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x86/softirq: Move softirq pending next to current task 

Another hot variable which is strict per CPU and benefits from
being in the same cache line.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220915111145.702133710@infradead.org
This commit is contained in:
Thomas Gleixner 2022-09-15 13:11:06 +02:00 committed by Peter Zijlstra
parent d7b6d709a7
commit 7fcecafebe
2 changed files with 3 additions and 1 deletions
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1
arch/x86/include/asm/current.h
View File

@ -19,6 +19,7 @@ struct pcpu_hot {
int cpu_number;
unsigned long top_of_stack;
void *hardirq_stack_ptr;
u16 softirq_pending;
#ifdef CONFIG_X86_64
bool hardirq_stack_inuse;
#else

3
arch/x86/include/asm/hardirq.h
View File

@ -3,9 +3,9 @@
#define _ASM_X86_HARDIRQ_H
#include <linux/threads.h>
#include <asm/current.h>
typedef struct {
u16 __softirq_pending;
#if IS_ENABLED(CONFIG_KVM_INTEL)
u8 kvm_cpu_l1tf_flush_l1d;
#endif
@ -60,6 +60,7 @@ extern u64 arch_irq_stat_cpu(unsigned int cpu);
extern u64 arch_irq_stat(void);
#define arch_irq_stat arch_irq_stat
#define local_softirq_pending_ref pcpu_hot.softirq_pending
#if IS_ENABLED(CONFIG_KVM_INTEL)
static inline void kvm_set_cpu_l1tf_flush_l1d(void)