softirq.h
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上传日期:2013-04-10
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文件大小:1k
- /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1997, 1998, 1999, 2000, 2001 Ralf Baechle
- * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
- * Copyright (C) 1999, 2001 MIPS Technologies, Inc.
- */
- #ifndef _ASM_SOFTIRQ_H
- #define _ASM_SOFTIRQ_H
- #include <asm/atomic.h>
- #include <asm/hardirq.h>
- static inline void cpu_bh_disable(int cpu)
- {
- local_bh_count(cpu)++;
- barrier();
- }
- static inline void __cpu_bh_enable(int cpu)
- {
- barrier();
- local_bh_count(cpu)--;
- }
- #define local_bh_disable() cpu_bh_disable(smp_processor_id())
- #define __local_bh_enable() __cpu_bh_enable(smp_processor_id())
- #define local_bh_enable()
- do {
- int cpu;
-
- barrier();
- cpu = smp_processor_id();
- if (!--local_bh_count(cpu) && softirq_pending(cpu))
- do_softirq();
- } while (0)
- #define in_softirq() (local_bh_count(smp_processor_id()) != 0)
- #endif /* _ASM_SOFTIRQ_H */