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docs: move the kref doc into the core-api book

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This document covers core kernel objects. So, add it into the core-api
book.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/f385af13b4a6d3ff8c89beedd4506900e79ca72e.1588345503.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Mauro Carvalho Chehab 2020-05-01 17:37:52 +02:00 committed by Jonathan Corbet
parent e00b0ab86c
commit 1ac00669c3
3 changed files with 2 additions and 1 deletions
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1
Documentation/core-api/index.rst
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@ -31,6 +31,7 @@ Library functionality that is used throughout the kernel.
:maxdepth: 1 :maxdepth: 1
kobject kobject
kref
assoc_array assoc_array
xarray xarray
idr idr

2
Documentation/core-api/kobject.rst
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@ -210,7 +210,7 @@ statically and will warn the developer of this improper usage.
If all that you want to use a kobject for is to provide a reference counter If all that you want to use a kobject for is to provide a reference counter
for your structure, please use the struct kref instead; a kobject would be for your structure, please use the struct kref instead; a kobject would be
overkill. For more information on how to use struct kref, please see the overkill. For more information on how to use struct kref, please see the
file Documentation/kref.txt in the Linux kernel source tree. file Documentation/core-api/kref.rst in the Linux kernel source tree.
Creating "simple" kobjects Creating "simple" kobjects

0
Documentation/kref.txt → Documentation/core-api/kref.rst
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