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05950213a9
This contains two cgroup changes. Both are pretty low risk.
- Fix deadlock in cgroup destruction when repeatedly mounting/unmounting
perf_event and net_prio controllers. The issue occurs because
cgroup_destroy_wq has max_active=1, causing root destruction to wait for
CSS offline operations that are queued behind it. The fix splits
cgroup_destroy_wq into three separate workqueues to eliminate the
blocking.
- Set of->priv to NULL upon file release to make potential bugs to manifest
as NULL pointer dereferences rather than use-after-free errors.
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Merge tag 'cgroup-for-6.17-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
"This contains two cgroup changes. Both are pretty low risk.
- Fix deadlock in cgroup destruction when repeatedly
mounting/unmounting perf_event and net_prio controllers.
The issue occurs because cgroup_destroy_wq has max_active=1, causing
root destruction to wait for CSS offline operations that are queued
behind it.
The fix splits cgroup_destroy_wq into three separate workqueues to
eliminate the blocking.
- Set of->priv to NULL upon file release to make potential bugs to
manifest as NULL pointer dereferences rather than use-after-free
errors"
* tag 'cgroup-for-6.17-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup/psi: Set of->priv to NULL upon file release
cgroup: split cgroup_destroy_wq into 3 workqueues
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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 reStructuredText 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.