From f743a7adbd6e230d66a6206fa115b59fec2d88eb Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 22 Nov 2023 01:07:42 +0000
Subject: [PATCH] disable pwm7

---
 kernel/include/linux/sched/mm.h |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/kernel/include/linux/sched/mm.h b/kernel/include/linux/sched/mm.h
index ef54f4b..88e1a56 100644
--- a/kernel/include/linux/sched/mm.h
+++ b/kernel/include/linux/sched/mm.h
@@ -49,6 +49,17 @@
 		__mmdrop(mm);
 }
 
+#ifdef CONFIG_PREEMPT_RT_BASE
+extern void __mmdrop_delayed(struct rcu_head *rhp);
+static inline void mmdrop_delayed(struct mm_struct *mm)
+{
+	if (atomic_dec_and_test(&mm->mm_count))
+		call_rcu(&mm->delayed_drop, __mmdrop_delayed);
+}
+#else
+# define mmdrop_delayed(mm)	mmdrop(mm)
+#endif
+
 void mmdrop(struct mm_struct *mm);
 
 /*

--
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