.. kernel-doc:: block/blk-lib.c
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:export:
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.. kernel-doc:: block/blk-integrity.c
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:export:
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.. kernel-doc:: kernel/trace/blktrace.c
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:internal:
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.. kernel-doc:: block/genhd.c
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:internal:
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.. kernel-doc:: block/genhd.c
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:export:
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.. kernel-doc:: block/bdev.c
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:export:
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Char devices
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============
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.. kernel-doc:: fs/char_dev.c
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:export:
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Clock Framework
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===============
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The clock framework defines programming interfaces to support software
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management of the system clock tree. This framework is widely used with
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System-On-Chip (SOC) platforms to support power management and various
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devices which may need custom clock rates. Note that these "clocks"
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don't relate to timekeeping or real time clocks (RTCs), each of which
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have separate frameworks. These :c:type:`struct clk <clk>`
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instances may be used to manage for example a 96 MHz signal that is used
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to shift bits into and out of peripherals or busses, or otherwise
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trigger synchronous state machine transitions in system hardware.
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Power management is supported by explicit software clock gating: unused
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clocks are disabled, so the system doesn't waste power changing the
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state of transistors that aren't in active use. On some systems this may
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be backed by hardware clock gating, where clocks are gated without being
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disabled in software. Sections of chips that are powered but not clocked
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may be able to retain their last state. This low power state is often
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called a *retention mode*. This mode still incurs leakage currents,
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especially with finer circuit geometries, but for CMOS circuits power is
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mostly used by clocked state changes.
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Power-aware drivers only enable their clocks when the device they manage
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is in active use. Also, system sleep states often differ according to
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which clock domains are active: while a "standby" state may allow wakeup
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from several active domains, a "mem" (suspend-to-RAM) state may require
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a more wholesale shutdown of clocks derived from higher speed PLLs and
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oscillators, limiting the number of possible wakeup event sources. A
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driver's suspend method may need to be aware of system-specific clock
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constraints on the target sleep state.
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Some platforms support programmable clock generators. These can be used
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by external chips of various kinds, such as other CPUs, multimedia
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codecs, and devices with strict requirements for interface clocking.
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.. kernel-doc:: include/linux/clk.h
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:internal:
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Synchronization Primitives
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==========================
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Read-Copy Update (RCU)
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----------------------
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.. kernel-doc:: include/linux/rcupdate.h
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.. kernel-doc:: kernel/rcu/tree.c
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.. kernel-doc:: kernel/rcu/tree_exp.h
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.. kernel-doc:: kernel/rcu/update.c
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.. kernel-doc:: include/linux/srcu.h
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.. kernel-doc:: kernel/rcu/srcutree.c
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.. kernel-doc:: include/linux/rculist_bl.h
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.. kernel-doc:: include/linux/rculist.h
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.. kernel-doc:: include/linux/rculist_nulls.h
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.. kernel-doc:: include/linux/rcu_sync.h
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.. kernel-doc:: kernel/rcu/sync.c
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