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raw_exec: make raw exec driver work with cgroups v2 #12419

Merged
merged 2 commits into from
Apr 5, 2022
Merged

raw_exec: make raw exec driver work with cgroups v2 #12419

merged 2 commits into from
Apr 5, 2022

Commits on Apr 4, 2022

  1. raw_exec: make raw exec driver work with cgroups v2 

    This PR adds support for the raw_exec driver on systems with only cgroups v2.

The raw exec driver is able to use cgroups to manage processes. This happens
only on Linux, when exec_driver is enabled, and the no_cgroups option is not
set. The driver uses the freezer controller to freeze processes of a task,
issue a sigkill, then unfreeze. Previously the implementation assumed cgroups
v1, and now it also supports cgroups v2.

There is a bit of refactoring in this PR, but the fundamental design remains
the same.

Closes #12351 #12348
    @shoenig
    shoenig committed Apr 4, 2022
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Commits on Apr 5, 2022

  1. raw_exec: fixup review comments

    @shoenig
    shoenig committed Apr 5, 2022
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