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| Filename | Latest commit message | Latest commit date |
|---|---|---|
92f6ebead8
commit d23b5c577715892c87533b13923306acc6243f93 upstream.
At present, when we perform operations on the cgroup root_list, we must
hold the cgroup_mutex, which is a relatively heavyweight lock. In reality,
we can make operations on this list RCU-safe, eliminating the need to hold
the cgroup_mutex during traversal. Modifications to the list only occur in
the cgroup root setup and destroy paths, which should be infrequent in a
production environment. In contrast, traversal may occur frequently.
Therefore, making it RCU-safe would be beneficial.
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
[fp: adapt to 5.10 mainly because of changes made by e210a89f5b07
("cgroup.c: add helper __cset_cgroup_from_root to cleanup duplicated
codes")]
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
[Shivani: Modified to apply on v5.4.y]
Signed-off-by: Shivani Agarwal <shivani.agarwal@broadcom.com>
Reviewed-by: Siddh Raman Pant <siddh.raman.pant@oracle.com>
Signed-off-by: Siddh Raman Pant <siddh.raman.pant@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.