From 42a387566c567603bafa1ec0c5b71c35cba83e86 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 23 Sep 2021 18:54:38 +0200
Subject: [PATCH] sched: Remove preempt_offset argument from __might_sleep()
Git-commit: 42a387566c567603bafa1ec0c5b71c35cba83e86
Patch-mainline: v5.16-rc1
References: bsc#1190137 bsc#1189998

All callers hand in 0 and never will hand in anything else.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210923165358.054321586@linutronix.de
Signed-off-by: Davidlohr Bueso <dbueso@suse.de> 

---
 include/linux/kernel.h | 7 +++----
 kernel/sched/core.c    | 4 ++--
 mm/memory.c            | 2 +-
 3 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 5e4ae54da73e..f95ee786e4ef 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -112,7 +112,7 @@ static __always_inline void might_resched(void)
 
 #ifdef CONFIG_DEBUG_ATOMIC_SLEEP
 extern void __might_resched(const char *file, int line, int preempt_offset);
-extern void __might_sleep(const char *file, int line, int preempt_offset);
+extern void __might_sleep(const char *file, int line);
 extern void __cant_sleep(const char *file, int line, int preempt_offset);
 extern void __cant_migrate(const char *file, int line);
 
@@ -129,7 +129,7 @@ extern void __cant_migrate(const char *file, int line);
  * supposed to.
  */
 # define might_sleep() \
-	do { __might_sleep(__FILE__, __LINE__, 0); might_resched(); } while (0)
+	do { __might_sleep(__FILE__, __LINE__); might_resched(); } while (0)
 /**
  * cant_sleep - annotation for functions that cannot sleep
  *
@@ -170,8 +170,7 @@ extern void __cant_migrate(const char *file, int line);
 #else
   static inline void __might_resched(const char *file, int line,
 				     int preempt_offset) { }
-  static inline void __might_sleep(const char *file, int line,
-				   int preempt_offset) { }
+static inline void __might_sleep(const char *file, int line) { }
 # define might_sleep() do { might_resched(); } while (0)
 # define cant_sleep() do { } while (0)
 # define cant_migrate()		do { } while (0)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index c3943aa2f60c..2d790df62ec9 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -9475,7 +9475,7 @@ static inline int preempt_count_equals(int preempt_offset)
 	return (nested == preempt_offset);
 }
 
-void __might_sleep(const char *file, int line, int preempt_offset)
+void __might_sleep(const char *file, int line)
 {
 	unsigned int state = get_current_state();
 	/*
@@ -9489,7 +9489,7 @@ void __might_sleep(const char *file, int line, int preempt_offset)
 			(void *)current->task_state_change,
 			(void *)current->task_state_change);
 
-	__might_resched(file, line, preempt_offset);
+	__might_resched(file, line, 0);
 }
 EXPORT_SYMBOL(__might_sleep);
 
diff --git a/mm/memory.c b/mm/memory.c
index 25fc46e87214..1cd1792c00f2 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -5255,7 +5255,7 @@ void __might_fault(const char *file, int line)
 		return;
 	if (pagefault_disabled())
 		return;
-	__might_sleep(file, line, 0);
+	__might_sleep(file, line);
 #if defined(CONFIG_DEBUG_ATOMIC_SLEEP)
 	if (current->mm)
 		might_lock_read(&current->mm->mmap_lock);
-- 
2.26.2