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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-s390x/] [softirq.h] - Blame information for rev 1774

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Line No. Rev Author Line
1 1275 phoenix
/*
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 *  include/asm-s390/softirq.h
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 *
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 *  S390 version
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 *
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 *  Derived from "include/asm-i386/softirq.h"
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 */
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#ifndef __ASM_SOFTIRQ_H
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#define __ASM_SOFTIRQ_H
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#ifndef __LINUX_SMP_H
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#include <linux/smp.h>
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#endif
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#include <asm/atomic.h>
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#include <asm/hardirq.h>
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#include <asm/lowcore.h>
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#define __cpu_bh_enable(cpu) \
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                do { barrier(); local_bh_count(cpu)--; } while (0)
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#define cpu_bh_disable(cpu) \
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                do { local_bh_count(cpu)++; barrier(); } while (0)
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#define local_bh_disable()      cpu_bh_disable(smp_processor_id())
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#define __local_bh_enable()     __cpu_bh_enable(smp_processor_id())
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#define in_softirq() (local_bh_count(smp_processor_id()) != 0)
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extern void do_call_softirq(void);
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#define local_bh_enable()                                               \
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do {                                                                    \
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        unsigned int *ptr = &local_bh_count(smp_processor_id());        \
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        barrier();                                                      \
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        if (!--*ptr)                                                    \
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                if (softirq_pending(smp_processor_id()))                \
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                        /* Use the async. stack for softirq */          \
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                        do_call_softirq();                              \
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} while (0)
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#endif  /* __ASM_SOFTIRQ_H */
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