阅读代码中的疑问,请大虾解答

Anomymous 发表于 2003-5-30 22:56:28

LINUX内核源代码情景分析(上)中51页讲find_vma()函数。其中在AVL树搜索中假如有这样一个AVL树
               o
               /\
            o o
假设给定的逻辑地址不在这三个块中，且是低地址。这时返回的vma地址好像不为NULL，而是最接近它的那个vma地址，是否find_vma()函数有问题？还是我读代码的问题？问题在哪？请大虾指教！！！

Dragonfly 发表于 2003-5-31 00:07:34

/* Look up the first VMA which satisfiesaddr < vm_end,NULL if none. */
so it return the nearest address as u said. and the code list there is
different with 2.4.20 code. u may try to read 2.4.20 code directly.

and
http://www.csn.ul.ie/~mel/projects/vm/guide/text/understand.txt
http://www.csn.ul.ie/~mel/projects/vm/guide/text/code.txt may help u to
understand it.

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阅读代码中的疑问,请大虾解答