From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: linux-kernel@vger.kernel.org
Cc: tglx@linutronix.de, Heiko Carstens <heiko.carstens@de.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
linux-s390@vger.kernel.org,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Subject: [PATCH 17/34] s390: Use CONFIG_PREEMPTION
Date: Tue, 15 Oct 2019 21:18:04 +0200 [thread overview]
Message-ID: <20191015191821.11479-18-bigeasy@linutronix.de> (raw)
In-Reply-To: <20191015191821.11479-1-bigeasy@linutronix.de>
From: Thomas Gleixner <tglx@linutronix.de>
CONFIG_PREEMPTION is selected by CONFIG_PREEMPT and by CONFIG_PREEMPT_RT.
Both PREEMPT and PREEMPT_RT require the same functionality which today
depends on CONFIG_PREEMPT.
Switch the preemption and entry code over to use CONFIG_PREEMPTION. Add
PREEMPT_RT output to die().
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: linux-s390@vger.kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[bigeasy: +Kconfig, dumpstack.c]
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
arch/s390/Kconfig | 2 +-
arch/s390/include/asm/preempt.h | 4 ++--
arch/s390/kernel/dumpstack.c | 2 ++
arch/s390/kernel/entry.S | 2 +-
4 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 43a81d0ad5074..33d968175038e 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -30,7 +30,7 @@ config GENERIC_BUG_RELATIVE_POINTERS
def_bool y
config GENERIC_LOCKBREAK
- def_bool y if PREEMPT
+ def_bool y if PREEMPTTION
config PGSTE
def_bool y if KVM
diff --git a/arch/s390/include/asm/preempt.h b/arch/s390/include/asm/preempt.h
index b5ea9e14c017a..6ede29907fbf7 100644
--- a/arch/s390/include/asm/preempt.h
+++ b/arch/s390/include/asm/preempt.h
@@ -130,11 +130,11 @@ static inline bool should_resched(int preempt_offset)
#endif /* CONFIG_HAVE_MARCH_Z196_FEATURES */
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
extern asmlinkage void preempt_schedule(void);
#define __preempt_schedule() preempt_schedule()
extern asmlinkage void preempt_schedule_notrace(void);
#define __preempt_schedule_notrace() preempt_schedule_notrace()
-#endif /* CONFIG_PREEMPT */
+#endif /* CONFIG_PREEMPTION */
#endif /* __ASM_PREEMPT_H */
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index 34bdc60c0b11d..8e38447be4653 100644
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -194,6 +194,8 @@ void die(struct pt_regs *regs, const char *str)
regs->int_code >> 17, ++die_counter);
#ifdef CONFIG_PREEMPT
pr_cont("PREEMPT ");
+#elif defined(CONFIG_PREEMPT_RT)
+ pr_cont("PREEMPT_RT ");
#endif
pr_cont("SMP ");
if (debug_pagealloc_enabled())
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 270d1d145761b..9205add8481d5 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -790,7 +790,7 @@ ENTRY(io_int_handler)
.Lio_work:
tm __PT_PSW+1(%r11),0x01 # returning to user ?
jo .Lio_work_user # yes -> do resched & signal
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
# check for preemptive scheduling
icm %r0,15,__LC_PREEMPT_COUNT
jnz .Lio_restore # preemption is disabled
--
2.23.0
next prev parent reply other threads:[~2019-10-15 19:20 UTC|newest]
Thread overview: 97+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-15 19:17 [PATCH 00/34] Treewide: Use CONFIG_PREEMPTION Sebastian Andrzej Siewior
2019-10-15 19:17 ` [PATCH 01/34] ARM: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 02/34] arm64: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 03/34] powerpc: " Sebastian Andrzej Siewior
2019-10-16 4:57 ` Christophe Leroy
2019-10-16 7:48 ` Sebastian Andrzej Siewior
2019-10-16 9:33 ` Michael Ellerman
2019-10-16 9:35 ` Sebastian Andrzej Siewior
2019-10-24 13:59 ` [PATCH 03/34 v2] " Sebastian Andrzej Siewior
2019-10-24 16:04 ` [PATCH 03/34 v3] " Sebastian Andrzej Siewior
2019-11-12 12:38 ` Michael Ellerman
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 04/34] ARC: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 05/34] c6x: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 06/34] csky: " Sebastian Andrzej Siewior
2019-10-15 23:29 ` Guo Ren
2019-10-16 7:39 ` Sebastian Andrzej Siewior
2019-10-16 23:31 ` Guo Ren
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 07/34] h8300: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 08/34] hexagon: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 09/34] ia64: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 10/34] m68k/coldfire: " Sebastian Andrzej Siewior
2019-10-16 0:50 ` Greg Ungerer
2019-10-16 7:55 ` Sebastian Andrzej Siewior
2019-10-16 12:14 ` Greg Ungerer
2019-10-15 19:17 ` [PATCH 11/34] microblaze: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:17 ` [PATCH 12/34] MIPS: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 13/34] nds32: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 14/34] nios2: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 15/34] parisc: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 16/34] riscv: " Sebastian Andrzej Siewior
2019-10-15 20:26 ` Paul Walmsley
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` Sebastian Andrzej Siewior [this message]
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, s390: " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 18/34] sh: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 19/34] sparc: " Sebastian Andrzej Siewior
2019-10-15 20:34 ` David Miller
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 20/34] xtensa: " Sebastian Andrzej Siewior
2019-10-15 19:43 ` Max Filippov
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 21/34] net: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, net: Use CONFIG_PREEMPTION.patch tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 22/34] xen: Use CONFIG_PREEMPTION Sebastian Andrzej Siewior
2019-10-16 5:10 ` Jürgen Groß
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 23/34] fs: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 24/34] btrfs: " Sebastian Andrzej Siewior
2019-10-15 20:16 ` David Sterba
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 25/34] mm: " Sebastian Andrzej Siewior
2019-10-16 14:38 ` Christopher Lameter
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Thomas Gleixner
2019-10-15 19:18 ` [PATCH 26/34] Documentation/RCU: Use CONFIG_PREEMPTION where appropriate Sebastian Andrzej Siewior
2019-10-16 4:13 ` Paul E. McKenney
2019-10-16 7:31 ` Sebastian Andrzej Siewior
2019-10-17 3:06 ` Paul E. McKenney
2019-10-15 19:18 ` [PATCH 27/34] rcu: " Sebastian Andrzej Siewior
2019-10-16 4:14 ` Paul E. McKenney
2019-10-15 19:18 ` [PATCH 28/34] drm/i810: Refer to `PREEMPTION' in comment Sebastian Andrzej Siewior
2019-10-16 19:58 ` Daniel Vetter
2019-10-15 19:18 ` [PATCH 29/34] backlight/jornada720: Use CONFIG_PREEMPTION Sebastian Andrzej Siewior
2019-10-17 11:37 ` Daniel Thompson
2019-10-17 13:23 ` Lee Jones
2019-10-17 13:28 ` Sebastian Andrzej Siewior
2019-10-18 7:38 ` Lee Jones
2019-10-18 7:40 ` Lee Jones
2019-10-15 19:18 ` [PATCH 30/34] media: cec-gpio: " Sebastian Andrzej Siewior
2019-10-15 19:53 ` Hans Verkuil
2019-10-16 11:51 ` Hans Verkuil
2019-10-16 12:02 ` Sebastian Andrzej Siewior
2019-10-16 12:24 ` Hans Verkuil
2019-10-15 19:18 ` [PATCH 31/34] locking: " Sebastian Andrzej Siewior
2019-10-16 8:18 ` Peter Zijlstra
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Sebastian Andrzej Siewior
2019-10-15 19:18 ` [PATCH 32/34] lib: " Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/core: " tip-bot2 for Sebastian Andrzej Siewior
2019-10-15 19:18 ` [PATCH 33/34] tracing: " Sebastian Andrzej Siewior
2019-10-15 19:24 ` Steven Rostedt
2019-10-15 19:18 ` [PATCH 34/34] workqueue: Use PREEMPTION Sebastian Andrzej Siewior
2019-12-08 14:58 ` [tip: sched/urgent] sched/rt, " tip-bot2 for Sebastian Andrzej Siewior
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