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Viewing changes to include/linux/percpu_ida.h

  • Committer: Package Import Robot
  • Author(s): Ben Hutchings
  • Date: 2014-02-02 16:57:49 UTC
  • mfrom: (1.1.10) (0.1.21 sid)
  • Revision ID: package-import@ubuntu.com-20140202165749-tw94o9t1t0a8txk6
Tags: 3.13-1~exp2
Merge changes from sid up to 3.12.6-3

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include/linux/percpu_ida.h
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         * percpu_ida_init()
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         */
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        unsigned                        nr_tags;
 
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        unsigned                        percpu_max_size;
 
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        unsigned                        percpu_batch_size;
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        struct percpu_ida_cpu __percpu  *tag_cpu;
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        } ____cacheline_aligned_in_smp;
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};
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/*
 
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 * Number of tags we move between the percpu freelist and the global freelist at
 
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 * a time
 
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 */
 
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#define IDA_DEFAULT_PCPU_BATCH_MOVE     32U
 
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/* Max size of percpu freelist, */
 
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#define IDA_DEFAULT_PCPU_SIZE   ((IDA_DEFAULT_PCPU_BATCH_MOVE * 3) / 2)
 
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int percpu_ida_alloc(struct percpu_ida *pool, gfp_t gfp);
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void percpu_ida_free(struct percpu_ida *pool, unsigned tag);
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void percpu_ida_destroy(struct percpu_ida *pool);
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int percpu_ida_init(struct percpu_ida *pool, unsigned long nr_tags);
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int __percpu_ida_init(struct percpu_ida *pool, unsigned long nr_tags,
 
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        unsigned long max_size, unsigned long batch_size);
 
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static inline int percpu_ida_init(struct percpu_ida *pool, unsigned long nr_tags)
 
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{
 
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        return __percpu_ida_init(pool, nr_tags, IDA_DEFAULT_PCPU_SIZE,
 
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                IDA_DEFAULT_PCPU_BATCH_MOVE);
 
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}
 
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typedef int (*percpu_ida_cb)(unsigned, void *);
 
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int percpu_ida_for_each_free(struct percpu_ida *pool, percpu_ida_cb fn,
 
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        void *data);
 
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unsigned percpu_ida_free_tags(struct percpu_ida *pool, int cpu);
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#endif /* __PERCPU_IDA_H__ */