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 --- tools/testing/memblock/internal.h | 54 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 tools/testing/memblock/internal.h (limited to 'tools/testing/memblock/internal.h') diff --git a/tools/testing/memblock/internal.h b/tools/testing/memblock/internal.h new file mode 100644 index 000000000..f1974e009 --- /dev/null +++ b/tools/testing/memblock/internal.h @@ -0,0 +1,54 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef _MM_INTERNAL_H +#define _MM_INTERNAL_H + +/* + * Enable memblock_dbg() messages + */ +#ifdef MEMBLOCK_DEBUG +static int memblock_debug = 1; +#endif + +#define pr_warn_ratelimited(fmt, ...) printf(fmt, ##__VA_ARGS__) + +#define K(x) ((x) << (PAGE_SHIFT-10)) + +bool mirrored_kernelcore = false; + +struct page {}; +static inline void *page_address(struct page *page) +{ + BUG(); + return page; +} + +static inline struct page *virt_to_page(void *virt) +{ + BUG(); + return virt; +} + +#define for_each_valid_pfn(pfn, start_pfn, end_pfn) \ + for ((pfn) = (start_pfn); (pfn) < (end_pfn); (pfn)++) + +static inline void *kasan_reset_tag(const void *addr) +{ + return (void *)addr; +} + +static inline bool __is_kernel(unsigned long addr) +{ + return false; +} + +#define for_each_valid_pfn(pfn, start_pfn, end_pfn) \ + for ((pfn) = (start_pfn); (pfn) < (end_pfn); (pfn)++) + +#define __SetPageReserved(p) ((void)(p)) + +static inline bool kho_scratch_overlap(phys_addr_t phys, size_t size) +{ + return false; +} + +#endif -- cgit v1.3.1