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kernel/utsname_sysctl.c: print kernel arch

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Print the machine hardware name (UTS_MACHINE) in /proc/sys/kernel/arch.

This helps people who debug kernel with initramfs with minimal environment
(i.e.  without coreutils or even busybox) or allow to open sysfs file
instead of run 'uname -m' in high level languages.

Link: https://lkml.kernel.org/r/20220901194403.3819-1-pvorel@suse.cz
Signed-off-by: Petr Vorel <pvorel@suse.cz>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: David Sterba <dsterba@suse.com>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Petr Vorel
2022-09-01 21:44:03 +02:00
committed by Andrew Morton
parent 8ea0114eda
commit bfca3dd3d0
2 changed files with 12 additions and 0 deletions
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5
Documentation/admin-guide/sysctl/kernel.rst
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@@ -65,6 +65,11 @@ combining the following values:
4 s3_beep
= =======
arch
====
The machine hardware name, the same output as ``uname -m``
(e.g. ``x86_64`` or ``aarch64``).
auto_msgmni
===========