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| author | Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | 2019-03-05 14:47:53 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-04-19 12:39:31 +0200 |
| commit | bff9504bfc9c5c6610b42d47f689f350fd969eb8 (patch) | |
| tree | 73722cdd001252af91dfa80cbcb79da14b629971 | |
| parent | e53f31bffe1d552f496b674cd1733658a268e177 (diff) | |
| download | lwn-bff9504bfc9c5c6610b42d47f689f350fd969eb8.tar.gz lwn-bff9504bfc9c5c6610b42d47f689f350fd969eb8.zip | |
rseq: Clean up comments by reflecting removal of event counter
The "event counter" was removed from rseq before it was merged upstream.
However, a few comments in the source code still refer to it. Adapt the
comments to match reality.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Ben Maurer <bmaurer@fb.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Lameter <cl@linux.com>
Cc: Dave Watson <davejwatson@fb.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-api@vger.kernel.org
Link: http://lkml.kernel.org/r/20190305194755.2602-2-mathieu.desnoyers@efficios.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/arm/kernel/signal.c | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/signal.c | 5 | ||||
| -rw-r--r-- | kernel/rseq.c | 3 |
3 files changed, 3 insertions, 8 deletions
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 76bb8de6bf6b..be5edfdde558 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -549,8 +549,7 @@ static void handle_signal(struct ksignal *ksig, struct pt_regs *regs) int ret; /* - * Increment event counter and perform fixup for the pre-signal - * frame. + * Perform fixup for the pre-signal frame. */ rseq_signal_deliver(ksig, regs); diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c index 08dfd4c1a4f9..22c233b509da 100644 --- a/arch/x86/kernel/signal.c +++ b/arch/x86/kernel/signal.c @@ -688,10 +688,7 @@ setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs) sigset_t *set = sigmask_to_save(); compat_sigset_t *cset = (compat_sigset_t *) set; - /* - * Increment event counter and perform fixup for the pre-signal - * frame. - */ + /* Perform fixup for the pre-signal frame. */ rseq_signal_deliver(ksig, regs); /* Set up the stack frame */ diff --git a/kernel/rseq.c b/kernel/rseq.c index 25e9a7b60eba..849afe749131 100644 --- a/kernel/rseq.c +++ b/kernel/rseq.c @@ -254,8 +254,7 @@ static int rseq_ip_fixup(struct pt_regs *regs) * - signal delivery, * and return to user-space. * - * This is how we can ensure that the entire rseq critical section, - * consisting of both the C part and the assembly instruction sequence, + * This is how we can ensure that the entire rseq critical section * will issue the commit instruction only if executed atomically with * respect to other threads scheduled on the same CPU, and with respect * to signal handlers. |