From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Michael Jeanson <mjeanson@efficios.com>,
Peter Zijlstra <peterz@infradead.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
"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 03/11] rseq: Rename rseq_syscall() to rseq_debug_syscall_exit()
Date: Wed, 13 Aug 2025 18:29:19 +0200 (CEST) [thread overview]
Message-ID: <20250813162823.972744605@linutronix.de> (raw)
In-Reply-To: 20250813155941.014821755@linutronix.de
rseq_syscall() is a debug function, which is invoked before the syscall
exit work is handled. Name it so it's clear what it does.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
---
include/linux/entry-common.h | 2 +-
include/linux/rseq.h | 4 ++--
kernel/rseq.c | 5 +++--
3 files changed, 6 insertions(+), 5 deletions(-)
--- a/include/linux/entry-common.h
+++ b/include/linux/entry-common.h
@@ -162,7 +162,7 @@ static __always_inline void syscall_exit
local_irq_enable();
}
- rseq_syscall(regs);
+ rseq_debug_syscall_exit(regs);
/*
* Do one-time syscall specific work. If these work items are
--- a/include/linux/rseq.h
+++ b/include/linux/rseq.h
@@ -113,9 +113,9 @@ static inline void rseq_exit_to_user_mod
#endif /* !CONFIG_RSEQ */
#ifdef CONFIG_DEBUG_RSEQ
-void rseq_syscall(struct pt_regs *regs);
+void rseq_debug_syscall_exit(struct pt_regs *regs);
#else /* CONFIG_DEBUG_RSEQ */
-static inline void rseq_syscall(struct pt_regs *regs) { }
+static inline void rseq_debug_syscall_exit(struct pt_regs *regs) { }
#endif /* !CONFIG_DEBUG_RSEQ */
#endif /* _LINUX_RSEQ_H */
--- a/kernel/rseq.c
+++ b/kernel/rseq.c
@@ -427,7 +427,8 @@ void __rseq_handle_notify_resume(struct
* this invocation was invoked inside a critical section, then it
* will either end up in this code again or a possible violation of
* a syscall inside a critical region can only be detected by the
- * debug code in rseq_syscall() in a debug enabled kernel.
+ * debug code in rseq_debug_syscall_exit() in a debug enabled
+ * kernel.
*/
if (regs) {
/*
@@ -476,7 +477,7 @@ void __rseq_handle_notify_resume(struct
* Terminate the process if a syscall is issued within a restartable
* sequence.
*/
-void rseq_syscall(struct pt_regs *regs)
+void rseq_debug_syscall_exit(struct pt_regs *regs)
{
unsigned long ip = instruction_pointer(regs);
struct task_struct *t = current;
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 ` [patch 02/11] rseq: Condense the inline stubs Thomas Gleixner
2025-08-20 14:24 ` Mathieu Desnoyers
2025-08-13 16:29 ` Thomas Gleixner [this message]
2025-08-20 14:25 ` [patch 03/11] rseq: Rename rseq_syscall() to rseq_debug_syscall_exit() 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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