linux kernel - How to read return value of mmap -

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i'm new topic, have mmaped 3 pages. how can read content of each? know have use page_shift don't know how.

unsigned int* address = mmap(...)

somethings following...

#define page_size 4096  unsigned int * address = mmap(...)  unsigned int * page0 = &address[ 0 * page_size / sizeof(int) ]; unsigned int * page1 = &address[ 1 * page_size / sizeof(int) ]; unsigned int * page2 = &address[ 2 * page_size / sizeof(int) ];

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