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From: Thomas Gleixner <tglx@linutronix.de>
Subject: sched: Remove preempt_offset argument from __might_sleep()
Date: Thu, 23 Sep 2021 18:54:38 +0200
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.15/older/patches-5.15.3-rt21.tar.xz
All callers hand in 0 and never will hand in anything else.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lore.kernel.org/r/20210923165358.054321586@linutronix.de
---
include/linux/kernel.h | 7 +++----
kernel/sched/core.c | 4 ++--
mm/memory.c | 2 +-
3 files changed, 6 insertions(+), 7 deletions(-)
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -112,7 +112,7 @@ static __always_inline void might_resche
#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 *f
* 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 *f
#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)
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -9475,7 +9475,7 @@ static inline int preempt_count_equals(i
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
(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);
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -5256,7 +5256,7 @@ void __might_fault(const char *file, int
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(¤t->mm->mmap_lock);
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