[PATCH 11/17] selftests/cgroup: Test isolation accounting on direct child invalidation
From: Guopeng Zhang
Date: Thu Aug 20 2026 - 08:43:49 EST
From: Guopeng Zhang <zhangguopeng@xxxxxxxxxx>
Offline all but one CPU in a root child below an isolated parent. Check
the invalid child state, the effective CPU masks and isolated accounting
for the released offline CPUs.
Signed-off-by: Guopeng Zhang <zhangguopeng@xxxxxxxxxx>
---
tools/testing/selftests/cgroup/test_cpuset_prs.sh | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/tools/testing/selftests/cgroup/test_cpuset_prs.sh b/tools/testing/selftests/cgroup/test_cpuset_prs.sh
index 35c19738aaa4..fb11a3ab0f35 100755
--- a/tools/testing/selftests/cgroup/test_cpuset_prs.sh
+++ b/tools/testing/selftests/cgroup/test_cpuset_prs.sh
@@ -330,6 +330,11 @@ TEST_MATRIX=(
. . X4 . . 0 A1:1-3|A2:1-3|A3:2-3|XA2:|XA3: A1:P2|A2:P-2|A3:P-2 1-3"
" C0-3:X1-3:P2 C1-3:X2-3:P2 C2-3:X3:P2 \
. . C4:X . . 0 A1:1-3|A2:1-3|A3:2-3|XA2:|XA3: A1:P2|A2:P-2|A3:P-2 1-3"
+
+ # Direct invalidation returns child CPUs to the parent or its owner
+ " C1-4:P2 C3-4:P1 . . T:O1=0:O2=0:O4=0 . . . \
+ 0 A1:3|A2:3 A1:P2|A2:P-1 1-4"
+
# Local partition CPU change tests
" C0-5:P2 C4-5:P1 . . . C3-5 . . 0 A1:0-2|A2:3-5 A1:P2|A2:P1 0-2"
" C0-5:P2 C4-5:P1 . . C1-5 . . . 0 A1:1-3|A2:4-5 A1:P2|A2:P1 1-3"
--
2.43.0