f2c5092190
PREEMPT_RT preempts softirqs and the current implementation avoids do_softirq_own_stack() and only uses __do_softirq(). Disable the unused softirqs stacks on PREEMPT_RT to save some memory and ensure that do_softirq_own_stack() is not used bwcause it is not expected. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
14 lines
361 B
C
14 lines
361 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef __ASM_S390_SOFTIRQ_STACK_H
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#define __ASM_S390_SOFTIRQ_STACK_H
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#include <asm/lowcore.h>
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#include <asm/stacktrace.h>
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#ifndef CONFIG_PREEMPT_RT
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static inline void do_softirq_own_stack(void)
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{
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call_on_stack(0, S390_lowcore.async_stack, void, __do_softirq);
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}
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#endif
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#endif /* __ASM_S390_SOFTIRQ_STACK_H */
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