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 --- rust/helpers/blk.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 rust/helpers/blk.c (limited to 'rust/helpers/blk.c') diff --git a/rust/helpers/blk.c b/rust/helpers/blk.c new file mode 100644 index 000000000..20c512e46 --- /dev/null +++ b/rust/helpers/blk.c @@ -0,0 +1,14 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include + +__rust_helper void *rust_helper_blk_mq_rq_to_pdu(struct request *rq) +{ + return blk_mq_rq_to_pdu(rq); +} + +__rust_helper struct request *rust_helper_blk_mq_rq_from_pdu(void *pdu) +{ + return blk_mq_rq_from_pdu(pdu); +} -- cgit v1.3.1