selftests/bpf: Add a test for objects stuck in free_by_rcu_ttracegrafted

Delete all elements of BPF_F_NO_PREALLOC hash map in one batch. The first
free_bulk() starts RCU tasks trace GP and the rest of the elements are
freed while it's in flight. Wait for call_rcu_ttrace_in_progress to clear
in bpf_mem_cache of every cpu and check that free_by_rcu_ttrace and
waiting_for_gp_ttrace lists are empty.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20260930095920.601738-4-alexei.starovoitov@gmail.com
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/security/landlock/Makefile b/security/landlock/Makefile
new file mode 100644
index 000000000..2711f4876
--- /dev/null
+++ b/security/landlock/Makefile
@@ -0,0 +1,22 @@
+obj-$(CONFIG_SECURITY_LANDLOCK) := landlock.o
+
+landlock-y := \
+	setup.o \
+	syscalls.o \
+	object.o \
+	ruleset.o \
+	cred.o \
+	task.o \
+	fs.o \
+	tsync.o \
+	domain.o
+
+landlock-$(CONFIG_INET) += net.o
+
+landlock-$(CONFIG_SECURITY_LANDLOCK_LOG) += \
+	id.o \
+	log.o
+
+landlock-$(CONFIG_AUDIT) += audit.o
+
+landlock-$(CONFIG_TRACEPOINTS) += trace.o