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Date:   Sat, 2 May 2020 10:43:46 +0300
From:   Mike Rapoport <rppt@...ux.ibm.com>
To:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Cc:     Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        linux-kernel@...r.kernel.org, Jonathan Corbet <corbet@....net>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Peter Xu <peterx@...hat.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Daniel Jordan <daniel.m.jordan@...cle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Ingo Molnar <mingo@...nel.org>,
        Alexandre Ghiti <alex@...ti.fr>, Arnd Bergmann <arnd@...db.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Collingbourne <pcc@...gle.com>,
        Frederic Weisbecker <frederic@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Will Deacon <will@...nel.org>,
        "Steven Rostedt (VMware)" <rostedt@...dmis.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Tejun Heo <tj@...nel.org>,
        Patrick Bellasi <patrick.bellasi@....com>,
        Dan Williams <dan.j.williams@...el.com>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        "Joel Fernandes (Google)" <joel@...lfernandes.org>,
        dri-devel@...ts.freedesktop.org, linux-mm@...ck.org
Subject: Re: [PATCH 11/14] docs: move other kAPI documents to core-api

Hello Mauro,

On Fri, May 01, 2020 at 05:37:55PM +0200, Mauro Carvalho Chehab wrote:
> There are a number of random documents that seem to be
> describing some aspects of the core-api. Move them to such
> directory, adding them at the core-api/index.rst file.
> 
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
> ---
>  Documentation/admin-guide/sysctl/vm.rst                     | 2 +-
>  Documentation/core-api/index.rst                            | 6 ++++++
>  Documentation/{mailbox.txt => core-api/mailbox.rst}         | 0
>  Documentation/{nommu-mmap.txt => core-api/nommu-mmap.rst}   | 0

The nommu-mmap mostly provides description of user visible behaviuour. I
think it's bettter to have it in admin-guide/mm/.

>  .../{this_cpu_ops.txt => core-api/this_cpu_ops.rst}         | 0
>  .../unaligned-memory-access.rst}                            | 0
>  Documentation/gpu/drm-mm.rst                                | 2 +-
>  arch/Kconfig                                                | 2 +-
>  init/Kconfig                                                | 2 +-
>  mm/Kconfig                                                  | 2 +-
>  mm/nommu.c                                                  | 2 +-
>  11 files changed, 12 insertions(+), 6 deletions(-)
>  rename Documentation/{mailbox.txt => core-api/mailbox.rst} (100%)
>  rename Documentation/{nommu-mmap.txt => core-api/nommu-mmap.rst} (100%)
>  rename Documentation/{this_cpu_ops.txt => core-api/this_cpu_ops.rst} (100%)
>  rename Documentation/{unaligned-memory-access.txt => core-api/unaligned-memory-access.rst} (100%)
> 
> diff --git a/Documentation/admin-guide/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst
> index 0329a4d3fa9e..0bf2f2a84a9f 100644
> --- a/Documentation/admin-guide/sysctl/vm.rst
> +++ b/Documentation/admin-guide/sysctl/vm.rst
> @@ -583,7 +583,7 @@ trimming of allocations is initiated.
>  
>  The default value is 1.
>  
> -See Documentation/nommu-mmap.txt for more information.
> +See Documentation/core-api/nommu-mmap.rst for more information.
>  
>  
>  numa_zonelist_order
> diff --git a/Documentation/core-api/index.rst b/Documentation/core-api/index.rst
> index eeac63ba17c3..fe03a639a91a 100644
> --- a/Documentation/core-api/index.rst
> +++ b/Documentation/core-api/index.rst
> @@ -38,10 +38,14 @@ Library functionality that is used throughout the kernel.
>     circular-buffers
>     rbtree
>     generic-radix-tree
> +   mailbox
>     packing
> +   rbtree
> +   this_cpu_ops
>     timekeeping
>     errseq
>  
> +
>  Concurrency primitives
>  ======================
>  
> @@ -82,11 +86,13 @@ more memory-management documentation in :doc:`/vm/index`.
>     :maxdepth: 1
>  
>     memory-allocation
> +   unaligned-memory-access
>     dma-api
>     dma-api-howto
>     dma-attributes
>     dma-isa-lpc
>     bus-virt-phys-mapping
> +   nommu-mmap
>     mm-api
>     genalloc
>     pin_user_pages
> diff --git a/Documentation/mailbox.txt b/Documentation/core-api/mailbox.rst
> similarity index 100%
> rename from Documentation/mailbox.txt
> rename to Documentation/core-api/mailbox.rst
> diff --git a/Documentation/nommu-mmap.txt b/Documentation/core-api/nommu-mmap.rst
> similarity index 100%
> rename from Documentation/nommu-mmap.txt
> rename to Documentation/core-api/nommu-mmap.rst
> diff --git a/Documentation/this_cpu_ops.txt b/Documentation/core-api/this_cpu_ops.rst
> similarity index 100%
> rename from Documentation/this_cpu_ops.txt
> rename to Documentation/core-api/this_cpu_ops.rst
> diff --git a/Documentation/unaligned-memory-access.txt b/Documentation/core-api/unaligned-memory-access.rst
> similarity index 100%
> rename from Documentation/unaligned-memory-access.txt
> rename to Documentation/core-api/unaligned-memory-access.rst
> diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst
> index 1839762044be..e0bbcbb6f512 100644
> --- a/Documentation/gpu/drm-mm.rst
> +++ b/Documentation/gpu/drm-mm.rst
> @@ -314,7 +314,7 @@ To use drm_gem_cma_get_unmapped_area(), drivers must fill the struct
>  a pointer on drm_gem_cma_get_unmapped_area().
>  
>  More detailed information about get_unmapped_area can be found in
> -Documentation/nommu-mmap.txt
> +Documentation/core-api/nommu-mmap.rst
>  
>  Memory Coherency
>  ----------------
> diff --git a/arch/Kconfig b/arch/Kconfig
> index 786a85d4ad40..b0b4046c9d13 100644
> --- a/arch/Kconfig
> +++ b/arch/Kconfig
> @@ -147,7 +147,7 @@ config HAVE_EFFICIENT_UNALIGNED_ACCESS
>  	  problems with received packets if doing so would not help
>  	  much.
>  
> -	  See Documentation/unaligned-memory-access.txt for more
> +	  See Documentation/core-api/unaligned-memory-access.rst for more
>  	  information on the topic of unaligned memory accesses.
>  
>  config ARCH_USE_BUILTIN_BSWAP
> diff --git a/init/Kconfig b/init/Kconfig
> index 492bb7000aa4..61ccfd9243e3 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -1950,7 +1950,7 @@ config MMAP_ALLOW_UNINITIALIZED
>  	  userspace.  Since that isn't generally a problem on no-MMU systems,
>  	  it is normally safe to say Y here.
>  
> -	  See Documentation/nommu-mmap.txt for more information.
> +	  See Documentation/core-api/nommu-mmap.rst for more information.
>  
>  config SYSTEM_DATA_VERIFICATION
>  	def_bool n
> diff --git a/mm/Kconfig b/mm/Kconfig
> index db626b8d4fdb..2a133c40a4b7 100644
> --- a/mm/Kconfig
> +++ b/mm/Kconfig
> @@ -382,7 +382,7 @@ config NOMMU_INITIAL_TRIM_EXCESS
>  	  This option specifies the initial value of this option.  The default
>  	  of 1 says that all excess pages should be trimmed.
>  
> -	  See Documentation/nommu-mmap.txt for more information.
> +	  See Documentation/core-api/nommu-mmap.rst for more information.
>  
>  config TRANSPARENT_HUGEPAGE
>  	bool "Transparent Hugepage Support"
> diff --git a/mm/nommu.c b/mm/nommu.c
> index 371697bf372d..e3e707d6f124 100644
> --- a/mm/nommu.c
> +++ b/mm/nommu.c
> @@ -5,7 +5,7 @@
>   *  Replacement code for mm functions to support CPU's that don't
>   *  have any form of memory management unit (thus no virtual memory).
>   *
> - *  See Documentation/nommu-mmap.txt
> + *  See Documentation/core-api/nommu-mmap.rst
>   *
>   *  Copyright (c) 2004-2008 David Howells <dhowells@...hat.com>
>   *  Copyright (c) 2000-2003 David McCullough <davidm@...pgear.com>
> -- 
> 2.25.4
> 

-- 
Sincerely yours,
Mike.

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