mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
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;


  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20250813162823.972744605@linutronix.de \
    --to=tglx@linutronix.de \
    --cc=axboe@kernel.dk \
    --cc=boqun.feng@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mathieu.desnoyers@efficios.com \
    --cc=mjeanson@efficios.com \
    --cc=paulmck@kernel.org \
    --cc=peterz@infradead.org \
    --cc=wei.liu@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®