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| author | Waiman Long <longman@redhat.com> | 2023-11-27 14:51:05 -0500 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2023-11-28 06:45:11 -1000 |
| commit | 877c737db9355acaa1ec2fd2b8dbdaff82605df7 (patch) | |
| tree | e2d353df3c59f8a51aeda0828fa30919fcb44032 /Documentation/admin-guide | |
| parent | 202595663905384c4c629afd7b897af63a1563b5 (diff) | |
| download | linux-877c737db9355acaa1ec2fd2b8dbdaff82605df7.tar.gz | |
cgroup/cpuset: Expose cpuset.cpus.isolated
The root-only cpuset.cpus.isolated control file shows the current set
of isolated CPUs in isolated partitions. This control file is currently
exposed only with the cgroup_debug boot command line option which also
adds the ".__DEBUG__." prefix. This is actually a useful control file if
users want to find out which CPUs are currently in an isolated state by
the cpuset controller. Remove CFTYPE_DEBUG flag for this control file and
make it available by default without any prefix.
The test_cpuset_prs.sh test script and the cgroup-v2.rst documentation
file are also updated accordingly. Minor code change is also made in
test_cpuset_prs.sh to avoid false test failure when running on debug
kernel.
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/cgroup-v2.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst index cf5651a11df859..30f6ff2eba47f9 100644 --- a/Documentation/admin-guide/cgroup-v2.rst +++ b/Documentation/admin-guide/cgroup-v2.rst @@ -2316,6 +2316,13 @@ Cpuset Interface Files treated to have an implicit value of "cpuset.cpus" in the formation of local partition. + cpuset.cpus.isolated + A read-only and root cgroup only multiple values file. + + This file shows the set of all isolated CPUs used in existing + isolated partitions. It will be empty if no isolated partition + is created. + cpuset.cpus.partition A read-write single value file which exists on non-root cpuset-enabled cgroups. This flag is owned by the parent cgroup |