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WSL2-Linux-Kernel
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The source for the Linux kernel used in Windows Subsystem for Linux 2 (WSL2)
1 133 375 коммитов 10 Ветки 3 162 Теги 3,2 GiB
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Michal Koutný 46307fd6e2 cgroup: Reorganize css_set_lock and kernfs path processing 
The commit 74e4b956eb incorrectly wrapped kernfs_walk_and_get
(might_sleep) under css_set_lock (spinlock). css_set_lock is needed by
__cset_cgroup_from_root to ensure stable cset->cgrp_links but not for
kernfs_walk_and_get.

We only need to make sure that the returned root_cgrp won't be freed
under us. This is given in the case of global root because it is static
(cgrp_dfl_root.cgrp). When the root_cgrp is lower in the hierarchy, it
is pinned by cgroup_ns->root_cset (and `current` task cannot switch
namespace asynchronously so ns_proxy pins cgroup_ns).

Note this reasoning won't hold for root cgroups in v1 hierarchies,
therefore create a special-cased helper function just for the default
hierarchy.

Fixes: 74e4b956eb ("cgroup: Honor caller's cgroup NS when resolving path")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
 		2022-10-10 10:23:18 -10:00
Documentation Livepatching changes for 6.1 2022-10-10 11:36:19 -07:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
arch Locking changes for v6.1: 2022-10-10 09:44:12 -07:00
block cgroup changes for v6.1-rc1. 2022-10-10 11:12:25 -07:00
certs certs: make system keyring depend on built-in x509 parser 2022-09-24 04:31:18 +09:00
crypto crypto: blake2b: effectively disable frame size warning 2022-08-10 17:59:11 -07:00
drivers Random number generator updates for Linux 6.1-rc1. 2022-10-10 10:41:21 -07:00
fs printk changes for 6.1 2022-10-10 11:24:19 -07:00
include printk changes for 6.1 2022-10-10 11:24:19 -07:00
init Random number generator updates for Linux 6.1-rc1. 2022-10-10 10:41:21 -07:00
io_uring for-6.1/passthrough-2022-10-04 2022-10-07 09:35:50 -07:00
ipc ipc: mqueue: fix possible memory leak in init_mqueue_fs() 2022-10-09 16:10:22 -07:00
kernel cgroup: Reorganize css_set_lock and kernfs path processing 2022-10-10 10:23:18 -10:00
lib printk changes for 6.1 2022-10-10 11:24:19 -07:00
mm cgroup changes for v6.1-rc1. 2022-10-10 11:12:25 -07:00
net cgroup changes for v6.1-rc1. 2022-10-10 11:12:25 -07:00
rust Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
samples ARM: driver updates for 6.1 2022-10-06 11:04:57 -07:00
scripts Networking changes for 6.1. 2022-10-04 13:38:03 -07:00
security powerpc updates for 6.1 2022-10-09 14:05:15 -07:00
sound sound updates for 6.1-rc1 2022-10-05 12:02:07 -07:00
tools Livepatching changes for 6.1 2022-10-10 11:36:19 -07:00
usr Not a lot of material this cycle. Many singleton patches against various 2022-05-27 11:22:03 -07:00
virt KVM: remove KVM_REQ_UNHALT 2022-09-26 12:37:21 -04:00
.clang-format PCI/DOE: Add DOE mailbox support functions 2022-07-19 15:38:04 -07:00
.cocciconfig
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.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes
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.gitignore Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
.mailmap The first batch of KVM patches, mostly covering x86, which I 2022-10-09 09:39:55 -07:00
.rustfmt.toml rust: add `.rustfmt.toml` 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS drm for 5.20/6.0 2022-08-03 19:52:08 -07:00
Kbuild
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Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Here's the main clk pull request for this merge window. We have some 2022-10-08 10:06:48 -07:00
Makefile hardening updates for v6.1-rc1 2022-10-03 17:24:22 -07:00
README
…

README 

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.