From aeb709c767aeca996e6011133e4f7bdb2a4af652 Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Wed, 30 Sep 2026 09:59:20 +0000 Subject: selftests/bpf: Add a test for objects stuck in free_by_rcu_ttrace 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 Link: https://lore.kernel.org/bpf/20260930095920.601738-4-alexei.starovoitov@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi --- scripts/jobserver-exec | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100755 scripts/jobserver-exec (limited to 'scripts/jobserver-exec') diff --git a/scripts/jobserver-exec b/scripts/jobserver-exec new file mode 100755 index 000000000..21b319e6c --- /dev/null +++ b/scripts/jobserver-exec @@ -0,0 +1,35 @@ +#!/usr/bin/env python3 +# SPDX-License-Identifier: GPL-2.0+ + +""" +Determines how many parallel tasks "make" is expecting, as it is +not exposed via any special variables, reserves them all, runs a subprocess +with PARALLELISM environment variable set, and releases the jobs back again. + +See: + https://www.gnu.org/software/make/manual/html_node/POSIX-Jobserver.html#POSIX-Jobserver +""" + +import os +import sys + +LIB_DIR = "../tools/lib/python" +SRC_DIR = os.path.dirname(os.path.realpath(__file__)) + +sys.path.insert(0, os.path.join(SRC_DIR, LIB_DIR)) + +from jobserver import JobserverExec # pylint: disable=C0415 + + +def main(): + """Main program""" + if len(sys.argv) < 2: + name = os.path.basename(__file__) + sys.exit("usage: " + name +" command [args ...]\n" + __doc__) + + with JobserverExec() as jobserver: + return jobserver.run(sys.argv[1:]) + + +if __name__ == "__main__": + sys.exit(main()) -- cgit v1.3.1