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hardirq.h
Package: linux-2.4.20.tar.gz [view]
Upload User: jlfgdled
Upload Date: 2013-04-10
Package Size: 33168k
Code Size: 1k
Category:
Linux-Unix program
Development Platform:
Unix_Linux
- #ifndef __M68K_HARDIRQ_H
- #define __M68K_HARDIRQ_H
- #include <linux/threads.h>
- #include <linux/cache.h>
- /* entry.S is sensitive to the offsets of these fields */
- typedef struct {
- unsigned int __softirq_pending;
- unsigned int __local_irq_count;
- unsigned int __local_bh_count;
- unsigned int __syscall_count;
- struct task_struct * __ksoftirqd_task;
- } ____cacheline_aligned irq_cpustat_t;
- #include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
- #define in_interrupt() (local_irq_count(smp_processor_id()) + local_bh_count(smp_processor_id()) != 0)
- #define in_irq() (local_irq_count(smp_processor_id()) != 0)
- #define hardirq_trylock(cpu) (local_irq_count(cpu) == 0)
- #define hardirq_endlock(cpu) do { } while (0)
- #define irq_enter(cpu) (local_irq_count(cpu)++)
- #define irq_exit(cpu) (local_irq_count(cpu)--)
- #define synchronize_irq() barrier()
- #endif