函数源码 |
Source File:mm\slub.c |
Create Date:2022-07-27 17:21:49 |
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1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 | #ifdef CONFIG_PREEMPT/* * Calculate the next globally unique transaction for disambiguiation * during cmpxchg. The transactions start with the cpu number and are then * incremented by CONFIG_NR_CPUS. */#define TID_STEP roundup_pow_of_two(CONFIG_NR_CPUS)#else/* * No preemption supported therefore also no need to check for * different cpus. */#define TID_STEP 1#endifstatic inline unsigned long next_tid(unsigned long tid){ return tid + TID_STEP;} |