Merge tag 'for-linus-2020-03-07' of gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux (fa883d6a) · Commits · 戴 / test

Pull thread fixes from Christian Brauner: "Here are a few hopefully uncontroversial fixes: - Use RCU_INIT_POINTER() when initializing rcu protected members in task_struct to fix sparse warnings. - Add pidfd_fdinfo_test binary to .gitignore file" * tag 'for-linus-2020-03-07' of gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux: selftests: pidfd: Add pidfd_fdinfo_test in .gitignore exit: Fix Sparse errors and warnings fork: Use RCU_INIT_POINTER() instead of rcu_access_pointer()

kernel/exit.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -619,8 +619,8 @@ static void forget_original_parent(struct task_struct *father,
		reaper = find_new_reaper(father, reaper);
		list_for_each_entry(p, &father->children, sibling) {
		for_each_thread(p, t) {
		t->real_parent = reaper;
		BUG_ON((!t->ptrace) != (t->parent == father));
		RCU_INIT_POINTER(t->real_parent, reaper);
		BUG_ON((!t->ptrace) != (rcu_access_pointer(t->parent) == father));
		if (likely(!t->ptrace))
		t->parent = t->real_parent;
		if (t->pdeath_signal)

kernel/fork.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1508,7 +1508,7 @@ static int copy_sighand(unsigned long clone_flags, struct task_struct *tsk)
		return 0;
		}
		sig = kmem_cache_alloc(sighand_cachep, GFP_KERNEL);
		rcu_assign_pointer(tsk->sighand, sig);
		RCU_INIT_POINTER(tsk->sighand, sig);
		if (!sig)
		return -ENOMEM;

tools/testing/selftests/pidfd/.gitignore

+1 −0

Original line number	Diff line number	Diff line
		@@ -2,4 +2,5 @@ pidfd_open_test
		pidfd_poll_test
		pidfd_test
		pidfd_wait
		pidfd_fdinfo_test
		pidfd_getfd_test

Admin message