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authorMathieu Desnoyers <[email protected]>2019-03-05 14:47:53 -0500
committerIngo Molnar <[email protected]>2019-04-19 12:39:31 +0200
commitbff9504bfc9c5c6610b42d47f689f350fd969eb8 (patch)
tree73722cdd001252af91dfa80cbcb79da14b629971
parente53f31bffe1d552f496b674cd1733658a268e177 (diff)
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 <[email protected]> Acked-by: Peter Zijlstra (Intel) <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Ben Maurer <[email protected]> Cc: Boqun Feng <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Chris Lameter <[email protected]> Cc: Dave Watson <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Joel Fernandes <[email protected]> Cc: Josh Triplett <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Michael Kerrisk <[email protected]> Cc: Paul E. McKenney <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Russell King <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Will Deacon <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
-rw-r--r--arch/arm/kernel/signal.c3
-rw-r--r--arch/x86/kernel/signal.c5
-rw-r--r--kernel/rseq.c3
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.