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/time.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 rust/helpers/time.c (limited to 'rust/helpers/time.c') diff --git a/rust/helpers/time.c b/rust/helpers/time.c new file mode 100644 index 000000000..32f495970 --- /dev/null +++ b/rust/helpers/time.c @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include +#include + +__rust_helper void rust_helper_fsleep(unsigned long usecs) +{ + fsleep(usecs); +} + +__rust_helper ktime_t rust_helper_ktime_get_real(void) +{ + return ktime_get_real(); +} + +__rust_helper ktime_t rust_helper_ktime_get_boottime(void) +{ + return ktime_get_boottime(); +} + +__rust_helper ktime_t rust_helper_ktime_get_clocktai(void) +{ + return ktime_get_clocktai(); +} + +__rust_helper s64 rust_helper_ktime_to_us(const ktime_t kt) +{ + return ktime_to_us(kt); +} + +__rust_helper s64 rust_helper_ktime_to_ms(const ktime_t kt) +{ + return ktime_to_ms(kt); +} + +__rust_helper void rust_helper_udelay(unsigned long usec) +{ + udelay(usec); +} -- cgit v1.3.1