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From: Steven Rostedt <rostedt@goodmis.org>
To: Christian Brauner <brauner@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-modules@vger.kernel.org,
	linux-nfs@vger.kernel.org, bpf@vger.kernel.org,
	kunit-dev@googlegroups.com, linux-doc@vger.kernel.org,
	linux-trace-kernel@vger.kernel.org, netfs@lists.linux.dev,
	io-uring@vger.kernel.org, audit@vger.kernel.org,
	rcu@vger.kernel.org, kvm@vger.kernel.org,
	virtualization@lists.linux.dev, netdev@vger.kernel.org,
	linux-mm@kvack.org, linux-security-module@vger.kernel.org,
	Christian Loehle <christian.loehle@arm.com>,
	linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v2 2/2] tree-wide: rename do_exit() to task_exit()
Date: Tue, 10 Mar 2026 20:02:17 -0400	[thread overview]
Message-ID: <20260310200217.451cf37e@gandalf.local.home> (raw)
In-Reply-To: <20260310-work-kernel-exit-v2-2-30711759d87b@kernel.org>

On Tue, 10 Mar 2026 15:56:10 +0100
Christian Brauner <brauner@kernel.org> wrote:

> diff --git a/tools/testing/selftests/bpf/progs/tracing_failure.c b/tools/testing/selftests/bpf/progs/tracing_failure.c
> index 65e485c4468c..5144f4cc5787 100644
> --- a/tools/testing/selftests/bpf/progs/tracing_failure.c
> +++ b/tools/testing/selftests/bpf/progs/tracing_failure.c
> @@ -25,7 +25,7 @@ int BPF_PROG(tracing_deny)
>  	return 0;
>  }
>  
> -SEC("?fexit/do_exit")
> +SEC("?fexit/task_exit")
>  int BPF_PROG(fexit_noreturns)
>  {
>  	return 0;
> diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc
> index fee479295e2f..7e00d8ecd110 100644
> --- a/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc
> +++ b/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc
> @@ -82,7 +82,7 @@ check_error 'f vfs_read arg1=^'			# NO_ARG_BODY
>  # multiprobe errors
>  if grep -q "Create/append/" README && grep -q "imm-value" README; then
>  echo "f:fprobes/testevent $FUNCTION_FORK" > dynamic_events
> -check_error '^f:fprobes/testevent do_exit%return'	# DIFF_PROBE_TYPE
> +check_error '^f:fprobes/testevent task_exit%return'	# DIFF_PROBE_TYPE
>  
>  # Explicitly use printf "%s" to not interpret \1
>  printf "%s" "f:fprobes/testevent $FUNCTION_FORK abcd=\\1" > dynamic_events
> diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_multiprobe.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_multiprobe.tc
> index f0d5b7777ed7..a95e3824690a 100644
> --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_multiprobe.tc
> +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_multiprobe.tc
> @@ -5,7 +5,7 @@
>  
>  # Choose 2 symbols for target
>  SYM1=$FUNCTION_FORK
> -SYM2=do_exit
> +SYM2=task_exit
>  EVENT_NAME=kprobes/testevent
>  
>  DEF1="p:$EVENT_NAME $SYM1"
> diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc
> index 8f1c58f0c239..b55ea3c05cfa 100644
> --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc
> +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc
> @@ -87,7 +87,7 @@ esac
>  # multiprobe errors
>  if grep -q "Create/append/" README && grep -q "imm-value" README; then
>  echo "p:kprobes/testevent $FUNCTION_FORK" > kprobe_events
> -check_error '^r:kprobes/testevent do_exit'	# DIFF_PROBE_TYPE
> +check_error '^r:kprobes/testevent task_exit'	# DIFF_PROBE_TYPE
>  
>  # Explicitly use printf "%s" to not interpret \1
>  printf "%s" "p:kprobes/testevent $FUNCTION_FORK abcd=\\1" > kprobe_events

These tests need to pass on old kernels too. So we can't just do a
"s/do_exit/task_exit/" conversion. It needs to test for task_exit first,
and if not found, fallback to do_exit.

See how we handled the _do_fork() > kernel_clone() rename:

  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/testing/selftests/ftrace/test.d/functions#n182

-- Steve

      parent reply	other threads:[~2026-03-11  0:02 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-10 14:56 [PATCH v2 0/2] kthread, exit: clean up kernel thread exit paths Christian Brauner
2026-03-10 14:56 ` [PATCH v2 1/2] kthread: remove kthread_exit() Christian Brauner
2026-03-10 22:26   ` Frederic Weisbecker
2026-03-10 14:56 ` [PATCH v2 2/2] tree-wide: rename do_exit() to task_exit() Christian Brauner
2026-03-10 22:30   ` Frederic Weisbecker
2026-03-11  0:02   ` Steven Rostedt [this message]

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