linux-kernel - [PATCH 32/36] rust: task: Add __rust

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Message-ID: <20260111120209.6133-30-boqun.feng@gmail.com>
Date: Sun, 11 Jan 2026 20:02:05 +0800
From: Boqun Feng <boqun.feng@...il.com>
To: "Peter Zijlstra" <peterz@...radead.org>,
	"Ingo Molnar" <mingo@...nel.org>
Cc: rust-for-linux@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"Will Deacon" <will@...nel.org>,
	"Mark Rutland" <mark.rutland@....com>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"Miguel Ojeda" <ojeda@...nel.org>,
	"Gary Guo" <gary@...yguo.net>,
	"Alice Ryhl" <aliceryhl@...gle.com>,
	"Andreas Hindborg" <a.hindborg@...nel.org>,
	"Benno Lossin" <lossin@...nel.org>,
	"Danilo Krummrich" <dakr@...nel.org>,
	Boqun Feng <boqun.feng@...il.com>
Subject: [PATCH 32/36] rust: task: Add __rust_helper to helpers

From: Alice Ryhl <aliceryhl@...gle.com>

This is needed to inline these helpers into Rust code.

Reviewed-by: Boqun Feng <boqun.feng@...il.com>
Reviewed-by: Gary Guo <gary@...yguo.net>
Signed-off-by: Alice Ryhl <aliceryhl@...gle.com>
Signed-off-by: Boqun Feng <boqun.feng@...il.com>
Link: https://patch.msgid.link/20260105-define-rust-helper-v2-21-51da5f454a67@google.com
---
 rust/helpers/signal.c |  2 +-
 rust/helpers/task.c   | 24 ++++++++++++------------
 2 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/rust/helpers/signal.c b/rust/helpers/signal.c
index 1a6bbe9438e2..85111186cf3d 100644
--- a/rust/helpers/signal.c
+++ b/rust/helpers/signal.c
@@ -2,7 +2,7 @@
 
 #include <linux/sched/signal.h>
 
-int rust_helper_signal_pending(struct task_struct *t)
+__rust_helper int rust_helper_signal_pending(struct task_struct *t)
 {
 	return signal_pending(t);
 }
diff --git a/rust/helpers/task.c b/rust/helpers/task.c
index 2c85bbc2727e..c0e1a06ede78 100644
--- a/rust/helpers/task.c
+++ b/rust/helpers/task.c
@@ -3,60 +3,60 @@
 #include <linux/kernel.h>
 #include <linux/sched/task.h>
 
-void rust_helper_might_resched(void)
+__rust_helper void rust_helper_might_resched(void)
 {
 	might_resched();
 }
 
-struct task_struct *rust_helper_get_current(void)
+__rust_helper struct task_struct *rust_helper_get_current(void)
 {
 	return current;
 }
 
-void rust_helper_get_task_struct(struct task_struct *t)
+__rust_helper void rust_helper_get_task_struct(struct task_struct *t)
 {
 	get_task_struct(t);
 }
 
-void rust_helper_put_task_struct(struct task_struct *t)
+__rust_helper void rust_helper_put_task_struct(struct task_struct *t)
 {
 	put_task_struct(t);
 }
 
-kuid_t rust_helper_task_uid(struct task_struct *task)
+__rust_helper kuid_t rust_helper_task_uid(struct task_struct *task)
 {
 	return task_uid(task);
 }
 
-kuid_t rust_helper_task_euid(struct task_struct *task)
+__rust_helper kuid_t rust_helper_task_euid(struct task_struct *task)
 {
 	return task_euid(task);
 }
 
 #ifndef CONFIG_USER_NS
-uid_t rust_helper_from_kuid(struct user_namespace *to, kuid_t uid)
+__rust_helper uid_t rust_helper_from_kuid(struct user_namespace *to, kuid_t uid)
 {
 	return from_kuid(to, uid);
 }
 #endif /* CONFIG_USER_NS */
 
-bool rust_helper_uid_eq(kuid_t left, kuid_t right)
+__rust_helper bool rust_helper_uid_eq(kuid_t left, kuid_t right)
 {
 	return uid_eq(left, right);
 }
 
-kuid_t rust_helper_current_euid(void)
+__rust_helper kuid_t rust_helper_current_euid(void)
 {
 	return current_euid();
 }
 
-struct user_namespace *rust_helper_current_user_ns(void)
+__rust_helper struct user_namespace *rust_helper_current_user_ns(void)
 {
 	return current_user_ns();
 }
 
-pid_t rust_helper_task_tgid_nr_ns(struct task_struct *tsk,
-				  struct pid_namespace *ns)
+__rust_helper pid_t rust_helper_task_tgid_nr_ns(struct task_struct *tsk,
+						struct pid_namespace *ns)
 {
 	return task_tgid_nr_ns(tsk, ns);
 }
-- 
2.51.0