From 2b97956af60810cd382b86b9ce9aea421b889861 Mon Sep 17 00:00:00 2001 From: Nuoqi Gui Date: Fri, 4 Sep 2026 12:41:55 +0200 Subject: selftests/bpf: Test rhtab kptr cancellation semantics Resizable hash-map updates and deletions must not perform full special-field destruction in their caller context. In particular, a referenced kptr must remain attached to the allocation until the memory allocator destructor can release it safely. Add separate coverage for both affected paths. The update test stores a task kptr, replaces the ordinary value bytes with BPF_EXIST, and verifies that the kptr survived. The delete test removes an element and exchanges its kptr through the still-valid map-value pointer before the allocation is reclaimed. Both cases observe a NULL kptr when rhtab uses bpf_obj_free_fields(). They recover and release the reference after rhtab switches to cancellation semantics. Signed-off-by: Nuoqi Gui [ kkd: Split update and delete coverage and rewrote the commit log ] Signed-off-by: Kumar Kartikeya Dwivedi Link: https://lore.kernel.org/r/20260904104203.345917-5-memxor@gmail.com Signed-off-by: Alexei Starovoitov --- scripts/git.orderFile | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 scripts/git.orderFile (limited to 'scripts/git.orderFile') diff --git a/scripts/git.orderFile b/scripts/git.orderFile new file mode 100644 index 000000000..5102ba733 --- /dev/null +++ b/scripts/git.orderFile @@ -0,0 +1,42 @@ +# SPDX-License-Identifier: GPL-2.0 + +# order file for git, to produce patches which are easier to review +# by diffing the important stuff like header changes first. +# +# one-off usage: +# git diff -O scripts/git.orderFile ... +# +# add to git config: +# git config diff.orderFile scripts/git.orderFile +# + +MAINTAINERS + +# Documentation +Documentation/* +*.rst + +# git-specific +.gitignore +scripts/git.orderFile + +# build system +Kconfig* +*/Kconfig* +Kbuild* +*/Kbuild* +Makefile* +*/Makefile* +*.mak +*.mk +scripts/* + +# semantic patches +*.cocci + +# headers +*types.h +*.h + +# code +*.c -- cgit v1.3.1