softirq/core: Turn default irq_cpustat_t to standard per-cpu
In order to optimize and consolidate softirq mask accesses, let's convert the default irq_cpustat_t implementation to per-CPU standard API. Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David S. Miller <davem@davemloft.net> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: James E.J. Bottomley <jejb@parisc-linux.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Rich Felker <dalias@libc.org> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/1525786706-22846-5-git-send-email-frederic@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
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@ -18,8 +18,8 @@
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*/
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#ifndef __ARCH_IRQ_STAT
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extern irq_cpustat_t irq_stat[]; /* defined in asm/hardirq.h */
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#define __IRQ_STAT(cpu, member) (irq_stat[cpu].member)
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DECLARE_PER_CPU_ALIGNED(irq_cpustat_t, irq_stat); /* defined in asm/hardirq.h */
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#define __IRQ_STAT(cpu, member) (per_cpu(irq_stat.member, cpu))
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#endif
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/* arch independent irq_stat fields */
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@ -49,8 +49,8 @@
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*/
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#ifndef __ARCH_IRQ_STAT
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irq_cpustat_t irq_stat[NR_CPUS] ____cacheline_aligned;
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EXPORT_SYMBOL(irq_stat);
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DEFINE_PER_CPU_ALIGNED(irq_cpustat_t, irq_stat);
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EXPORT_PER_CPU_SYMBOL(irq_stat);
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#endif
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static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp;
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