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Commit 978b0116 authored by Alexey Dobriyan's avatar Alexey Dobriyan Committed by Ingo Molnar
Browse files

softirq: allocate less vectors 



We don't need whole 32 of them, only NR_SOFTIRQS.

Signed-off-by: default avatarAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 70bb0896

include/linux/interrupt.h

+2 −0
Original line number Original line Diff line number Diff line
@@ -252,6 +252,8 @@ enum 
	HRTIMER_SOFTIRQ,

	HRTIMER_SOFTIRQ,

#endif

#endif

	RCU_SOFTIRQ, 	/* Preferable RCU should always be the last softirq */

	RCU_SOFTIRQ, 	/* Preferable RCU should always be the last softirq */



	NR_SOFTIRQS

};

};





/* softirq mask and active fields moved to irq_cpustat_t in

/* softirq mask and active fields moved to irq_cpustat_t in

kernel/softirq.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -46,7 +46,7 @@ irq_cpustat_t irq_stat[NR_CPUS] ____cacheline_aligned; 
EXPORT_SYMBOL(irq_stat);

EXPORT_SYMBOL(irq_stat);

#endif

#endif





static struct softirq_action softirq_vec[32] __cacheline_aligned_in_smp;

static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp;





static DEFINE_PER_CPU(struct task_struct *, ksoftirqd);

static DEFINE_PER_CPU(struct task_struct *, ksoftirqd);