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  1. #1

    rb_entry() macro in rbtree.h


    i want to know the contribution of #define rb_entry(ptr,type,member) container_of(ptr,type,member) macro Line 50 of rbtree.h in process scheduling. The macro has been used in __enqueue_entity() defined in fair.c

    Want to know where is the process and their vruntime are stored..

    Need explaination in detail.

    Any help in this regard will be highly appreciable.

  2. #2
    Linux Guru
    Join Date
    Dec 2013
    Victoria, B.C. Canada
    The rb in rb_entry refers to a red-black tree. Linux uses a tree as defined in linux/rbtree.h to store runnable processes. The scheduler searches through to find the smallest vruntime to run next.

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