linux-kernel - Re: [PATCH v4 2/2] powerpc/kexec: move kexec files into a dedicated subdir.

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Message-ID: <20191119185113.Horde.6OywM5Gmhq3LRZDTsd-7HA1@messagerie.si.c-s.fr>
Date:   Tue, 19 Nov 2019 18:51:13 +0100
From:   Christophe Leroy <christophe.leroy@....fr>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Paul Mackerras <paulus@...ba.org>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: Re: [PATCH v4 2/2] powerpc/kexec: move kexec files into a dedicated
 subdir.

Michael Ellerman <mpe@...erman.id.au> a écrit :

> Christophe Leroy <christophe.leroy@....fr> writes:
>> arch/powerpc/kernel/ contains 8 files dedicated to kexec.
>>
>> Move them into a dedicated subdirectory.
>>
>> Signed-off-by: Christophe Leroy <christophe.leroy@....fr>
>>
>> ---
>> v2: moved crash.c as well as it's part of kexec suite.
>> v3: renamed files to remove 'kexec' keyword from names.
>> v4: removed a ifdef in kexec/Makefile
>> ---
>>  arch/powerpc/kernel/Makefile                       | 19 +---------------
>>  arch/powerpc/kernel/kexec/Makefile                 | 25  
>> ++++++++++++++++++++++
>>  arch/powerpc/kernel/{ => kexec}/crash.c            |  0
>>  .../kernel/{kexec_elf_64.c => kexec/elf_64.c}      |  0
>>  arch/powerpc/kernel/{ima_kexec.c => kexec/ima.c}   |  0
>>  .../kernel/{machine_kexec.c => kexec/machine.c}    |  0
>>  .../{machine_kexec_32.c => kexec/machine_32.c}     |  0
>>  .../{machine_kexec_64.c => kexec/machine_64.c}     |  0
>>  .../machine_file_64.c}                             |  0
>>  .../{kexec_relocate_32.S => kexec/relocate_32.S}   |  2 +-
>>  10 files changed, 27 insertions(+), 19 deletions(-)
>>  create mode 100644 arch/powerpc/kernel/kexec/Makefile
>>  rename arch/powerpc/kernel/{ => kexec}/crash.c (100%)
>>  rename arch/powerpc/kernel/{kexec_elf_64.c => kexec/elf_64.c} (100%)
>>  rename arch/powerpc/kernel/{ima_kexec.c => kexec/ima.c} (100%)
>>  rename arch/powerpc/kernel/{machine_kexec.c => kexec/machine.c} (100%)
>>  rename arch/powerpc/kernel/{machine_kexec_32.c =>  
>> kexec/machine_32.c} (100%)
>>  rename arch/powerpc/kernel/{machine_kexec_64.c =>  
>> kexec/machine_64.c} (100%)
>>  rename arch/powerpc/kernel/{machine_kexec_file_64.c =>  
>> kexec/machine_file_64.c} (100%)
>>  rename arch/powerpc/kernel/{kexec_relocate_32.S =>  
>> kexec/relocate_32.S} (99%)
>
> I'm inclined to move the directory out of kernel, ie. up a level with mm
> and so on.
>
> And I also don't think the "machine" naming is useful anymore. It comes
> from the naming of the arch functions, eg. machine_kexec(), which was
> named to be analogous to machine_restart().
>
> So how about:
>
>   arch/powerpc/{kernel/machine_kexec.c => kexec/core.c}
>   arch/powerpc/{kernel/machine_kexec_32.c => kexec/core_32.c}
>   arch/powerpc/{kernel/machine_kexec_64.c => kexec/core_64.c}
>   arch/powerpc/{kernel => kexec}/crash.c
>   arch/powerpc/{kernel/kexec_elf_64.c => kexec/elf_64.c}
>   arch/powerpc/{kernel/machine_kexec_file_64.c => kexec/file_load.c}
>   arch/powerpc/{kernel/ima_kexec.c => kexec/ima.c}
>   arch/powerpc/{kernel/kexec_relocate_32.S => kexec/relocate_32.S}
>
> And we end up with:
>
>   $ find arch/powerpc/kexec
>   arch/powerpc/kexec/
>   arch/powerpc/kexec/file_load.c
>   arch/powerpc/kexec/relocate_32.S
>   arch/powerpc/kexec/core_64.c
>   arch/powerpc/kexec/ima.c
>   arch/powerpc/kexec/core.c
>   arch/powerpc/kexec/core_32.c
>   arch/powerpc/kexec/Makefile
>   arch/powerpc/kexec/crash.c
>   arch/powerpc/kexec/elf_64.c

That looks good

Christophe