From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Michael Jeanson <mjeanson@efficios.com>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Peter Zijlstra <peterz@infradead.org>,
"Paul E. McKenney" <paulmck@kernel.org>,
Boqun Feng <boqun.feng@gmail.com>, Wei Liu <wei.liu@kernel.org>,
Jens Axboe <axboe@kernel.dk>
Subject: [patch 02/11] rseq: Condense the inline stubs
Date: Wed, 13 Aug 2025 18:29:17 +0200 (CEST) [thread overview]
Message-ID: <20250813162823.909295085@linutronix.de> (raw)
In-Reply-To: <20250813155941.014821755@linutronix.de>
Scrolling over tons of pointless
{
}
lines to find the actual code is annoying at best.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
---
include/linux/rseq.h | 47 ++++++++++++-----------------------------------
1 file changed, 12 insertions(+), 35 deletions(-)
--- a/include/linux/rseq.h
+++ b/include/linux/rseq.h
@@ -101,44 +101,21 @@ static inline void rseq_execve(struct ta
t->rseq_event_mask = 0;
}
-#else
-
-static inline void rseq_set_notify_resume(struct task_struct *t)
-{
-}
-static inline void rseq_handle_notify_resume(struct ksignal *ksig,
- struct pt_regs *regs)
-{
-}
-static inline void rseq_signal_deliver(struct ksignal *ksig,
- struct pt_regs *regs)
-{
-}
-static inline void rseq_preempt(struct task_struct *t)
-{
-}
-static inline void rseq_migrate(struct task_struct *t)
-{
-}
-static inline void rseq_fork(struct task_struct *t, unsigned long clone_flags)
-{
-}
-static inline void rseq_execve(struct task_struct *t)
-{
-}
+#else /* CONFIG_RSEQ */
+static inline void rseq_set_notify_resume(struct task_struct *t) { }
+static inline void rseq_handle_notify_resume(struct ksignal *ksig, struct pt_regs *regs) { }
+static inline void rseq_signal_deliver(struct ksignal *ksig, struct pt_regs *regs) { }
+static inline void rseq_preempt(struct task_struct *t) { }
+static inline void rseq_migrate(struct task_struct *t) { }
+static inline void rseq_fork(struct task_struct *t, unsigned long clone_flags) { }
+static inline void rseq_execve(struct task_struct *t) { }
static inline void rseq_exit_to_user_mode(void) { }
-#endif
+#endif /* !CONFIG_RSEQ */
#ifdef CONFIG_DEBUG_RSEQ
-
void rseq_syscall(struct pt_regs *regs);
-
-#else
-
-static inline void rseq_syscall(struct pt_regs *regs)
-{
-}
-
-#endif
+#else /* CONFIG_DEBUG_RSEQ */
+static inline void rseq_syscall(struct pt_regs *regs) { }
+#endif /* !CONFIG_DEBUG_RSEQ */
#endif /* _LINUX_RSEQ_H */
next prev parent reply other threads:[~2025-08-13 16:29 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-13 16:29 [patch 00/11] rseq: Optimize exit to user space Thomas Gleixner
2025-08-13 16:29 ` [patch 01/11] rseq: Avoid pointless evaluation in __rseq_notify_resume() Thomas Gleixner
2025-08-20 14:23 ` Mathieu Desnoyers
2025-08-13 16:29 ` Thomas Gleixner [this message]
2025-08-20 14:24 ` [patch 02/11] rseq: Condense the inline stubs Mathieu Desnoyers
2025-08-13 16:29 ` [patch 03/11] rseq: Rename rseq_syscall() to rseq_debug_syscall_exit() Thomas Gleixner
2025-08-20 14:25 ` Mathieu Desnoyers
2025-08-13 16:29 ` [patch 04/11] rseq: Replace the pointless event mask bit fiddling Thomas Gleixner
2025-08-13 16:29 ` [patch 05/11] rseq: Optimize the signal delivery path Thomas Gleixner
2025-08-13 16:29 ` [patch 06/11] rseq: Optimize exit to user space further Thomas Gleixner
2025-08-13 16:29 ` [patch 07/11] entry: Cleanup header Thomas Gleixner
2025-08-13 17:09 ` Giorgi Tchankvetadze
2025-08-13 21:30 ` Thomas Gleixner
2025-08-13 16:29 ` [patch 08/11] entry: Distinguish between syscall and interrupt exit Thomas Gleixner
2025-08-13 16:29 ` [patch 09/11] entry: Provide exit_to_user_notify_resume() Thomas Gleixner
2025-08-13 16:29 ` [patch 10/11] rseq: Skip fixup when returning from a syscall Thomas Gleixner
2025-08-14 8:54 ` Peter Zijlstra
2025-08-14 13:24 ` Thomas Gleixner
2025-08-13 16:29 ` [patch 11/11] rseq: Convert to masked user access where applicable Thomas Gleixner
2025-08-13 17:45 ` [patch 00/11] rseq: Optimize exit to user space Jens Axboe
2025-08-13 21:32 ` Thomas Gleixner
2025-08-13 21:36 ` Jens Axboe
2025-08-13 22:08 ` Thomas Gleixner
2025-08-17 21:23 ` Thomas Gleixner
2025-08-18 14:00 ` BUG: rseq selftests and librseq vs. glibc fail Thomas Gleixner
2025-08-18 14:15 ` Florian Weimer
2025-08-18 17:13 ` Thomas Gleixner
2025-08-18 19:33 ` Florian Weimer
2025-08-18 19:46 ` Sean Christopherson
2025-08-18 19:55 ` Florian Weimer
2025-08-18 20:27 ` Sean Christopherson
2025-08-18 23:54 ` Thomas Gleixner
2025-08-19 0:28 ` Sean Christopherson
2025-08-19 6:18 ` Florian Weimer
2025-08-29 18:44 ` Prakash Sangappa
2025-08-29 18:50 ` Mathieu Desnoyers
2025-09-01 19:30 ` Prakash Sangappa
2025-08-18 17:38 ` [patch 00/11] rseq: Optimize exit to user space Michael Jeanson
2025-08-18 20:21 ` Thomas Gleixner
2025-08-18 21:29 ` Michael Jeanson
2025-08-18 23:43 ` Thomas Gleixner
2025-08-20 14:27 ` Mathieu Desnoyers
2025-08-20 14:10 ` Mathieu Desnoyers
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