The patch titled
Subject: lib/smp_processor_id: fix imbalanced instrumentation_end() call
has been added to the -mm mm-nonmm-unstable branch. Its filename is
lib-smp_processor_id-fix-imbalanced-instrumentation_end-call.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/lib-smp_processor_id-fix-imbalanced-instrumentation_end-call.patch
This patch will later appear in the mm-nonmm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Subject: lib/smp_processor_id: fix imbalanced instrumentation_end() call
Date: Wed, 22 Jun 2022 14:46:31 +0900
Currently instrumentation_end() won't be called if printk_ratelimit()
returned false.
Link: https://lkml.kernel.org/r/a636d8e0-ad32-5888-acac-671f7f553bb3@xxxxxxxxxxxxxxxxxxx
Fixes: 126f21f0e8d46e2c ("lib/smp_processor_id: Move it into noinstr section")
Signed-off-by: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Alexandre Chartre <alexandre.chartre@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/smp_processor_id.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/lib/smp_processor_id.c~lib-smp_processor_id-fix-imbalanced-instrumentation_end-call
+++ a/lib/smp_processor_id.c
@@ -47,9 +47,9 @@ unsigned int check_preemption_disabled(c
printk("caller is %pS\n", __builtin_return_address(0));
dump_stack();
- instrumentation_end();
out_enable:
+ instrumentation_end();
preempt_enable_no_resched_notrace();
out:
return this_cpu;
_
Patches currently in -mm which might be from penguin-kernel@xxxxxxxxxxxxxxxxxxx are
lib-smp_processor_id-fix-imbalanced-instrumentation_end-call.patch
