[RFC PATCH 24/86] Revert "sched: Harden PREEMPT_DYNAMIC"

From: Ankur Arora
Date: Tue Nov 07 2023 - 17:02:06 EST


This reverts commit ef72661e28c64ad610f89acc2832ec67b27ba438.

Signed-off-by: Ankur Arora <ankur.a.arora@xxxxxxxxxx>
---
arch/x86/include/asm/preempt.h | 4 ++--
include/linux/kernel.h | 2 +-
include/linux/sched.h | 2 +-
kernel/sched/core.c | 8 ++++----
4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h
index 49d2f0396be4..967879366d27 100644
--- a/arch/x86/include/asm/preempt.h
+++ b/arch/x86/include/asm/preempt.h
@@ -115,7 +115,7 @@ DECLARE_STATIC_CALL(preempt_schedule, __preempt_schedule_func);

#define __preempt_schedule() \
do { \
- __STATIC_CALL_MOD_ADDRESSABLE(preempt_schedule); \
+ __ADDRESSABLE(STATIC_CALL_KEY(preempt_schedule)); \
asm volatile ("call " STATIC_CALL_TRAMP_STR(preempt_schedule) : ASM_CALL_CONSTRAINT); \
} while (0)

@@ -128,7 +128,7 @@ DECLARE_STATIC_CALL(preempt_schedule_notrace, __preempt_schedule_notrace_func);

#define __preempt_schedule_notrace() \
do { \
- __STATIC_CALL_MOD_ADDRESSABLE(preempt_schedule_notrace); \
+ __ADDRESSABLE(STATIC_CALL_KEY(preempt_schedule_notrace)); \
asm volatile ("call " STATIC_CALL_TRAMP_STR(preempt_schedule_notrace) : ASM_CALL_CONSTRAINT); \
} while (0)

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index b9121007fd0b..5f99720d0cca 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -109,7 +109,7 @@ DECLARE_STATIC_CALL(might_resched, __cond_resched);

static __always_inline void might_resched(void)
{
- static_call_mod(might_resched)();
+ static_call(might_resched)();
}

#else
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 66f520954de5..2b1f3008c90e 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2090,7 +2090,7 @@ DECLARE_STATIC_CALL(cond_resched, __cond_resched);

static __always_inline int _cond_resched(void)
{
- return static_call_mod(cond_resched)();
+ return static_call(cond_resched)();
}

#else
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index bbd19b8ff3e9..7ea22244c540 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6893,7 +6893,7 @@ EXPORT_SYMBOL(preempt_schedule);

#ifdef CONFIG_PREEMPT_DYNAMIC
DEFINE_STATIC_CALL(preempt_schedule, __preempt_schedule_func);
-EXPORT_STATIC_CALL_TRAMP(preempt_schedule);
+EXPORT_STATIC_CALL(preempt_schedule);
#endif


@@ -6951,7 +6951,7 @@ EXPORT_SYMBOL_GPL(preempt_schedule_notrace);

#ifdef CONFIG_PREEMPT_DYNAMIC
DEFINE_STATIC_CALL(preempt_schedule_notrace, __preempt_schedule_notrace_func);
-EXPORT_STATIC_CALL_TRAMP(preempt_schedule_notrace);
+EXPORT_STATIC_CALL(preempt_schedule_notrace);
#endif

#endif /* CONFIG_PREEMPTION */
@@ -8740,10 +8740,10 @@ EXPORT_SYMBOL(__cond_resched);

#ifdef CONFIG_PREEMPT_DYNAMIC
DEFINE_STATIC_CALL_RET0(cond_resched, __cond_resched);
-EXPORT_STATIC_CALL_TRAMP(cond_resched);
+EXPORT_STATIC_CALL(cond_resched);

DEFINE_STATIC_CALL_RET0(might_resched, __cond_resched);
-EXPORT_STATIC_CALL_TRAMP(might_resched);
+EXPORT_STATIC_CALL(might_resched);
#endif

/*
--
2.31.1